RRB Group D Mock Test - 6 - RRB Group D / RPF Constable


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100 Questions MCQ Test RRB (Group D) - Mock Tests & Previous Year Papers - RRB Group D Mock Test - 6

RRB Group D Mock Test - 6 for RRB Group D / RPF Constable 2023 is part of RRB (Group D) - Mock Tests & Previous Year Papers preparation. The RRB Group D Mock Test - 6 questions and answers have been prepared according to the RRB Group D / RPF Constable exam syllabus.The RRB Group D Mock Test - 6 MCQs are made for RRB Group D / RPF Constable 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB Group D Mock Test - 6 below.
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RRB Group D Mock Test - 6 - Question 1

The ratio of the present ages of Sushma and Karishma is 6 : 7 respectively. The ratio of their ages 8 years hence would be 8 : 9 respectively. What would be the respective ratio of their ages after 12 years?

Detailed Solution for RRB Group D Mock Test - 6 - Question 1

Let the present ages of Sushama and Karishma be 6x and 7x respectively.

or 56x + 64 = 54x + 72
x = 8/2 = 4
Required ratio 

RRB Group D Mock Test - 6 - Question 2

The solution of the equation x-y = 0.9 and 11/2 (x+y)=1 is

Detailed Solution for RRB Group D Mock Test - 6 - Question 2

The given system of equation is
x - y = 0.9 = 9/10 ...(1)
and 11 /2(x + y) = 1
⇒ x + y = 11/2 ...(2)
Adding (1) and (2), we get
2x = 9/10 + 11/2
⇒ 2x = 9 + 55/10 = 64/10
⇒ x = 32/10 = 3.2
When x = 3.2, we get
3.2 - y = 0.9 (using(1))
⇒ y = 3.2 - 0.9 = 2.3
Thus, the solution of system of equation is x = 3.2 and y = 2.3

RRB Group D Mock Test - 6 - Question 3

Which state has the highest sex ratio?

RRB Group D Mock Test - 6 - Question 4
The average score of a cricketer for ten matches is 38.9 runs. If the average for the first six matches is 42, then find the average for the last four matches.
RRB Group D Mock Test - 6 - Question 5
Pointing towards a person in a photograph, Anjali said, "He is the only son of the father of my sister's brother." How is that person related to Anjali ?
RRB Group D Mock Test - 6 - Question 6

The ratio of two unequal sides of a rectangle is 1:2. If its perimeter is 24cm, then length of diagonal is

Detailed Solution for RRB Group D Mock Test - 6 - Question 6

Let the sides of rectangle are x and 2x respectively. Then
2(x + 2x) = 24
⇒ x = 4
∴ Sides are 4 and 8 respectively.
Then length of diagonal 

RRB Group D Mock Test - 6 - Question 7
Choose the analogous pair.
Food : Hungry
RRB Group D Mock Test - 6 - Question 8

A boat takes 6 hours to travel from place M to N downstream and back from N to M upstream. If the speed of the boat in still water is 4 km/hr., what is the distance between the two places?

Detailed Solution for RRB Group D Mock Test - 6 - Question 8

Total time = 6 hours
Speed of the boat in still water = 4 km/hr
Let the distance between M and N be D
and the speed of the stream be x


Since the speed of the stream (x) is not given, the distance D cannot be determined

RRB Group D Mock Test - 6 - Question 9
Choose the group of letters which is different from others.
RRB Group D Mock Test - 6 - Question 10
In a certain code, TOGETHER is written as RQEGRJCT. In the same code, PAROLE will be written as :
RRB Group D Mock Test - 6 - Question 11
If a sum of money placed at Compound Interest doubles itself in 5 yrs, then the same amount of money will be 8 times of itself in
RRB Group D Mock Test - 6 - Question 12
Rial is the currency of
RRB Group D Mock Test - 6 - Question 13
Which country's currency code is IRR?
RRB Group D Mock Test - 6 - Question 14
Who among the following is not the supporter of Pluralist theory ?
RRB Group D Mock Test - 6 - Question 15
Who has written the book titled 'Open Society and Its Enemies'?
RRB Group D Mock Test - 6 - Question 16
Suresh walks 5 km towards south of point A, turns to his right and walks 2 km, turns to his right and walks 5 km and then he turns to his left and covers a distance of 5 km. How far is he from the point A?
RRB Group D Mock Test - 6 - Question 17
Find the minimum number of straight lines required to make the given figure.
Detailed Solution for RRB Group D Mock Test - 6 - Question 17
The figure may be labelled as shown

