CISF Constable Mock Test - 6 - NDA MCQ

# CISF Constable Mock Test - 6 - NDA MCQ

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## 100 Questions MCQ Test CISF Constable Mock Test Series 2024 - CISF Constable Mock Test - 6

CISF Constable Mock Test - 6 for NDA 2024 is part of CISF Constable Mock Test Series 2024 preparation. The CISF Constable Mock Test - 6 questions and answers have been prepared according to the NDA exam syllabus.The CISF Constable Mock Test - 6 MCQs are made for NDA 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for CISF Constable Mock Test - 6 below.
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CISF Constable Mock Test - 6 - Question 1

### A piece of paper is folded and punched as shown below in the question figures. From the given answer figures, indicate how it will appear when opened.

Detailed Solution for CISF Constable Mock Test - 6 - Question 1

Above figure represents how piece of paper will appear after folding and punched as per given in the question and then unfolded.
Hence, the figure given in option 4 is the correct answer.

CISF Constable Mock Test - 6 - Question 2

### Read the following information carefully and answer the questions that follow. Six friends are sitting in a circle at a party.  Anas is sitting two places right of Avi who is sitting exactly opposite Anees. Anees is on the immediate left of Arun, who is sitting exactly opposite to Ajay. Anil is also in this group. Q. Anas is sitting to the

Detailed Solution for CISF Constable Mock Test - 6 - Question 2

When we arrange the six friends, we get the following arrangement.

Clearly, from the diagram, Anas is sitting to the right of Ajay and to the left of Anees.

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CISF Constable Mock Test - 6 - Question 3

### Five friends, B, E, G, H and J are sitting around a circular table facing the centre. G sits second to the left of E. H sits immediate right of E. J is not immediate neighbor of H. Who among the following sits second to the left of H?

Detailed Solution for CISF Constable Mock Test - 6 - Question 3

As per the given instructions:
I. G sits second to the left of E.
II. H sits immediate right of E and J is not immediate neighbor of H.

Clearly, J sits second to the left of H.

CISF Constable Mock Test - 6 - Question 4

A person following his master’s command in morning turns 45 degree towards his right and found this shadow to his left. In which direction was he earlier facing?

Detailed Solution for CISF Constable Mock Test - 6 - Question 4

In the morning sun rises in the east.
So the shadow fall in the west.
Since the shadow is on his left it means he is facing toward North and 45 degree towards his left will bring back to his earlier direction in which he was facing.
Hence, he was facing toward North – West.

CISF Constable Mock Test - 6 - Question 5

If T is N, R is I, A is M, B is F, N is E and W is Z then, as per the given codes, what would be the first letter of the word ‘WORD’?

Detailed Solution for CISF Constable Mock Test - 6 - Question 5

First letter of WORD is ‘W’
And here, ‘W’ is coded as ‘Z’.
Hence, Z is the correct answer.

CISF Constable Mock Test - 6 - Question 6

In the following question, select the related number from the given alternatives.

697 : 976 ∷ 532 : ?

Detailed Solution for CISF Constable Mock Test - 6 - Question 6

In 697 : 976,
1st digit of the number shifted to the last place.
2nd digit is shifted to first place.
3rd digit is shifted to 2nd place.
Similarly, for 532, it will be 325.
Hence, 325 is the correct answer.

CISF Constable Mock Test - 6 - Question 7

In the following question, select the odd letters from the given alternatives.

Detailed Solution for CISF Constable Mock Test - 6 - Question 7

The logic here is as follows,
1) DEC = D + 1 = E, D – 1 = C
2) JKI = J + 1 = K, J – 1 = I
3) PQO = P + 1 = Q, P – 1 = O
4) TUR = T + 1 = U, T – 2 = R

Hence, TUR are the odd letters.

CISF Constable Mock Test - 6 - Question 8

Find the number of minimum straight lines required to make figure.

Detailed Solution for CISF Constable Mock Test - 6 - Question 8

Hence, there are 14 minimum straight lines required to make the figure.

CISF Constable Mock Test - 6 - Question 9

In the following question, select the related word pair from the given alternatives.
House : Servant :: ? : ?

Detailed Solution for CISF Constable Mock Test - 6 - Question 9

Servant is a person employed in a house on domestic duties or as a personal attendant.
Similarly,
a man whose job is to serve customers at their tables in a restaurant.
Hence, ‘restaurant : Waiter’ is the correct answer.

CISF Constable Mock Test - 6 - Question 10

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statements:
I) All fans are cups.
II) All cups are pillows.

Conclusions:
I) All fans are pillows.
II) All pillows are fans.

Detailed Solution for CISF Constable Mock Test - 6 - Question 10

Venn diagram of given statement can be drawn as shown below,

Conclusion:
I) All fans are pillows. ⇒True (as it is definite conclusion)
II) All pillows are fans. ⇒ False (as it is just a possible case)
Hence, “only conclusion I follows” is correct statement.

CISF Constable Mock Test - 6 - Question 11

In the given question which word from the alternatives can be formed from the word “PRETENTOUS”?

Detailed Solution for CISF Constable Mock Test - 6 - Question 11

1) NOTICE → PRETENTOUS → cannot be formed as there is no I and C.
2) ORPHEN → PRETENTOUS → cannot be formed as there is no H.
3) ROUTE → PRETENTOUS → can be formed.
4) ENTITLE → PRETENTOUS → cannot be formed as there is no L.
Hence, “ROUTE” is the correct answer.

CISF Constable Mock Test - 6 - Question 12

Which answer figure will complete the pattern in the question figure?

Detailed Solution for CISF Constable Mock Test - 6 - Question 12

Hence, option 2) is the correct answer figure.

