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RRB Group D Mock Test - 20 - RRB Group D / RPF Constable MCQ


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100 Questions MCQ Test RRB (Group D) - Mock Tests & Previous Year Papers - RRB Group D Mock Test - 20

RRB Group D Mock Test - 20 for RRB Group D / RPF Constable 2024 is part of RRB (Group D) - Mock Tests & Previous Year Papers preparation. The RRB Group D Mock Test - 20 questions and answers have been prepared according to the RRB Group D / RPF Constable exam syllabus.The RRB Group D Mock Test - 20 MCQs are made for RRB Group D / RPF Constable 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB Group D Mock Test - 20 below.
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RRB Group D Mock Test - 20 - Question 1

Namarata's father is now four times her age. In five yrs, he will be three times her age. In how many yrs, will he be twice her age?

Detailed Solution for RRB Group D Mock Test - 20 - Question 1
Let Namrata's age = x years
Let Namrata's father's age = y years
∴ y = 4x and y + 5 = 3(x + 5)
∴ x = 10, y = 10
Let y + K = 2(x + K)
(i.e., After K years, the father will be double of her age)
⇒ 40 + K = 2(10 + K) ⇒ K = 20
∴ After 20 years, Namrata's father will be double of her age.
RRB Group D Mock Test - 20 - Question 2

If the sum and the difference of two expression is 5x2-x-4 and x2+9x-10 respectively,then the expressions are

RRB Group D Mock Test - 20 - Question 3

Which state has least densely populated state with 17 persons per square kilometer?

RRB Group D Mock Test - 20 - Question 4

If the mean of a, b, c is M and ab + bc + ca = 0, then the mean of a2, b2, c2 is :

Detailed Solution for RRB Group D Mock Test - 20 - Question 4

We have : (a + b + c) 3 = M or (a + b + c) = 3M
Now, (a + b + c) x  (a + b + c) = (3M)2 = 9M2
a2 + b2 + c2 + 2(ab + bc + ca) = 9M2
a2 + b2 + c2 = 9M2
Required mean = 9 M2 /3 = 3M2

RRB Group D Mock Test - 20 - Question 5

Diameter of two circular plates are respectively 18cm and 80 cm. The diameter of the plate which has an area equal to the combined area of two given plates is

Detailed Solution for RRB Group D Mock Test - 20 - Question 5

Combined area of two plates = π (9)2 + π (40)2
= π (81 + 1600)
= 1681 π cm2.
Let R be the Radius of plate, whose area is combined area of two plates.
Area of plate = πR2 = 1681 π
⇒ R2 = 1681
⇒ R = 41 cm.
Diameter = 2 x 41 = 82 cm