The simplest squares are QVYU, VRWY, YWSX and UYXT i.e., 4 in number
The squares composed of four components each are IMYP, MJNY, YNKO, PYOL and QRST i.e., 4 in number
The squares composed of seven components each are AEYH, EBFY, YFCG and HYGD i.e., 4 in number
The only square composed of twelve components in MNOP
There is only one square i.e., IJKL composed of sixteen components
There is only one square i.e., EFGH composed of twenty-four components
There is only one square i.e., ABCD which is composed of twenty-eight components
Thus, there are 4 + 5 + 4 + 1 + 1 + 1 + 1 = 17
square in the given figure
RRB Group D Mock Test - 6 - Question 18
What is the expected growth rate of India’s GDP for the year 2018-19 according to the latest HSBC report?
RRB Group D Mock Test - 6 - Question 19
What is the new foreign direct investment (FDI) limit allowed by the Union government in single-brand retail trading and construction development?
RRB Group D Mock Test - 6 - Question 20
What is common between Kutty,shankar,Laxman and Sudhir Dar?
RRB Group D Mock Test - 6 - Question 21
Where is the ‘National Remote Sensing Agency’ situated?
RRB Group D Mock Test - 6 - Question 22
HTML provides a set of
RRB Group D Mock Test - 6 - Question 23
A web site address is a unique name that identifies a specific _____on the web .
RRB Group D Mock Test - 6 - Question 24
'Suvidha' fixed deposits scheme has been launched by:
RRB Group D Mock Test - 6 - Question 25
Which of the following pairs are wrong?
RRB Group D Mock Test - 6 - Question 26
Sampurna Gramin Rojgar Yojana has been launched from-
RRB Group D Mock Test - 6 - Question 27
Epicenter of an earthquake is a point associated with the
RRB Group D Mock Test - 6 - Question 28
Chandra Gupta Maurya was helped by Kautilya in establishing an empire because
RRB Group D Mock Test - 6 - Question 29
When was Harsha born
RRB Group D Mock Test - 6 - Question 30
The principal action of the enterokinase present in the human intestinal juice is to
RRB Group D Mock Test - 6 - Question 31
Which one of the following minerals occurs abundantly in the earth's crust?
RRB Group D Mock Test - 6 - Question 32
Deficiency of which one of the following causes knock-knee, bow legs and pigeon chest in children?
RRB Group D Mock Test - 6 - Question 33
YMCA means
RRB Group D Mock Test - 6 - Question 34

Two wires have their lengths, diameters and resistivities, all in the ratio of 1 : 2. If the resistance of the thinner wire is 10 ohms, the resistance of the thicker wire is

Detailed Solution for RRB Group D Mock Test - 6 - Question 34

Resistance is directly proportional to the length of the wire, its resistivity and inversely proportional to the cross-sectional area.
WIRE I
Let the length = L
Resistivity = R
Diameter = D
∴ Total Resistance ∝ L x R/ D2  
WIRE II
Length = 2L
Resistivity = 2R
Diameter = 2D
∴ Total Resistance = 2L x 2R / 2D x 2D = LR/D2  
∴ WIRE I : WIRE II = LR/D2 : LR/D2 = 1 : 1
i.e. Resistance of WIRE ZB is also 10Ω