CISF Constable Mock Test - 6 - Question 13

Direction: Arrange the given words in reverse order in which they occur in the dictionary and choose the one that comes last after arranging in reverse order.

Forbid, Force, Fond, Forage

Detailed Solution for CISF Constable Mock Test - 6 - Question 13

On arranging in reverse word as per dictionary order,
i) Force
ii) Forbid
iii) Forage
iv) Fond
Hence, “Fond” comes last after arranging in reverse word as per dictionary order.

CISF Constable Mock Test - 6 - Question 14

In the following question, select the odd number from the given alternatives.

Detailed Solution for CISF Constable Mock Test - 6 - Question 14

Except 1679, rest of the numbers are the square of 33, 37, 39 respectively.

CISF Constable Mock Test - 6 - Question 15

Find out the correct answer for the unsolved equation based on a certain system.

3 × 5 = 20, 4 × 8 = 37, 9 × 7 = ?

Detailed Solution for CISF Constable Mock Test - 6 - Question 15

3 × 5 = 15 + 5 = 20,
4 × 8 = 32 + 5 = 37,
Similarly,
9 × 7 = 63 + 5 = 68.
So, the missing term is 68.

CISF Constable Mock Test - 6 - Question 16

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

XRN, UPM, RNL, ?, LJJ

Detailed Solution for CISF Constable Mock Test - 6 - Question 16

X - 3 = U - 3 = R - 3 = O - 3 = L
R - 2 = P - 2 = N - 2 = L - 2 = I
N - 1 = M - 1 = L - 1 = K - 1 = J

CISF Constable Mock Test - 6 - Question 17

In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

Detailed Solution for CISF Constable Mock Test - 6 - Question 17

The logic here is as follows,
In column I: (2 × 5) + 4 = 14
In column II: (3× 3) + 6 = 15
Similarly,
In column III: (2 × 7) + 4 = 18.
Thus the missing number is 18.

CISF Constable Mock Test - 6 - Question 18

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

96, 83, 72, 63, 56, 51, ?

Detailed Solution for CISF Constable Mock Test - 6 - Question 18

The pattern followed here is,
96 - 13 = 83,
83 - 11 = 72,
72 - 9 = 63,
63 - 7 = 56,
56 - 5 = 51,
51 - 3 = 48
Hence, 48 is the correct answer.

CISF Constable Mock Test - 6 - Question 19

In the following question, select the related numbers from the given alternatives.
BCDE : 4688 : : ADBF : ?

Detailed Solution for CISF Constable Mock Test - 6 - Question 19

With reference to English alphabets,
B = 2 → 2 × 2 = 4
C = 3 → 3 + 3 = 6
D = 4 → 4 × 2 = 8
E = 5 → 5 + 3 = 8

Here, alternately positioned number of letters is multiplied by 2 and added by 3.
Similarly,
A = 1 → 1 × 2 = 2
D = 4 → 4 + 3 = 7
B = 2 → 2 × 2 = 4
F = 6 → 6 + 3 = 9

CISF Constable Mock Test - 6 - Question 20

Which of the following cube in the answer figure cannot be made based on the unfolded cube in the question figure?

Detailed Solution for CISF Constable Mock Test - 6 - Question 20

must be opposite but in option 3), they are adjacent.
Hence, option 3) is the correct answer.

CISF Constable Mock Test - 6 - Question 21

Pointing to a lady, Diwakar said, "Her mother's only grandson is my son." How is that lady related to Diwakar?

Detailed Solution for CISF Constable Mock Test - 6 - Question 21

Using the following notations, we can draw the family tree,

CISF Constable Mock Test - 6 - Question 22

Direction: In the given question, one or two statement is given followed by two conclusions I and II. You have to consider the statement to be true, even if it seems to be at variance from commonly known facts. You are to decide which of the given conclusions can definitely be drawn from the given statements.
Statement:
Cactus plants are fleshy but need least water.
Conclusions:
I. All fleshy plants are cactus.
II. Cactus plants need least water.

Detailed Solution for CISF Constable Mock Test - 6 - Question 22

In the statement, it is given that All cactus are Fleshy but we can not conclude from the statement that all flesh plants are cactus, as it is not necessarily true. Therefore, conclusion I does not follow.
Now for the 2nd conclusion, it is given in the statement that cactus needs least water hence, we can safely conclude that all the cactus plants need least water. Therefore, conclusion II follow.

CISF Constable Mock Test - 6 - Question 23

Choose the odd one out from the given alternatives.

Detailed Solution for CISF Constable Mock Test - 6 - Question 23

1) Minuscule - tiny
2) Feeble - lacking physically strength
3) Infirm - not firm or weak
4) Frail - delicate
Here, all except Minuscle are synonym of weak

CISF Constable Mock Test - 6 - Question 24

Correct the following equation by interchanging two signs.

63 – 3 + 24 ÷ 20 = 25

Detailed Solution for CISF Constable Mock Test - 6 - Question 24

Given equation: 63 – 3 + 24 ÷ 20 = 25
Checking each of the options,
1. 63 ÷ 3 + 24 – 20 = 25, True.
2. 63 + 3 - 24 ÷ 20 ≠ 25, False.
3. 63 – 3 ÷ 24 + 20 ≠ 25, False.
So, by interchanging – and ÷ we will get the correct equation.

CISF Constable Mock Test - 6 - Question 25

In question, choose the correct alternative from the given one which will complete the series.

LK4, QN16, VQ64, ?, FW1024

Detailed Solution for CISF Constable Mock Test - 6 - Question 25

Hence, the solution is as follows:

CISF Constable Mock Test - 6 - Question 26

Which of the following applications has been chosen for the National e-Governance Awards 2019?