RRB Group D Mock Test - 20 - Question 6
Pointing towards a girl, Divya says, "She is daughter of only son of my grandfather". How the girl is related to Divya?
RRB Group D Mock Test - 20 - Question 7
'India 2020-A Vision for the New Millennium' is a new book which has attracted the reader's attention. Who wrote this book?
RRB Group D Mock Test - 20 - Question 8
A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?
RRB Group D Mock Test - 20 - Question 9
Choose the analogous pair.
Scales : Justice
RRB Group D Mock Test - 20 - Question 10
Choose the number which is different from others.
RRB Group D Mock Test - 20 - Question 11
If 'gnr tag zog qmp' stands for 'Seoul Olympic Organising Committee'; hyto gnr emf' stands for 'summer Olympic games' and 'esm sdr hyto' stands for 'modern games history', what would be the code for 'summer' ?
RRB Group D Mock Test - 20 - Question 12
Nosegay : Flowers : Flogs :: ?
RRB Group D Mock Test - 20 - Question 13
What is the difference between the simple and the Compound Interest on Rs 400 for 2 yrs at 5% p.a?
RRB Group D Mock Test - 20 - Question 14
When did the Russian Revolution take place ?
RRB Group D Mock Test - 20 - Question 15
Which is the Currency of Kiribati?
RRB Group D Mock Test - 20 - Question 16
What is the minimum number of colours required to fill the spaces in the given diagram without any two adjacent spaces having the same colour?
RRB Group D Mock Test - 20 - Question 17
Which one of the pairs given below is NOT correctly matched?
RRB Group D Mock Test - 20 - Question 18
Recently the HRD Ministry released the All India Survey on Higher Education (AISHE) for the year 2016-17. According to the survey, the number of students enrolling for higher education in India saw ____ percent increase in 2016-17
RRB Group D Mock Test - 20 - Question 19
Under which article can the President suspend fundamental rights during emergency?
RRB Group D Mock Test - 20 - Question 20
According to the latest census conducted by the Reserve Bank of India (RBI), which country emerged as the largest source of FDI in India in 2016-17?
RRB Group D Mock Test - 20 - Question 21
A man starts from a point 'X' and walks 3 km southwards, then he turns left and walks 6 km. In which direction is he from the starting point?
Detailed Solution for RRB Group D Mock Test - 20 - Question 21
A man starts from X, walks 3 km south and reaches Y. At Y, he turns left, walks 6 km and reaches Z. It is clear from the figure that at Z the man is towards the south-east with respect to his starting position X
RRB Group D Mock Test - 20 - Question 22
Ms. Gaura Pant 'Shivani' who passed away recently was a famous
RRB Group D Mock Test - 20 - Question 23
A real-time operating system is most likely to be used for which of the following tasks
RRB Group D Mock Test - 20 - Question 24
Consider the following statements about Internet facility:
I. It serves as the largest on-line information system.
II. It provides the most dependable and latest mode for sending E-mail.
III. Recurring expenditure on communicating E-mail is very high.
IV. It is often misused and has triggered cyber-crimes.
Which of these statements are correct?
RRB Group D Mock Test - 20 - Question 25
Revealed preference theory was propounded by-
RRB Group D Mock Test - 20 - Question 26
Ajanta-Ellora caves are situated near
RRB Group D Mock Test - 20 - Question 27
The source of suns energy is the process of—
RRB Group D Mock Test - 20 - Question 28
Ocean currents are caused by
RRB Group D Mock Test - 20 - Question 29
The common source of entertainment during Ashoka's reign was
RRB Group D Mock Test - 20 - Question 30
The break even point is where-
RRB Group D Mock Test - 20 - Question 31
Which one of the following systems has maximum entropy?
RRB Group D Mock Test - 20 - Question 32
Which of the following is not a Social reform introduced by Lord William Bentick
RRB Group D Mock Test - 20 - Question 33
Which one of the following chambers of human heart receives the deoxygenated blood from the body?
RRB Group D Mock Test - 20 - Question 34
When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together?
RRB Group D Mock Test - 20 - Question 35
Which one of the following phenomena cannot be attributed to the refraction of light?
RRB Group D Mock Test - 20 - Question 36
Assertion [A] : "DNA Finger printing" has become a powerful tool to establish patemity and identity of criminals in rape and assault cases.
Reason [R] : Trace evidences such as hairs, saliva and dried semen are adequate for DNA analysis.
RRB Group D Mock Test - 20 - Question 37
The changing composition of the export trade is indicative of structural transformation of Indian economy in favour of modernisation. The best indicator of this trend is the :
RRB Group D Mock Test - 20 - Question 38
Which one of the following statements is not correct?
RRB Group D Mock Test - 20 - Question 39
"By weaving threads of physics, chemistry and biology into a rich tapestry, this remarkable scientist provided a unifying molecular view of the world. He touted the wounderful properties of Vitamin C first as a cure of common cold and later as a preventive agent against cancer." One of science's major figures of all time referred to above is
RRB Group D Mock Test - 20 - Question 40
"Metastasis" is the process by which
RRB Group D Mock Test - 20 - Question 41
The characteristic odour of garlic is due to
RRB Group D Mock Test - 20 - Question 42
Which of the following cell organelles play the most significant role in protein synthesis?
RRB Group D Mock Test - 20 - Question 43
One Astronomical Unit is the average distance between
RRB Group D Mock Test - 20 - Question 44
A triangle, no two of whose sides are equal, is called a
RRB Group D Mock Test - 20 - Question 45
In line with United States, which among the given countries has also filed a notice to withdraw its membership from the United Nations Educational, Scientific and Cultural Organization (UNESCO)?
RRB Group D Mock Test - 20 - Question 46

Find the missing character.

Detailed Solution for RRB Group D Mock Test - 20 - Question 46

In fig. (A), (3 x 3) + (6 x 5)  = 39.
In fig. (B), (4 x 4) + (5 x 7)   = 51.
∴ In fig. (C), missing number = (3 x 4)   + (5 x 5)   = 37.