RRB Group D Mock Test - 6 - Question 35
Consider the following statements:
1. If a persons looks at a coin which is in a bucket of water, the coin will appear to be closer than it really is.
2. If a person under water looks at a coin above, the water surface, the coin will appear to be at a higher level than it really is.
Which of the above statements is/are correct?
RRB Group D Mock Test - 6 - Question 36
Which one of the following is a mixed fertilizer ?
RRB Group D Mock Test - 6 - Question 37
Which one of the following hormones contains iodine?
RRB Group D Mock Test - 6 - Question 38
Water is a good solvent of ionic salts because
RRB Group D Mock Test - 6 - Question 39
Colbalt-60 is commonly used in radiation therapy because it emits
RRB Group D Mock Test - 6 - Question 40
Consider the following statements:
1. Light of longer wavelength is scattered much more than the light of shorter wavelength.
2. The speed of visible light in water is 0.95 times the speed in vaccum.
3. Radio waves are produced by rapidly oscillating electrical currents.
4. To detect the overspeeding vehicles, police use the Doppler effect of reflected short radio waves.
Which of these statements are correct?
RRB Group D Mock Test - 6 - Question 41
If a gas is compressed to half of its original volume at 27 deg C, to what temperature should it be heated to make it occupy its original volume?
RRB Group D Mock Test - 6 - Question 42
The orthocentre of a triangle divides the medians in the ratio :
RRB Group D Mock Test - 6 - Question 43
How much amount of financial assistance has been extended by the Government of India for the upgradation of Kankesanthurai (KKS) Harbour in Sri Lanka?
RRB Group D Mock Test - 6 - Question 44
India exchanged the list of nuclear installations and facilities with which country, simultaneously through diplomatic channels?
RRB Group D Mock Test - 6 - Question 45
Who invented the ball-point pen?
RRB Group D Mock Test - 6 - Question 46
How many such pairs of letters are there in the word DELIBERATE which have as many letters between them in the word as in the alphabet?
Detailed Solution for RRB Group D Mock Test - 6 - Question 46
1 - RAT - RST
2 - DE - DE
3 - ELIB - EDCB
4 - ETAREBIL - EFGHIJKL
RRB Group D Mock Test - 6 - Question 47
Find the missing character.
RRB Group D Mock Test - 6 - Question 48
What should come next in the following letter series?
Z X V T R P N L J Y W U S Q O
Detailed Solution for RRB Group D Mock Test - 6 - Question 48
RRB Group D Mock Test - 6 - Question 49
Arrange the words given below in a meaningful sequence.
1. Sentence 2. Chapter 3. Letter 4. Book 5. Word 6. Paragraph
RRB Group D Mock Test - 6 - Question 50

select the correct combination of mathematical signs to replace * sign to balance the given equation.
24*3*2*12*3

RRB Group D Mock Test - 6 - Question 51
If a milk vendor has mixed 3 litres of water with 15 litres of milk, then the quantity of pure milk in 1 litre of mixture will be
RRB Group D Mock Test - 6 - Question 52
Name the state which launched an e-governance policy to help public, government and commercial establishments avail all services through digital medium?
RRB Group D Mock Test - 6 - Question 53
After Sikkim, Which state was declared as the second state in the Northeast to be declared Open Defecation Free (ODF)?
RRB Group D Mock Test - 6 - Question 54
In the following question number-series is given in which one term is wrong. Find out the wrong term.
4, 11, 21, 34, 49, 69,91.
Detailed Solution for RRB Group D Mock Test - 6 - Question 54

Clearly, 49 is the wrong term that disturbs the pattern
RRB Group D Mock Test - 6 - Question 55
π is
RRB Group D Mock Test - 6 - Question 56
Arun, Kamal and Vinay invested Rs. 8000, Rs. 4000 and Rs. 8000 respectively in a business. Arun left after six months. If after eight months, there was a gain of Rs. 4005, then what will be the share of Kamal?
RRB Group D Mock Test - 6 - Question 57
If 45% of a number is 72. What is 60% of that number?
RRB Group D Mock Test - 6 - Question 58
Shrivallabh Vyas, who recently passed away belonged to which of the following Profession?
RRB Group D Mock Test - 6 - Question 59
Which of the following diagram best depicts Cousins, nephews and males?
RRB Group D Mock Test - 6 - Question 60
Name the veteran celebrity who has been selected for the highest French civilian honour, the Legion d’Honneur 2018
RRB Group D Mock Test - 6 - Question 61
20 buckets of water fill a tank when the capacity of each bucket is 13.5 litres. How many buckets will be required to fill the same tank if the capacity of each bucket is 9 litres?
RRB Group D Mock Test - 6 - Question 62
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 - 6 - Question 63
The cost of 3 chairs and 10 tables is Rs 9856. what is the cost of 6 chairs and 20 tables?
Detailed Solution for RRB Group D Mock Test - 6 - Question 63
Cost of 3 chairs 10 tables = Rs 9856
Multiplying each term by '2', we get
Cost of 6 chairs 20 tables = Rs 9856 � 2 = Rs 19712
RRB Group D Mock Test - 6 - Question 64