Detailed Solution for CISF Constable Mock Test - 6 - Question 26
• Railway's ticket booking mobile application, IRCTC Rail Connect, has been chosen for the National e-Governance Awards 2019.
• The app was launched in January 2017 to facilitate the booking of train tickets in a faster and easier way.
• Chhattisgarh government's 'Khanij online' and 14 such IT projects will also receive the award.
CISF Constable Mock Test - 6 - Question 27

Which of the following day is observed every year on the 13th of February?

Detailed Solution for CISF Constable Mock Test - 6 - Question 27
• World Radio Day is observed every year on the 13th of February to celebrate radio as a forum for information and entertainment.
• The theme of this year is Dialogue, Tolerance, and Peace Broadcasts.
• The day was proclaimed on 3rd November 2011 by UNESCO's 36th General Conference.
CISF Constable Mock Test - 6 - Question 28

Which Governor General of the British Empire to India had banned the practice of Sati?

Detailed Solution for CISF Constable Mock Test - 6 - Question 28

Raja Ram Mohan Roy laid down a petition in front of Lord William Bentinck, the Governor General of India to ban the practice of Sati. In the year 1829, the practice was banned in British Bengal and was later extended to the states of Mumbai and Madras in the year 1830.

CISF Constable Mock Test - 6 - Question 29

Who is credited as the author of “Arthashastra”?

Detailed Solution for CISF Constable Mock Test - 6 - Question 29

Chanakya is the author of Arthashastra. It has been written in Sanskrit and is an ancient Indian treatise on military strategy, economic policy, and statecraft.

CISF Constable Mock Test - 6 - Question 30

What is the time difference between Indian Standard Time [IST] and Greenwich Mean Time [GMT]?

Detailed Solution for CISF Constable Mock Test - 6 - Question 30
• Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London which is same all year round and is not affected by Summer Time or Daylight Saving Time.
• Indian Standard Time (IST) is the time observed throughout India, with a time offset of UTC+05:30 ( 5  hours 30 minutes ) which is calculated on the basis of 82.30' E longitude, in Mirzapur, Uttar Pradesh
CISF Constable Mock Test - 6 - Question 31

Which soil is of volcanic origin?

Detailed Solution for CISF Constable Mock Test - 6 - Question 31

Black soil is of volcanic origin.

• These soils have been formed by the solidification of lava that has been spread over a large area during volcanic activities in the Deccan plateau (Deccan and the Rajmahal trap) occurred over thousands of years ago.
• The black color of the soil is due to the presence of titaniferous magnetite, compounds of iron and aluminum, accu­mulated humus and colloidal hydrated double iron and aluminum silicate.
• These soils are best suited for the cultivation of the cotton crop.
• These soils are called as regur and black cotton soils.
CISF Constable Mock Test - 6 - Question 32

Which type of coal is called brown coal?

Detailed Solution for CISF Constable Mock Test - 6 - Question 32
• The secondary stage in the formation of coal, Lignite, is brown in color and is, therefore, called brown coal.
• With an approximate calorific value of 15 MJ/kg, Lignite serves as a low-grade fuel which is mostly used for domestic use.
•  Lignite contains about 66 % Carbon, 20 % Oxygen, 5 % Hydrogen, 1 % Nitrogen, and Sulfur each and 3.5 % ash.
• Peat is the first stage of transformation and that is why it contains more impurities whereas Anthracite is the best coal available with around 90% carbon content in it.
• Bituminous coal is a soft type of coal and it is the most extensively used coal.
CISF Constable Mock Test - 6 - Question 33

Which area of India was known as Avantika in ancient times?

Detailed Solution for CISF Constable Mock Test - 6 - Question 33

Ujjain, also known historically as Ujjaiyini and Avanti, emerged as the first major centre in the Malwa region during India's second wave of urbanisation in the 7th century BC (the first wave was the Indus Valley Civilization). Avanti was one of the prominent mahajanapadas of ancient India. In the post - Mahabharata period - around 500 BC - Avanti was an important kingdom in western India; it was ruled by the Haihayas, a people who were responsible for the destruction of Naga power in western India.

CISF Constable Mock Test - 6 - Question 34

Which of the following is an ore of Aluminium?

Detailed Solution for CISF Constable Mock Test - 6 - Question 34

Cryolite is an ore of aluminium. It overcomes the difficulty of separating aluminium from oxygen in the oxide ores when used as a flux.
Galena is the natural mineral form of lead sulphide.
Cinnabar is derived from mercury sulphide.
Epsom salt is magnesium sulphate which is an inorganic salt.

CISF Constable Mock Test - 6 - Question 35

How many members are nominated in Rajya Sabha and Lok Sabha respectively by the President of India?

Detailed Solution for CISF Constable Mock Test - 6 - Question 35
• According to Article 80 of the Indian Constitution, out of the 250 members of the Rajya Sabha, 12 are nominated by the President of India.
• According to Article 331 of the Indian Constitution, out of the 530 members of the Lok Sabha, the President can nominate 2 Anglo Indians if he/she feels that the community is not being adequately represented in the House.
CISF Constable Mock Test - 6 - Question 36

What is the capital of Manipur?

Detailed Solution for CISF Constable Mock Test - 6 - Question 36
• The official language of Manipur is Manipuri.
• Capital : Imphal.
• State animal : Sangai.
• State bird : Mrs Hume's pheasant.
• State tree : Toon.
• State flower : Shirui lily.
CISF Constable Mock Test - 6 - Question 37

Hydrometer is used for the measurement of which among the following?