RRB Group D Mock Test - 20 - Question 47
Totally how many member countries are there in United Nations Security Council?
RRB Group D Mock Test - 20 - Question 48
Who developed the telegraphic code?
RRB Group D Mock Test - 20 - Question 49
What will come in place of question mark (?) in the following series.
KDW, MGT, OJQ, ?
RRB Group D Mock Test - 20 - Question 50
Arrange the following in a meaningful order:
1. Reading
2. Composing
3. Writing
4. Printing
RRB Group D Mock Test - 20 - Question 51
In the given diagram, Circle A represents teachers who can teach physics, Circle B represents teachers who can teach chemistry and Circle C represents those who can teach Mathematics. Among the region marked p, q, r, .....

The one which represents teachers who can teach physics and mathematics but not chemistry, is
RRB Group D Mock Test - 20 - Question 52

If '×' means '÷', '÷' means '+', '+' means '-' and '-' means '×', then 2 - 50 + 40 × 10 ÷ 96 = ?

Detailed Solution for RRB Group D Mock Test - 20 - Question 52

2 × 50 - 40 ÷ 10 + 96
= 100 - 40 ÷ 10 + 96
= 100 - 4 + 96
= 196 - 4 = 192

RRB Group D Mock Test - 20 - Question 53
How many such pairs of letters are there in the word ATMOSPHERE which have as many letters between them in the word as in the English alphabet?
Detailed Solution for RRB Group D Mock Test - 20 - Question 53
RRB Group D Mock Test - 20 - Question 54
A mixture of 40 litres of milk and water contains 10% of water. How much water must be added to make the water 20% in the new mixtures.
RRB Group D Mock Test - 20 - Question 55
India’s first National Park for differently abled people has been inaugurated in which state?
RRB Group D Mock Test - 20 - Question 56
Name the state which has imposed complete ban on electronic cigarettes in the state with a jail term of up to 3 years on its violation
RRB Group D Mock Test - 20 - Question 57
In the set of three-digit numbers given below, first two digits of each number are interchanged. Which one among them will be in the middle if they are arranged in ascending order after the change?
230 422 328 516 138
Detailed Solution for RRB Group D Mock Test - 20 - Question 57
230 422 328 516 138
After Interchanging first two digits of each number
032, 224, 823, 615, 831
Arranging in ascending order
032, 224, 615, 823, 831
⇒ 615 is in the middle
RRB Group D Mock Test - 20 - Question 58
Which of the following numbers is a multiple of 11?
RRB Group D Mock Test - 20 - Question 59

M, P and Q jointly thought of engaging themselves in a business venture. It was agreed that M would invest Rs 6500 for 6 months, P Rs 8400 for 5 months and Q Rs 10,000 for 3 months. M was to be the working member of the group for which he was to receives 5% of the profits. The profit earned was Rs 7030.Calculate the share of Q in the profit.

Detailed Solution for RRB Group D Mock Test - 20 - Question 59

M, P, Q share the remaining profit of Rs 7,030 in the ratio 6500 x 6 : 8400 x 5 : 10000 x 3
i.e., 13 : 14 : 10
∴ Q's share = 14/37 x 7030 = Rs 2,660

RRB Group D Mock Test - 20 - Question 60
In a class of 40 students and 5 teachers, each student got sweets that are 15% of the total number of students and each teacher got sweets that are 20% of the total number of students. How many sweets were there?
RRB Group D Mock Test - 20 - Question 61
The actor-director Ananta Ojha died recently. He was veteran actor of which language?
RRB Group D Mock Test - 20 - Question 62
To which Profession does Ananta Ojha belongs to?
RRB Group D Mock Test - 20 - Question 63
A pipe can fill a cistern in 6 hrs. Due to a leak in its bottom, it is filled in 7 hrs. When the cistern is full, in how much time will it be emptied by the leak?
RRB Group D Mock Test - 20 - Question 64
An express train runs at an average speed of 100 kmph, stopping for 3 minutes after 75 km. A local train runs at a speed of 50 kmph, stopping for 1 minute after every 25 km. If the train began running at the same time, how many km did the local train run in the time it took the express train to run 600 km?
Detailed Solution for RRB Group D Mock Test - 20 - Question 64
While running for 600 km, the Express Train stopped 7 times, i.e. for 21 minute (3 minute each time)
Running time = 6 hours (@ 100 km/hr for 600 km).
∴ Total time taken by the express train = 6 hours 21 minutes
Now local train moves @ 50 km per hour, stops for one minute after every 25 km, i.e. after every half an hour.
∴ Local train's stopage time = 12 minutes
Tunning Time = 6 hours 9 minutes
In 6 hours 9 minutes, the local train will cover the distance of 307.5 km.
RRB Group D Mock Test - 20 - Question 65
Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.
RRB Group D Mock Test - 20 - Question 66
In a queue, Amrita is 10th from the front while Mukul is 25th from behind and Mamta is just in the middle of the two. If there be 50 persons in the queue, what position does Mamta occupy from the front ?
Detailed Solution for RRB Group D Mock Test - 20 - Question 66
Number of persons between Amrita and Mukul = 50 - (10 + 25) = 15.
Since Mamta lies in middle of these 15 persons
So Mamta`s position is 8th from Amrita i.e. 18th from the front.
RRB Group D Mock Test - 20 - Question 67

