RRB Group D Mock Test - 3

# RRB Group D Mock Test - 3 - Railways

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## 100 Questions MCQ Test - RRB Group D Mock Test - 3

RRB Group D Mock Test - 3 for Railways 2023 is part of Railways preparation. The RRB Group D Mock Test - 3 questions and answers have been prepared according to the Railways exam syllabus.The RRB Group D Mock Test - 3 MCQs are made for Railways 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB Group D Mock Test - 3 below.
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RRB Group D Mock Test - 3 - Question 1

### The average age of a man and his son is 33 years. The ratio of their ages is 8 : 3 respectively. What is the man's age?

Detailed Solution for RRB Group D Mock Test - 3 - Question 1

Total age of the father and the son
= 2 x 33
= 66 years
Ratio in Father's age and son's age
= 8 : 3
∴ Father's age = 8 x 66/8 + 3
= 48 years

RRB Group D Mock Test - 3 - Question 2

### If x + y = 6 and 3x - y = 4, then x - y is equal to

Detailed Solution for RRB Group D Mock Test - 3 - Question 2

x + y = 6
⇒ y = 6 - x
Now, 3x - y = 4
or 3x - (6 - x) = 4
or 3x - 6 + x = 4
or 4x = 10
or x = 5/2
∴ y = 6 - 5/2 = 7/2
∴ x - y = 5/2 - 7/2 = -1

RRB Group D Mock Test - 3 - Question 3

### Second most populous country in the world?

RRB Group D Mock Test - 3 - Question 4

The area of the circumcircle of the equilateral triangle whose one side lies on the diagonal of a square with side 4 cm is (use π = 3.14)

RRB Group D Mock Test - 3 - Question 5

Total expenses of a boarding house are partly fixed and partly varying linearly with the number of boarders. The average expenses per boarder is Rs. 700 when there are 25 boarders and Rs. 600 when there are 50 boarders. What is the average expense per boarder when there are 100 boarders?

Detailed Solution for RRB Group D Mock Test - 3 - Question 5

Let x be the fixed cost and y the variable cost
17500 = x + 25y .....(i)
30000 = x + 50y .....(ii)
Solving the equation (i) and (ii), we get
X = 5000, y = 50
Now if the average expense of 100 boarders be 'A'
Then 100 x A = 5000 + 500 x 100 ⇒ A = 550

RRB Group D Mock Test - 3 - Question 6
Pointing to Meena, Swarup says "she is the daughter of my grandfather's only child". How is Meena related to Swarup?
Detailed Solution for RRB Group D Mock Test - 3 - Question 6
Swarup's grandfather's only child means mother or father of Swarup.
Meena is daughter swarup's mother or father.
Therefore, Meena is sister of Swarup.
RRB Group D Mock Test - 3 - Question 7
A boat takes 9 hr to travel a distance upstream and takes 3 hr to travel the same distance downstream. If speed of the boat in still water is 4 km/hr, what is the velocity of the stream?
RRB Group D Mock Test - 3 - Question 8
'India of our dreams' is a book written by
RRB Group D Mock Test - 3 - Question 9
Choose the analogous pair.
Throw : Ball
RRB Group D Mock Test - 3 - Question 10
Complete the analogous pair.
Touch : Feel : : Greet : ?
RRB Group D Mock Test - 3 - Question 11
Choose the numeral pair which is different from others .
RRB Group D Mock Test - 3 - Question 12
If CABLE = 96372 and RISK - 8415, what word is made by 37265 ?
RRB Group D Mock Test - 3 - Question 13

In what time will Rs. 500 give Rs. 50 as interest at the rate of 5% per annum simple interest?

Detailed Solution for RRB Group D Mock Test - 3 - Question 13

SI = 50
P = 500
R = 5% pa.
SI = P x R x T/100
⇒ 50 = 50 x 5 x T/100
⇒ T = 2 years

RRB Group D Mock Test - 3 - Question 14
Among six members P, Q, R, G, S and M sitting along a circle facing centre.
(1) R is between G and P
(2) M is between P and S
What is the position of Q?
Detailed Solution for RRB Group D Mock Test - 3 - Question 14
In the question sitting directions are not given.
So positions of six members are either ,

So answer is :- cannot be determined.
RRB Group D Mock Test - 3 - Question 15
Find the minimum number of straight lines required to make the given figure.
RRB Group D Mock Test - 3 - Question 16
Which of the following is a warm ocean current?
RRB Group D Mock Test - 3 - Question 17
Three positions of a dice are shown below. When number 'one is the top, what no. will be at the bottom?