Detailed Solution for CISF Constable Mock Test - 6 - Question 37

CISF Constable Mock Test - 6 - Question 38

When a body is partially or fully immersed in a liquid it experiences a loss in its weight that is equal to the weight of liquid displaced by its immersed part. This is the principle of _________.

Detailed Solution for CISF Constable Mock Test - 6 - Question 38

• When any object is submerged in water, there is apparent loss of weight.
• When an object is partially or fully immersed in a liquid, the apparent loss of weight is equal to the weight of liquid displaced by it. This is Archimedes law.
• Apparent weight = Weight of object – Thrust force = Weight of water displaced.
• According to this principle if an object has V volume in water, then it displaces same volume V of the liquid.
• The mass of liquid displaced is,
Mass = Density × Volume

CISF Constable Mock Test - 6 - Question 39

If lift is going up with acceleration, the apparent weight of a body is

Detailed Solution for CISF Constable Mock Test - 6 - Question 39

Imagine you are standing on scales in the lift. As the lift accelerates up, the floor pushes up on you with a bigger force than the force of your weight down, so you feel heavier (and the reading on the scale would be greater than normal).

CISF Constable Mock Test - 6 - Question 40

In 1908, Bal Gangadhar Tilak was imprisoned for 6 years and was sent to:

Detailed Solution for CISF Constable Mock Test - 6 - Question 40

On July 3rd 1908, Bal Gangadhar Tilak was arrested for sedition by the British. Tilak was sentenced to a jail from 1908 to 1914 in Mandalay in Burma. During this time in jail,Tilak wrote Shrimad Bhagvat Gita Rahasya .

CISF Constable Mock Test - 6 - Question 41

Which of the following rivers flows into the Bay of Bengal?

Detailed Solution for CISF Constable Mock Test - 6 - Question 41

The Bay of Bengal occupies an area of 2,172,000 square kilometres (839,000 sq mi). A number of large rivers – the Ganges and three major rivers of Bangladesh the Padma, the Jamuna and Meghna, other rivers such as the Irrawaddy River, Godavari, Mahanadi, Krishna and Kaveri flow into the Bay of Bengal.

CISF Constable Mock Test - 6 - Question 42

Which of the following is the correct match?

Detailed Solution for CISF Constable Mock Test - 6 - Question 42

Rosewood trees are found in Deciduous forests while Bushes are usually situated in Dry forests. Sundari trees are usually found in Mangrove forests of Sunderbans.

CISF Constable Mock Test - 6 - Question 43

Ramakant Achrekar passed away in Mumbai on 2 January 2019. He was a ________.

Detailed Solution for CISF Constable Mock Test - 6 - Question 43
• Cricket coach Ramakant Achrekar passed away in Mumbai on 2 January 2019.
• He was the Sachin Tendulkar's cricket coach.
• In 1990, he was honoured with the Dronacharya Award for Outstanding coaches in Sports and Games.
• He was also honoured with the Padma Shri in 2010.
• In 2010, he was honoured the 'Lifetime Achievement' award by the Sports Illustrated.
CISF Constable Mock Test - 6 - Question 44

Who has been appointed as the secretary of Competition Commission of India (CCI) on 1 January 2019?

Detailed Solution for CISF Constable Mock Test - 6 - Question 44
• The Competition Commission of India (CCI) appointed Pramod Kumar Singh as its secretary.
• Prior to this, PK Singh was adviser (law) to the CCI.
• The secretary would act as the nodal officer for the Commission for making or receiving all statutory information and entering into the any formal relationships
• The CCI was established in 2003 and draws its power from the Competition Act, 2002.
CISF Constable Mock Test - 6 - Question 45

What is the full form of HIV?

Detailed Solution for CISF Constable Mock Test - 6 - Question 45

The human immunodeficiency virus is a lentivirus that causes HIV infection and over time acquired immunodeficiency syndrome.

CISF Constable Mock Test - 6 - Question 46

Which of the following organs is affected in Hepatitis?

Detailed Solution for CISF Constable Mock Test - 6 - Question 46

Hepatitis is a medical condition defined by the inflammation of the liver and characterized by the presence of inflammatory cells in the tissue of the organ.

CISF Constable Mock Test - 6 - Question 47

Which of the following won the Best Picture award at the 91st Academy Awards held in Los Angeles, California?

Detailed Solution for CISF Constable Mock Test - 6 - Question 47
• The 91st Academy Awards were presented at the Dolby Theatre, in Los Angeles, California.
• Best Picture - Green Book.
• Best Actor in a Leading Role - Rami Malek for Bohemian Rhapsody.
• Best Actress in a Leading Role - Olivia Colman for The Favourite.
• Best Directing - Alfonso Cuarón for Roma.
• Best Supporting Actor - Mahershala Ali for Green Book.
CISF Constable Mock Test - 6 - Question 48

Where Prime Minister Narendra Modi inaugurated the 'National Museum of Indian Cinema' (NMIC) on 19 January 2019?

Detailed Solution for CISF Constable Mock Test - 6 - Question 48
• Prime Minister Narendra Modi inaugurated the 'National Museum of Indian Cinema' (NMIC) in Mumbai on 19 January 2019.
• The visitors will be able to enjoy the century-long journey of Indian cinema via visuals, interactive exhibits and multimedia.
• The creation of the Museum has been guided by the Museum Advisory Committee headed by Shri Shyam Benegal.
CISF Constable Mock Test - 6 - Question 49

Who among the following gave the principle of "survival of the fittest"?