Two trains 100 metres and 120 metres long are running in the same direction with speeds of 72 km/hr and 54 km/hr. In how much time will the first train cross the second?

Detailed Solution for RRB Group D Mock Test - 6 - Question 64

Trains are moving in the same direction
So the relative speed with which the y pass each other = (72 - 54) km/hr = 18 km/hr
distance covered = sum of the lengths of trains
= 100 + 120 = 220m = 220/1000 km = 11/50 km
Required time = 11/50 x 1/18 x 3600 = 44 sec

RRB Group D Mock Test - 6 - Question 65
Mohan ranked sixteenth from the top and twenty ninth from the bottom among those who passed an examination. Six boys did not participate in the competition and five failed in it. How many boys were there in the class ?
Detailed Solution for RRB Group D Mock Test - 6 - Question 65
Number of students who participated
= 16 + 29 - 1 = 44
Total number of boys in class
= 44 + 6 + 5 = 55
RRB Group D Mock Test - 6 - Question 66

The third proportional to 20, 16 is

Detailed Solution for RRB Group D Mock Test - 6 - Question 66

Let the third propertional of 20 and 16 be x
Then 20, 16, x are in propertion
This means 20 : 16 = 16 : x
So, 20 x x = 16 x 16
x = 16 x 16 / 20 = 12.8

RRB Group D Mock Test - 6 - Question 67
Where was Lord Mahavira born?
RRB Group D Mock Test - 6 - Question 68
India’s first indigenous aircraft carrier named ___________, which is under construction is expected to be inducted into the Indian Navy by 2020
RRB Group D Mock Test - 6 - Question 69
Within how many days after hatching do the young chicks come out of eggs ?
RRB Group D Mock Test - 6 - Question 70
Put the following in the descending order of their ranges of wavelength :
1. Microwave
2. Ultraviolet
3. Infrared
4. Visible Rays
RRB Group D Mock Test - 6 - Question 71
Sodium vapour lamps are preferred over incandescent lamp because of
RRB Group D Mock Test - 6 - Question 72
The weight of an object would be minimum when it is placed
RRB Group D Mock Test - 6 - Question 73
The principal of working of periscope is based on
RRB Group D Mock Test - 6 - Question 74
The meteorologist uses only his eyes to measure which of the following ?
RRB Group D Mock Test - 6 - Question 75
Man is able to see both distant and near objects because
RRB Group D Mock Test - 6 - Question 76

A certain sum was put at a certain rate of interest for 3 yrs. Had it been put at 2% higher rate, it would have fetched Rs 72 more. Find the sum.

Detailed Solution for RRB Group D Mock Test - 6 - Question 76

At 2% more rate, the increase in SI for 3 years = Rs 72 (given)
So at 2% more rate the increase in SI for 1 year = 72/3 = Rs 24
i.e., Rs 24 is 2% of the invested sum
So 1% of the invested sum = 24/2 = 12
Therefore, the invested sum
= 12 x 100 = Rs 1200

RRB Group D Mock Test - 6 - Question 77

Detailed Solution for RRB Group D Mock Test - 6 - Question 77

RRB Group D Mock Test - 6 - Question 78

Detailed Solution for RRB Group D Mock Test - 6 - Question 78

RRB Group D Mock Test - 6 - Question 79
'Breast stroke' is a term associated with :
RRB Group D Mock Test - 6 - Question 80
The Sports Minister launched the three-stroke Khelo India logo recently in New Delhi at the Nehru Stadium. The logo has been designed by ________
RRB Group D Mock Test - 6 - Question 81