RRB Group D Mock Test - 3 - Question 18
Which is the Currency of Liberia?
RRB Group D Mock Test - 3 - Question 19
Which one of the following political theories advocates the withering away of the State?
RRB Group D Mock Test - 3 - Question 20
Which one of the following is true about a Presidential form of Government?
RRB Group D Mock Test - 3 - Question 21
Point B is 3 metres North of point A. Point C is 3 metres West of point B. point D is 5 metres South of point C. Point E is 7 metres East of point D. In which of the following directions is point E, with reference to point B ?
RRB Group D Mock Test - 3 - Question 22
How much loan amount has been sanctioned by NABARD to Odisha under the Rural Infrastructure Development Fund (RIDF) for irrigation and rural bridge projects of the states?
RRB Group D Mock Test - 3 - Question 23
According to the Central Statistics Office’s (CSO’s) latest estimate for India’s GDP growth rate, Indian economy is expected to grow at slower ____ percent in 2017-18 compared to the 7.1 per cent in 2016-17
RRB Group D Mock Test - 3 - Question 24
Who was known as the Iron Man of India?
RRB Group D Mock Test - 3 - Question 25
National Archives is located at?
RRB Group D Mock Test - 3 - Question 26
Communication between the operating system and a peripheral device such as a CD-ROM drive or a printer is facilitated by a(n):
RRB Group D Mock Test - 3 - Question 27
LAN means
RRB Group D Mock Test - 3 - Question 28
Disinvestment is-
RRB Group D Mock Test - 3 - Question 29
When prices are rising, which of the following steps should the Government adopt to bring about reduction in prices?
RRB Group D Mock Test - 3 - Question 30
Indian national congress was formed in?
RRB Group D Mock Test - 3 - Question 31
Which one of the following group of the States has correct descending order according to the literacy rate in India ?
RRB Group D Mock Test - 3 - Question 32
Lord Buddha preached his first sermon at:
RRB Group D Mock Test - 3 - Question 33
Ibn Batutah visited during the reign of
RRB Group D Mock Test - 3 - Question 34
Red root of sugarcane is caused by
RRB Group D Mock Test - 3 - Question 35
The circulation of ocean water occurs
RRB Group D Mock Test - 3 - Question 36
Consider the following statements regarding the waves associated with a moving electron (Matter waves) :
1. Matter waves can move with a velocity greater than that of light.
2. They can exhibit the phenomenon of interference.
3. They represent the probability of finding the electrons at different points in space.
4. They are elastic waves.
Which of these statements are correct?
RRB Group D Mock Test - 3 - Question 37
Nine Degree Channel separates
RRB Group D Mock Test - 3 - Question 38
Assertion A : The temperature of a metal wire rises when an electric current is passed through it.
Reason R : Collision of metal atoms with each other releases heat energy.
RRB Group D Mock Test - 3 - Question 39
Living organisms require at least 27 elements of which 15 are metals. Among these, those required in major quantities include
RRB Group D Mock Test - 3 - Question 40
Hybridoma technology is a new biotechnological approach for commercial production of
RRB Group D Mock Test - 3 - Question 41
Consider the following statements regarding a motor car battery:
1. The voltage is usually 12 V.
2. Electrolyte used is hydrochloric acid.
3. Electrodes are lead and copper.
4. Capacity is expressed in ampere-hour.
Which of the above statements are correct?
RRB Group D Mock Test - 3 - Question 42
Which one of the following has the highest fuel value?
RRB Group D Mock Test - 3 - Question 43
Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance?
RRB Group D Mock Test - 3 - Question 44
"The final Agent Orange raid in Vietnam took place in 1970 areas have begun to bloom again. But 19 years after the war's end, it seems plain that Agent Orange is killing and maiming human beings, something it never intended to do. The apparent toxic fallout from those clouds is a crop of human miseries including cancers, miscarriages and birth defects - that may persist for decades."
The offensive substance referred to in this quotationis
RRB Group D Mock Test - 3 - Question 45
Which one of the following is monogamous?
RRB Group D Mock Test - 3 - Question 46
According to a South China Morning Post (SCMP) report, China is planning to build its second foreign naval base in which country?
RRB Group D Mock Test - 3 - Question 47
Find the missing character.
RRB Group D Mock Test - 3 - Question 48
The UNESCO has recently included the “bird language”, prevalent in which country, in its list of Intangible Cultural Heritage citing it as an endangered part of world heritage?
RRB Group D Mock Test - 3 - Question 49
Alexander Fleming discovered
RRB Group D Mock Test - 3 - Question 50
In which of the given options, there is one letter leaving two letters of the alphabet in order after the letter placed at odd numbered places and leaving one letter of the alphabet in order after the letters positioned at even numbered letters.
RRB Group D Mock Test - 3 - Question 51
Arrange the words given below in a meaningful sequence.
1. Police 2. Punishment 3. Crime 4. Justice 5. Judgement
RRB Group D Mock Test - 3 - Question 52
What will come in place of the question mark (?) in the following series of English alphabet?
AE CG EI GK?
Detailed Solution for RRB Group D Mock Test - 3 - Question 52
RRB Group D Mock Test - 3 - Question 53

select the correct combination of mathematical signs to replace * sign to balance the given equation.
1*111*111*12321