Detailed Solution for CISF Constable Mock Test - 6 - Question 49

‘Survival of the fittest’ is a phrase that comes from the principal of natural selection which was given by Charles Darwin. The phrase was actually used first by Herbert Spencer after reading Darwin’s book ‘On the Origin of Species’.

CISF Constable Mock Test - 6 - Question 50

Where were the 2018 Summer Youth Olympic Games held?

Detailed Solution for CISF Constable Mock Test - 6 - Question 50

CISF Constable Mock Test - 6 - Question 51

Working 15 hours a day, Goldy can complete a piece of work in 24 days. How many hours a day he should work so as to finish the work in 18 days?

Detailed Solution for CISF Constable Mock Test - 6 - Question 51

Number of hours working = 15
Number of days = 24
∴ Total working hour days to complete the work = 15 × 24 = 360
∴ Number of hours required to finish the work = 360/18 = 20 hours

CISF Constable Mock Test - 6 - Question 52

Two brothers have age in the ratio of 3 ∶ 8. If the ratio of the age of elder brother after 20 years to the double of the present age of younger brother is 3 ∶ 1. What was the ratio of their age 5 years ago (elder ∶ younger)?

Detailed Solution for CISF Constable Mock Test - 6 - Question 52

Let the current age of younger brother and elder brother be 3X and 8X respectively.
Age of elder brother 20 years from now = 20 + 8X
Age of younger brother after he doubles in age = 2 × 3X = 6X
This ratio is 3 ∶ 1
This means (20 + 8X)/6X = 3/1
⇒ 20 + 8X = 18X
⇒ X = 2
Age of younger brother = 6 years
Age of elder brother = 16 years
Ages of brothers 5 years ago = 1, 11
The ratio comes out to be 11 ∶ 1

CISF Constable Mock Test - 6 - Question 53

A man spends 75% of his income and saves the rest. If his income increases by 50% and spending increases by 80%, then what is the percentage change in his savings?

Detailed Solution for CISF Constable Mock Test - 6 - Question 53

Let the old salary be s.
Expenditure = 75% = 3s/4
Savings = 25% = s/4
New salary = s + 50% = s + s/2 = 3s/2.
New Expenditure = 3s/4 + 80% = 3s/4 × (1 + 80/100) = 3s/4 × (9/5) = 27s/20.
New savings = 3s/2 - 27s/20 = 3s/20.
Change in savings: 3s/20 - s/4 = -2s/20 = -s/10
Savings has decreased.
%Decrease = 100 × (-s/10)/(s/4) = 40%

CISF Constable Mock Test - 6 - Question 54

If 465781P is completely divisible by 12, then what is the value of P?

Detailed Solution for CISF Constable Mock Test - 6 - Question 54

If 465781P is completely divisible by 12 then it must be divisible by 3 and 4.
Now number is divisible by 3 when the sum of digits is divisible by 3 i.e. 4 + 6 + 5 + 7 + 8 + 1 + P = 31 + P must be divisible by 3.
Also the last digit can be 2 or 6, then only number will be divisible by 4.
If P = 2, then 33 is divisible by 3 but when P = 6, then 37 is not divisible by 3.
∴ P = 2.

CISF Constable Mock Test - 6 - Question 55

Angles of a triangle are (y + 36)° , (2y - 14)° and (y - 22)°. What is the value (in degrees) of 2y?

Detailed Solution for CISF Constable Mock Test - 6 - Question 55

Sum of angles of a triangle is 180°
(y + 36)° + (2y - 14)° + (y - 22)° = 180°
4y = 180°
y = 45°
Value of 2y = 2 × 45 = 90°

CISF Constable Mock Test - 6 - Question 56

What is the value of (0.5)2 + (0.05)2 + (0.005)2?

Detailed Solution for CISF Constable Mock Test - 6 - Question 56

(0.5)2 + (0.05)2 + (0.005)2
0.25 + 0.0025 + 0.000025
0.252525
∴ (0.5)2 + (0.05)2 + (0.005)2 = 0.252525

CISF Constable Mock Test - 6 - Question 57

If (x – 7)2 + (y + 10)2 + (z – 6)2 = 0, then find the value of x + y + z

Detailed Solution for CISF Constable Mock Test - 6 - Question 57

We can see that all the terms in the given problem is a square and the square of any number is always positive. So, the sum can never be zero
The only possibility is when each term in the bracket is equal to 0
That is x – 7 = 0, y + 10 = 0, z – 6 = 0
The values of x, y, z will therefore be 7, -10 and 6 respectively
∴ Value of (x + y + z) = 7 + (-10) + 6 = 13 – 10 = 3

CISF Constable Mock Test - 6 - Question 58

In an amalgam, mercury and silver are in the ratio of 3 ∶ 7. In the second amalgam, the ratio of same elements is 1 ∶ 9. If equal quantities of these two amalgam are mixed to form a new amalgam, then what will be the ratio of both of these elements in the new amalgam?

Detailed Solution for CISF Constable Mock Test - 6 - Question 58

Let the quantity of amalgams mixed be ‘x’ units
Quantity of mercury in first amalgam = (3/10)x
Quantity of mercury in second amalgam = (1/10)x
Quantity of mercury in new amlagam = 3x/10 + x/10 = 4x/10 = 2x/5
Similarly,
Quantity of silver in first amalgam = (7/10)x
Quantity of silver in second amalgam = (9/10)x
Quantity of silver in new amlagam = 7x/10 + 9x/10 = 16x/10 = 8x/5
∴ Ratio of new amalgam = (2x/5) ∶ (8x/5) = 1 ∶ 4

CISF Constable Mock Test - 6 - Question 59

A sum becomes Rs. 2286 in 3 years and Rs. 2448 in 4 years at simple interest. What is the rate (in percentage) of interest per annum?

