IAS Geology MCQ Paper Practice Quiz

IAS Geology MCQ Paper Practice Quiz

Geology Free Online Solved Questions

1. Beams of uniform strength vary in section so

that the

(a) Bending moment remains constant

(b) Deflection remains constant

(c) Unit stress remains constant

(d) All of the above

Answer. (c)

2. Two equal length beams are fixed at their ends.

One caries a distributed load and other caries same

load but concentrated in the middle. The ratio of

maximum deflections will be,

(a) 2

(b) 3

(c) 4

(d) 6

Answer. (a)

3. In a prisimatic member made of two materials so

joined that they deform equally under axial stress, the

unit stresses in two materials are

(a) Equal

(b) Proportional to their respective moduli of  elasticity

(c) Inversely proportional to their moduli of  elasticity

(d) Average of the sum of mouduli of elasticity

Answer. (b)

4. Moment of the inertia of an area will be least

with respect to

(a) Horizontal axis

(b) Vertical axis

(c) Bottom most axis

(d) Central axis

Answer. (d)

5. Ratio of shear modulus to ‘modulus of elasticity

if Poisson ’s ratio is 0.25 will be

(a) 0.4                         

(b) 0.25

(c) 4                             

(d) 0.5

Answer. (a)

6. The safe twisting moment for a compound shaft

is equal to the

(a) Maximum calculated value

(b) Minimum calculated value

(c) Mean value

(d) Extreme value

Answer. (b)

7. Torsional rigidity of shaft is expressed by

(a) Maximum torque it can transmit

(b) Number of cycles it undergoes before failure

(c) Elastic limit upto which it resists torsion, shear bending stresses

(d) Torque required to produce a twist of one radian per unit length of shaft

Answer. (d)

8. The yield point in fatigue loading 

 comparison to yield point in static loading is

(a) Same

(b) Lower

(c) Higher

(d) Half

Answer. (c)

9. Two solid shafts are made of same material and

have their diameters D and D/2. The ratio of

strength of bigger shaft to smaller one in torsion

is

(a) 4

(b) 2

(c) 8

(d) 16

Answer. (c)

10. Ratio of strength of solid and hollow shafts both

having outside diameter D and hollow shaft having inside.

diameter of D/2 in torsion

(a)    0.5

   (b) 0.75

(c) 15/16

   (d) 0.25

  Answer. (c)

11. Resilience of a material is considered when it is

subjected to

(a) Frequent heat treatment

(b) Fatigue

(c) Creep

(d) Shock loading

Answer. (d)

12. Total strain energy stored in a body is called

(a) Resilience

(b) Proof resilience

(c) Modulus of resilience

(d) Toughness

Answer. (a)

13. Five specimens of M.S. have their lengths and

diameters as l, d, 2l, 2d, 3l, 3d, 41, 4d and 51,

5d. Which of these will have largest extension

when the same tension is applied to all of them

(a) First

(b) Second

(c) Third

(d) Fourth

Answer. (a)

14. The value of Poisson’s ratio for cast iron is

(a) 0.1 to 0.2

(b) 0.23 to 0.27

(c) 0.25 to 0.33

(d) 0.4 to 0.6

Answer. (b)

15. Ratio of circumferential to longitudinal stress

developed in a thin shell under internal pressure p is

(a) 1

(b) 2

(c) 3

(d) 4

Answer. (b)

16. The maximum strain energy that can be stored

in a body is known as

(a) Impact energy

(b) Resilience

(c) Proof resilience

(d) Modulus of resilience

Answer. (c)

17. The property of a material which allows it to be

drawn into a smaller section is called

(a) Plasticity

(b) Ductility

(c) Elasticity

(d) Malleability

Answer. (b)

18. Percentage reduction in area in case of cast iron

when it is subjected to tensible test is

(a) 0%

(b) 10%

(c) 20%

(d) 25%

Answer. (a)

19. All perfect gases change in volume by   1/273th of

its original volume at 0°C for every 1 °C change

in temperature, when pressure remains constant.

This statement is

(a) Boyle’s law        

(b) Charles’s law

(c) Joule’s law         

(d) Gay Lussac law

ANSWER: (b)

20. According to Gay-Lussac’s law for perfect gases,

the absolute pressure of given mass varies

directly as

(a) Temperature

(b) Absolute temperature

(c) Absolute temperature, if volume remains constant.

(d) Product of absolute temperature and volume

ANSWER: (c)

21. The physical properties of a perfect gas are

Controlled by

(a) Pressure exerted by the gas

(b) Volume occupied by the gas

(c) Temperature of the gas

(d) All of the above

ANSWER: (d)

22. The temperature at which, the volume of a gas

becomes zero, is known as

(a) Absolute temperature

(b) Absolute zero temperature

(c) Absolute scale of temperature

(d) None of the above

ANSWER: (b)

23.Equal volume of all gases, at the same

temperature and pressure, contain equal number

of molecules. This is according to

(a) Charles’s law      

(b) Avagadro’s law

(c) Joule’s law         

(d) Gay Lussac law

ANSWER: (b)

   24. The difference between two specific heats of a

gas is equal to universal gas constant, when

(a) 1 gm of gas is heated

(b) 1 gm molecule of gas is heated

(c) 1 mole of gas is heated

(d) Any quantity of gas is heated.

ANSWER: (b)

25. The value of specific heat at constant pressure

as compared to that at constant volume is

(a) Less

(b) More

(c) Equal

(d) None of the above

ANSWER: (b)