Mental Ability Test for RRB Material Superintendent Exam

Mental Ability Test  for RRB Material Superintendent Exam

Solved RRB Material Superintendent Question Paper

Mental Ability Test

1. If point A (7. k) be the vertex of an isosceles triangle ABC whose base Is BC and B = (2, 4) and C = (6, 10), what is the value of k?

(1)6

(2)3

(3)4

(4)5

Ans:-4

2. ABC is a triangle whose centroid is G. If the coordinates of A, B, C and G be respectively (—3, 1), (2, b), (a, —4) and (1. —1), find the value of a and b.

(1) a=4,b=0

 (2) a = 0, b = 4

 (3) a = 3, b = 2

(4) a = 5, b = 2

Ans:-1

3. The equation of a straight line is 2x - 3y +2 =0. What will be its slope?

(1)2/3

 (2) -2

(3) 2   

 (4) -2/3

Ans:-1

4. If a straight line passes through the point (4, 0), (0, 3) and (k, 1.5). find the value of k.

(1)3.33

(2)2

(3)0.33

(4)0.66

Ans:-2

5. If the numbers from 1 to 45 which are exactly divisible by 3 are arranged in an ascending order, minimum number being kept first, which number would come at the ninth place from the first?

(1)30

(2)21

(3) 24

(4) 27

Ans:-4

6. A husband and wife have six married sons and each of them has four children. The total number in the family is:

(1)40

(2)30

(3) 36

(4) 38

Ans:-4

7. The chemical formula of natural gas is:

(1) C3H8

(2) CH4

(3) C4H10

(4)CH6

Ans:-2

8. If acceleration due to gravity is 10m/sec2 the potential energy of body of mass. 1kg kept at a height of 5 metres is:

(1)50 joules

 (2) 500 Joules

(3) 100 joules

(4) l0joules

Ans:-1

9. An iron spherical ball having an external volume of  1gm/cu. cm Is dipped in a beaker containing water of specific gravity 10gm/ cu.cm. The weight of the ball would be reduced by:

(1) More data are required for making the calculation

(2)0.1gm

(3) 1 gm

 (4)10gm

Ans:-4

10. The symbol of Magnesium Mg. What does Mg2 + mean?

(1) Magnesium atom has acquired two protons

(2) Two atoms of magnesium have combined

(3) Magnesium atom has donated two outermost electrons to form a positive ion

(4) The, charged Mg ion attracts oppositely charged negative ions with twice as much intensity

Ans:-3

11. Which of the following is not an INCOTERM?

(1)FCA

 (2)CFR

(3)CPI

(4)FAS

Ans:-2

12. Which of the following is a selective inventory control?

(1) A.B.C.

(2) V.E.D.

(3) F.S.N.

 (4) All of these

Ans:-4

13. A barn is:

(1) A unit of area

(2) A unit of length

(3) A unit of time

(4) A unit of mass

Ans:-1

14. Which of the following is an electrostatic device?

(1) MOSFET

(2) NPN transistor

(3) PNP transistor

(4) None of the above

Ans:-4

15. Which item best describes a CAM Technology?

(1) Numerical control

(2) Documentation

(3) Drafting

(4) Geometric maddening.

Ans:-2

16.  Which of the following is a carrier’s receipt for Transportation?

(1)RR

 (2) AWB

(3) Bill of lading

 (4) All of the above

Ans:-4

17. Emphasis on criticality of an item is made in: .

(1) ABC analysis

(2) GOLF analysis

(3) VED analysis

(4) XYZ’analyis’

Ans:-3

18. A process which does not dissipate available energy is known as: -

(1) Adiabatic process -

(2) Isothermal process

(3) Ideal process

 (4) Frictionless process

Ans:-1

19. EOQ stands for

(1) Elements of quality control

(2) Elimination of quality inspection

(3) Economic order quantity

(4) None of the above

Ans:-4

20.A monkey climbs a pole 30 m high. It climbs 15 metres in one min  and then slides down 12 metres the next minute. How many minutes does it take to reach the top of the pole?

(1) 10

2) 12

(3)11

 (4)15

Ans:-3

21. Ratio   between  ages of Subhash , Prasád and Amar is 3:6: 7. If the difference between the ages of Prasad and Amar is 10 years, then what is the difference between the ages of Subhash and Prasad?

(1) 10 years

(3) 5 years

(2) 20 years

(4) 30 years

Ans:-4

22. The sum of two numbers is 2490. If 6.5% of one number is equal to 8.5% of the other, the greater number is:

1) 107

(2) 1380

(3)1411

(4) 1250

Ans:-3

23. Two -trains start from stations A and B and travel towards each other at-a speed of 50 kmph and 60 kmph respectively. At the time of their meeting, the second train had travelled 120 km more than the first. The distance between A and B  is: -

(1) 1320 1m

(2) 1440km

(3)1660 km

(4)600km

Ans:-1

24. From a cube of 8 m side a square hole of 3m side is hollowed from end to end. What is the volume of the remaining solid?

(1) 480 m3

 (2) 508 m3

(3) 520 m3

(4)440 m3

Ans:-4

25. A shopkeeper advertises for selling cloth at 4% loss. However, by using a false metre  scale he actually gains 25%. What is the actual length of the scale?

(1)80cm

(2)70cm

(3) 90cm

(4) 75 cm

Ans:-1