Detailed Solution for CISF Constable Mock Test - 6 - Question 59

S.I. of 1 year = Amount after 4 year – Amount after 3 year = 2448 – 2286 = 162
P = Amount of 3 years – S.I of 3 years = 2286 – 162 × 3 = 2286 – 486 = 1800
S.I = (P × R × T)/100
⇒ 162 = (1800 × R × 1)/100
∴ R = 162/18 = 9%

CISF Constable Mock Test - 6 - Question 60

The average of 8 consecutive integers is 23/2. What is the average of first three integers?

Detailed Solution for CISF Constable Mock Test - 6 - Question 60

Let the 8 consecutive integers be x, (x + 1), (x + 2), (x + 3), (x + 4), (x + 5), (x + 6), (x + 7)
Average = [x + (x + 1) + (x + 2) + (x + 3) + (x + 4) + (x + 5) + (x + 6) + (x + 7)]/8 = 23/2
⇒ (8x + 28) = (23/2) × 8 = 92
⇒ 8x = 92 - 28 = 64
⇒ x = 64/8 = 8
So, the first three numbers are 8, (8 + 1), (8 + 2)
Average of the first three integers = (8 + 9 + 10)/3 = 27/3 = 9
∴ Required Average = 9

CISF Constable Mock Test - 6 - Question 61

The sum for 2 years gives a compound interest of Rs 3225 at 15% rate. Then sum is

Detailed Solution for CISF Constable Mock Test - 6 - Question 61

Let the sum be P.
Now as per given, CI = 3225, r = 15% and t = 2

⇒ 1.3225P – P = 3225
⇒ 0.3225P = 3225
⇒ P = 10000

CISF Constable Mock Test - 6 - Question 62

Simplify: 52 - 4 of (17 - 12) + 4 × 7

Detailed Solution for CISF Constable Mock Test - 6 - Question 62

52 - 4 of (17 - 12) + 4 × 7
= 52 - 4 of 5 + 4 × 7
= 52 - 4 × 5 + 4 × 7
= 52 - 20 + 4 × 7
= 52 - 20 + 28
= 32 + 28
= 60

CISF Constable Mock Test - 6 - Question 63

The ratio of two numbers is 1 : 3. If their difference is 144, then what is the smallest number?

Detailed Solution for CISF Constable Mock Test - 6 - Question 63

Let two numbers be x and 3x
Given,
Their difference = 144
⇒ 3x - x = 144
⇒ 2x = 144
⇒ x = 72
∴ The smallest one = x = 72

CISF Constable Mock Test - 6 - Question 64

What is the value of

Detailed Solution for CISF Constable Mock Test - 6 - Question 64

CISF Constable Mock Test - 6 - Question 65

A box weighs 8.5 kg when full of sand and weighs 5.5 kg when it is half filled with sand. Weight of the empty box is

Detailed Solution for CISF Constable Mock Test - 6 - Question 65

Weight of sand removed = 8.5 – 5.5 = 3 kg
Therefore, Weight of sand fully filled in the box = 6kg
Therefore, Weight of empty box = 8.5 – 6 = 2.5 kg

CISF Constable Mock Test - 6 - Question 66

Pooja wants to sell a watch at a profit of 20%. She bought it at 10% less and sold it at Rs. 30 less, but still she gained 20%. The cost price of watch is

Detailed Solution for CISF Constable Mock Test - 6 - Question 66

C. P. of watch = Rs. x (let)

According to the question,

x = 250

CISF Constable Mock Test - 6 - Question 67

A merchant purchases a watch for Rs. 510 and fixes its marked price in such a way that after allowing a discount of 15%, he earns a profit of 30%. What is the marked price (in Rs.) of the watch?

Detailed Solution for CISF Constable Mock Test - 6 - Question 67

Cost Price = 510
Profit = 30%
⇒ Selling Price = 510 + 0.3 × 510 = 663
Let the Marked Price be x
⇒ SP = x – 0.15x = 0.85x
⇒ 0.85x = 663
⇒ x = 663/0.85 = Rs. 780

CISF Constable Mock Test - 6 - Question 68

Find the curved surface area (in cm2) of a right circular cylinder of diameter 21 cm and height 10 cm.

Detailed Solution for CISF Constable Mock Test - 6 - Question 68

Curved Surface area = 2πrh = 2 × 22/7 × 21/2 × 10
∴ Curved Surface area = 22 × 3 × 10 = 660 cm2

CISF Constable Mock Test - 6 - Question 69

What is the unit digit of 1261 × 3474 × 1269?

Detailed Solution for CISF Constable Mock Test - 6 - Question 69

Unit digit of 1261 × 3474 × 1269 will be same as unit digit of 1 × 4 × 9
1 × 4 × 9 = 36
Unit digit of 36 is 6
∴ Unit digit of 1261 × 3474 × 1269 will also be 6.

CISF Constable Mock Test - 6 - Question 70

A platform is of length 475 m. A train takes 36 s to cross this platform. Train's length is 465 m. What is the speed at which the train is travelling?

Detailed Solution for CISF Constable Mock Test - 6 - Question 70

Length of the platform = 475 m
Length of the train = 465 m
Distance travelled by train = Length of the platform + Length of the train = 475 + 465 = 940 m
Time taken to cross the platform = 36 s
Speed of the train
Speed of train

CISF Constable Mock Test - 6 - Question 71

In a journey, a bus travels at a speed of 40 km/hr for 4 hours, at 55 km/hr for 6 hours and at 60 km/hr for 2 hours. Find the average speed of the bus in the whole journey.