A sum of money is divided among 160 males and some females in the ratio 16:21. Individually each male gets Rs 4 and a female Rs 3. The number of females is

Detailed Solution for RRB Group D Mock Test - 20 - Question 67

Let number of females = F
Suppose 160 males get Rs 16k and F females get Rs 21k
∴ 160 x 4 = 16k
⇒ k = 40
∴ F females get Rs 840
∴ Number of females = 840/3 = 280

RRB Group D Mock Test - 20 - Question 68
Indian Navy has signed a Memorandum of Understanding (MoU) with which Port Trust, for increasing the berthing capacity of naval ships in the port?
RRB Group D Mock Test - 20 - Question 69
Which Sikh Guru was born at Patna?
RRB Group D Mock Test - 20 - Question 70
Fertility of soil can be improved by
RRB Group D Mock Test - 20 - Question 71
When a vehicle passes, TV reception gets distorted. This is because
RRB Group D Mock Test - 20 - Question 72
Arrange the three forms of iron in descending order of carbon contents and other impurities in them :
I. Wrought iron
II. Cast iron
III. Pig iron
RRB Group D Mock Test - 20 - Question 73
The American scientists have discovered new secrets about the milky way, we call galaxy. The secrets are :
RRB Group D Mock Test - 20 - Question 74
The gas which helps in burning is :
RRB Group D Mock Test - 20 - Question 75
The International Space Station jointly promoted by 16 nations, would cost Pound Sterling 1 million and would be completed by :
RRB Group D Mock Test - 20 - Question 76
Internet operations could transmit :
RRB Group D Mock Test - 20 - Question 77
An amount of money fetches simple interest of Rs 4,320 at the rate of 4% pa at the end of 6 yrs. What is the principal amount?
RRB Group D Mock Test - 20 - Question 78

Detailed Solution for RRB Group D Mock Test - 20 - Question 78

 

RRB Group D Mock Test - 20 - Question 79

 5004 ÷ 139 - 6 = ?

Detailed Solution for RRB Group D Mock Test - 20 - Question 79

5004 ÷ 139 - 6 = ?
⇒ 36 - 6 = 30

RRB Group D Mock Test - 20 - Question 80
The term 'Tee' is connected with
RRB Group D Mock Test - 20 - Question 81
Which Indian state has signed the Host City Contract with the Indian Olympic Association (IOA) to host the 39th National Games in 2022?
RRB Group D Mock Test - 20 - Question 82
Name the player to clinch the gold medal in 48 kg category at the National Women’s Boxing Championships held in Rohtak, Haryana
RRB Group D Mock Test - 20 - Question 83
Below is given statement followed by two conclusions numbered I and II. You have to consider the statement and the following conclusions and decide which of the conclusions is follows in the statement :
Statement :
Company 'X' had asked its employees to declare their income and assets but it has been strongly opposed by employees union and no employee is going to declare his income.
Conclusions :
I. The employees of the company X do not seem to have any additional income besides their salary.
II. The employees union wants all senior officers to declare their income first.
RRB Group D Mock Test - 20 - Question 84

A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is :

Detailed Solution for RRB Group D Mock Test - 20 - Question 84

Let speed of the car be x kmph.
Then, speed of the train = 150/100 x = 3/2 x kmph.

RRB Group D Mock Test - 20 - Question 85

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is :

Detailed Solution for RRB Group D Mock Test - 20 - Question 85

Let say Sakshi's efficiency is 100 and Tanya's is 125
⇒ 20 x 100 = 125 x Days
⇒ Days = 20 x 100 /125
⇒ Days = 16 days

RRB Group D Mock Test - 20 - Question 86

If A+B+C=180o, then [(tanA+tanB+tanC)/(tanA tanB tanC)]=

RRB Group D Mock Test - 20 - Question 87