Detailed Solution for RRB Group D Mock Test - 3 - Question 53

1 × 111 × 111 = 111 × 111 = 12321

RRB Group D Mock Test - 3 - Question 54
Rajive , a rice merchant , sells different varieties of rice . He mixes one varity of rice costing Rs.16 per kg with another varity of rice costing Rs.21 per kg. In what ratio should these two verities of rice be mixed such that the resultant mixture, upon selling at Rs. 21.45 per kg , will gives a 10% profit?
RRB Group D Mock Test - 3 - Question 55
Which State’s Chief Minister had directed the state irrigation department to implement the integrated solar-based micro irrigation scheme in all its districts?
RRB Group D Mock Test - 3 - Question 56
In an effort to empower persons with disabilities, the government of India has launched _______ accessible websites for Divyangs on January 19, 2017
RRB Group D Mock Test - 3 - Question 57
Complete the analogous pair.
64 : 8 :: 16 : 4 :: ? : 2
RRB Group D Mock Test - 3 - Question 58
In the following question number-series is given in which one term is wrong. Find out the wrong term.
5, 12, 19, 33, 47, 75, 104.
Detailed Solution for RRB Group D Mock Test - 3 - Question 58
5, 12, 19, 33, 47, 75, 104
The sequence is:
12 - 5 = 7, 19 - 12 = 7, 33 - 19 = 14, 47 - 33 = 14, 75 - 47 = 28 , 104 - 75 = 29
Hence, 104 does not fit in this series
RRB Group D Mock Test - 3 - Question 59
The square of a positive integer added to its fourth part is equal to 147. The number is
RRB Group D Mock Test - 3 - Question 60
Three friends X,Y and Z started a partnership business investing money in the ratio of 5 : 4 : 2, respectively for a period of 3 years. What is the amount received by X as the share in the total profit? (I) Total amount invested in the business is Rs. 22000 (II) profit was distributed after a period of 2 years (III) the average amount of profit earned per year is Rs. 2750
RRB Group D Mock Test - 3 - Question 61
Due to the increase in the price of edible oil in the market by 25% the consumption of this oil in a certain family is decreased by 12%. The expenditure of the family on edible oil is increased by
RRB Group D Mock Test - 3 - Question 62
NK Trikha who passed away recently was a veteran ___________
RRB Group D Mock Test - 3 - Question 63
Who among the following has recently been appointed as a Government interlocutor to hold talks with the United Liberation Front of Assam (ULFA)?
RRB Group D Mock Test - 3 - Question 64

One pipe can fill a tank 3 times as fast as another pipe. If the 2 pipes together can fill the tank in 36 minutes, the slower pipe alone will be able to fill the tank in

Detailed Solution for RRB Group D Mock Test - 3 - Question 64

Let the slower pipe alone fill the tank in x minutes
Then, faster pipe will fill in x/3 minutes
∴ 1/x + 3/x = 1/36
⇒ 4/x = 1/36
⇒ x = 144 min

RRB Group D Mock Test - 3 - Question 65

The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is :

Detailed Solution for RRB Group D Mock Test - 3 - Question 65

Speed = (45 x 5/18 )m/sec = ( 25/2 )m/sed
Time = 30 sec
Let the length of bridge be x metres
Then, 130 + x/30 = 25/2
⇒ 2(130 + x) = 750
⇒ x = 245m

RRB Group D Mock Test - 3 - Question 66
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 - 3 - Question 67

By selling an article at 2/5 of the marked price, there is a loss of 25%. The ratio of the marked price and the cost price of the article is:

Detailed Solution for RRB Group D Mock Test - 3 - Question 67

RRB Group D Mock Test - 3 - Question 68
In a row of trees, one tree is fifth from either end of the row. How many trees are there in the row?
Detailed Solution for RRB Group D Mock Test - 3 - Question 68
Rank from left end + Rank from right end - common Rank
⇒ 5 + 5 - 1 = 9
RRB Group D Mock Test - 3 - Question 69
Two numbers are in the ratio of 5:9 with the addition of 9 in each,their ratio becomes 16:27. Then one of the two numbers would be
RRB Group D Mock Test - 3 - Question 70
Who was the tenth and last Guru of Sikhs?
RRB Group D Mock Test - 3 - Question 71
Which country’s Navy successfully conducted a test fire of a naval cruise missile named ‘Harba’?
RRB Group D Mock Test - 3 - Question 72
Copper wries are generally used for electrical power transmission instead of iron wires because
RRB Group D Mock Test - 3 - Question 73
If a magnet is broken into two pieces, then
RRB Group D Mock Test - 3 - Question 74
Which of the following is a physical change?
RRB Group D Mock Test - 3 - Question 75
The main endocrine gland present in the human body is :