Detailed Solution for CISF Constable Mock Test - 6 - Question 71

As we know, distance = speed × time
Total distance travelled = 40 × 4 + 55 × 6 + 60 × 2 = 160 + 330 + 120 = 610 km
Total time taken = 4 + 6 + 2 = 12 hours.
∴ Average speed = total distance travelled/total time taken = 610/12 = 50.83 km/hr

CISF Constable Mock Test - 6 - Question 72

Directions: The following graph shows the world production of steel in 1920-1927. Study the graph and answer the question.

Q. The number of years during which the company has its production more than the average production during 1920-1927 is approximately:

Detailed Solution for CISF Constable Mock Test - 6 - Question 72

From the graph,
The total production = 71.3 + 43.51 + 67.66 + 76.23 + 77.23 + 88.93 + 91.75 + 100.17 = 616.78 million tons.
Hence, the average production in 8 years = 616.78/8 = 77.09 million tons.
We can observe in the graph that in 4 years, the company has its production more than the average production during 1920-1927.

CISF Constable Mock Test - 6 - Question 73

Directions: The following graph shows the world production of steel in 1920-1927. Study the graph and answer the question.

Q. The difference of the production of steel in the year 1920 and 1921 is x% of 1925. Then the value of x is approximately:

Detailed Solution for CISF Constable Mock Test - 6 - Question 73

From the graph,
The difference of the production of steel in the year 1920 and 1921 = 71.3 – 43.52 = 27.79 million tons
The production in 1925 = 88.93 million tons
So, we can write,
88.93 × x% = 27.79
⇒ x% = 27.79/88.93
⇒ x = 31.24
∴ The value of x = 31.24.

CISF Constable Mock Test - 6 - Question 74

Directions: The following graph shows the world production of steel in 1920-1927. Study the graph and answer the question.

Q. The average production of steel over the 8 years is:

Detailed Solution for CISF Constable Mock Test - 6 - Question 74

From the graph,
The total production = 71.3 + 43.51 + 67.66 + 76.23 + 77.23 + 88.93 + 91.75 + 100.17 = 616.78 million tons.
Hence, the average production in 8 years = 616.78/8 = 77.09 million tons.

CISF Constable Mock Test - 6 - Question 75

Directions: The following graph shows the world production of steel in 1920-1927. Study the graph and answer the question.

Q. The production of steel in the year 1920 and 1926 is approximately how many times that of 1922 and 1923?

Detailed Solution for CISF Constable Mock Test - 6 - Question 75

From the graph,
The production of steel in the year 1922 and 1923 = (67.66 + 76.23) = 143.89 million tons
The production of steel in the year 1920 and 1926 = (71.3 + 91.75) = 163.05 million tons
Hence, the required answer = 163.05/143.89 = 1.133 ≈ 1.13
∴ The production of steel in the year 1920 and 1926 is approximately 1.13 that of 1922 and 1923.

CISF Constable Mock Test - 6 - Question 76

In the In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Q. Smoking could cause cancer (1)/ and that is why I keep on telling you (2)/ to quit it. (3)/ No error. (4)

Detailed Solution for CISF Constable Mock Test - 6 - Question 76

The correct option is option 1.
Instead of 'could', it should be 'can' because it is used to express ability or opportunity, to request or offer permission, and to show possibility or impossibility.

CISF Constable Mock Test - 6 - Question 77

In the In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Q. I could make the travel arrangements (1)/ as I am the one who is taking (2)/ you guys there tomorrow. (3)/ No error. (4)

Detailed Solution for CISF Constable Mock Test - 6 - Question 77

The correct option is option 1.
Instead of 'could', it should be 'shall' because it is used to indicate future action or suggestion and is most commonly used in sentences with 'I' or 'we'.

CISF Constable Mock Test - 6 - Question 78

In the In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Q. I knew that (1)/ she could be very successful in her career (2)/ as we all knew how hard she worked. (3)/ No error. (4)

Detailed Solution for CISF Constable Mock Test - 6 - Question 78

The correct option is option 2.
Instead of 'could', it should be 'would' because it is used to express habit, wish and create the past form of the modal verb "will” and conditional tense.

CISF Constable Mock Test - 6 - Question 79

In the In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Q. We would have to take the train (1)/ as we are (2)/ running 15 minutes late. (3)/ No error. (4)

Detailed Solution for CISF Constable Mock Test - 6 - Question 79

The correct option is option 1.
Instead of 'would', it should be 'will' because it is used to make predictions and with promises or voluntary actions that take place in the future.

CISF Constable Mock Test - 6 - Question 80

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Q. The doctor warned the patient against any (1./ further consumption of alcohol if he desired (2./ to get cured from the ailment and live a longing life. (3./ No error (4)

Detailed Solution for CISF Constable Mock Test - 6 - Question 80

The error is in 3). You get cured of a disease, not from.

CISF Constable Mock Test - 6 - Question 81

Select the phrase/clause that best completes the sentence.

Q. _________ my fellow employees. I would like to thank the management for the support they have given us in organizing the event.

Detailed Solution for CISF Constable Mock Test - 6 - Question 81

The word 'behalf' is always preceded by 'on' and there is no need of any article 'the.' 'On behalf of' means 'done for another person's benefit or support.'
Thus option 4 is the correct answer.

CISF Constable Mock Test - 6 - Question 82

Select the phrase/clause that best completes the sentence.

Q. The motion to increase pay _________ was widely praised.

Detailed Solution for CISF Constable Mock Test - 6 - Question 82

The sentence is constructed in simple past tense thus option 3 fits here correctly.
The other options do not fit here.

CISF Constable Mock Test - 6 - Question 83

Fill in the blanks with the word that best completes the sentence.

Q. It is important for the president _________ seen as a threat.

Detailed Solution for CISF Constable Mock Test - 6 - Question 83

Only option 2 is grammatically fit to be placed in the blank.
It conveys the meaning that the president should not have been considered a threat.

CISF Constable Mock Test - 6 - Question 84

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Q. My grandmother brought me ________ best present ever.

Detailed Solution for CISF Constable Mock Test - 6 - Question 84

With superlative degree of adjectives (here = best), we always use 3) the.

CISF Constable Mock Test - 6 - Question 85

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Q. The principal ________ the audience for their visit that day.

Detailed Solution for CISF Constable Mock Test - 6 - Question 85

The audience come to witness some art or function. Principal => must be a school. He'd naturally thank the audience after their visit. Option 4) Thanked is the correct answer.

CISF Constable Mock Test - 6 - Question 86

A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given four alternatives.
A plant species that have outlived the dinosaurs, the Cycas circinalis, a ‘living fossil’ found only in the Western Ghats, faces the threat of extinction due to the over-harvesting of its leaves for commercial purposes.
While there are nine species of Cycas found across the country, almost all of which are classified as being endangered, the Cycas circinalis, found at altitudes between 1,500 and 1,800 meters, has traditionally been used by tribal communities for a variety of purposes. In the Nilgiris and other parts of the Western Ghats, where the plant is found, the seed is sometimes soaked in water (to remove a strong poison contained within) and ground into flour, after which it is eaten, while the seed is also said to be used in traditional, indigenous medicine.
However, over the last few decades, the leaves of the circinalis, which are used for ornamental purposes like for setting up ‘pandals’ have been harvested in bulk from the remaining plants, often leading to them becoming stunted and unable to reproduce and increase in number. With a single leaf costing as much as ₹ 25, the economic incentive to completely strip the plant of all its leaves in one harvest remains high for most people.
Shiny Miriam Rehel, Programme Co-ordinator for the Biodiversity Restoration Programme at Keystone Foundation, speaking to The Hindu, said that circinalis plants do not grow in large numbers in the wild, and the over-exploitation of the leaves from the plant has caused a further decline over the last few decades.
The Keystone Foundation has been trying to promote the conservation of the species by encouraging forest-dependent communities to sustainably harvest the leaves from the circinalis. “We collect the seeds from the wild and raise it at our nursery on the Keystone campus. We then encourage farmers and tribal communities to grow the plants near to their dwellings or land holdings,” said Ms Rehel, who added that the conservation of the species needs to be assured through working with local communities, creating awareness of sustainably harvesting the leaves and ensuring that the plant itself remains healthy.
Speaking of their importance, Ms Rehel said that not only the conservation of the endangered circinalis important to protect the livelihood of tribal communities but also for biodiversity.
She said that the circinalis is an ideal host plant for ants, cupid butterflies and bats, and added that their protection will be a vital aspect of protecting the ecology of the Western Ghats in the long run.

Q. Why Cycas circinalis faces the threat of extinction?

Detailed Solution for CISF Constable Mock Test - 6 - Question 86

It is given in the passage that the species Cycas Circinalis face the threat of extinction because the leaves are over-harvested than usual.Therefore, the correct option is option option 3.

CISF Constable Mock Test - 6 - Question 87

A passage is given with five questions following it. Read the passage carefully and select the best answer to each question out of the given four alternatives.
A plant species that have outlived the dinosaurs, the Cycas circinalis, a ‘living fossil’ found only in the Western Ghats, faces the threat of extinction due to the over-harvesting of its leaves for commercial purposes.
While there are nine species of Cycas found across the country, almost all of which are classified as being endangered, the Cycas circinalis, found at altitudes between 1,500 and 1,800 meters, has traditionally been used by tribal communities for a variety of purposes. In the Nilgiris and other parts of the Western Ghats, where the plant is found, the seed is sometimes soaked in water (to remove a strong poison contained within) and ground into flour, after which it is eaten, while the seed is also said to be used in traditional, indigenous medicine.
However, over the last few decades, the leaves of the circinalis, which are used for ornamental purposes like for setting up ‘pandals’ have been harvested in bulk from the remaining plants, often leading to them becoming stunted and unable to reproduce and increase in number. With a single leaf costing as much as ₹ 25, the economic incentive to completely strip the plant of all its leaves in one harvest remains high for most people.
Shiny Miriam Rehel, Programme Co-ordinator for the Biodiversity Restoration Programme at Keystone Foundation, speaking to The Hindu, said that circinalis plants do not grow in large numbers in the wild, and the over-exploitation of the leaves from the plant has caused a further decline over the last few decades.
The Keystone Foundation has been trying to promote the conservation of the species by encouraging forest-dependent communities to sustainably harvest the leaves from the circinalis. “We collect the seeds from the wild and raise it at our nursery on the Keystone campus. We then encourage farmers and tribal communities to grow the plants near to their dwellings or land holdings,” said Ms Rehel, who added that the conservation of the species needs to be assured through working with local communities, creating awareness of sustainably harvesting the leaves and ensuring that the plant itself remains healthy.
Speaking of their importance, Ms Rehel said that not only the conservation of the endangered circinalis important to protect the livelihood of tribal communities but also for biodiversity.
She said that the circinalis is an ideal host plant for ants, cupid butterflies and bats, and added that their protection will be a vital aspect of protecting the ecology of the Western Ghats in the long run.

Q. Which word in the passage means ‘native’?​

Detailed Solution for CISF Constable Mock Test - 6 - Question 87

The word “indigenous” in the passage means native. It is present in paragraph 2.