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CPT Technical Quiz - Mechanical Engineering

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

In the atmosphere, ultraviolet rays are absorbed by

a)

Oxygen

b)

Nitrogen

c)

Ozone

d)

Helium

2.

Oil rises up the wick in a lamp because:

a)

oil is very light

b)

of the diffusion of oil through the wick

c)

of the surface tension phenomenon

d)

of the capillary action phenomenon

3.

Conversion of chemical energy into electrical energy occurs in:

a)

dynamos

b)

electric heaters

c)

battery

d)

atomic bombs

4.

‘Short-sight’ in human eye can be corrected by using proper:

a)

convex lens

b)

concave lens

c)

cylindrical lens

d)

bifocal lens

5.

A multimeter is used to measure:

a)

current

b)

voltage

c)

resistance

d)

All of the above

6.

Which of the following is a non-renewable source of energy?

a)

Biogas

b)

Solar

c)

Wind

d)

Coal

7.

Which turbine is also called as the propeller turbine?

a)

Kaplan turbine

b)

Francis turbine

c)

Pelton wheel

d)

Thompson turbine

8.

Which of the following is not a property of a thermodynamic system?

a)

Internal energy

b)

Heat

c)

Pressure

d)

Temperature

9.

In a shaper machine, the mechanism for tool feed is

a)

Geneva mechanism

b)

Ratchet and pawl mechanism

c)

Ward-Leonard system

d)

Whitworth mechanism

10.

Ratio of shear stress and shear strain is called

a)

Modulus of rigidity

b)

Poisson’s ratio

c)

Elasticity coefficient

d)

Safety Coefficient

11.

The property of a material by virtue of which a body returns to its original shape after removal of the load is called _____.

a)

Plasticity

b)

Elasticity

c)

Ductility

d)

Malleability

12.

If the shear force acting at every section of a beam is of the same magnitude and of the same direction, then it represents

a)

Simply supported beam with point load at centre

b)

Overhung beam having equal point loads acting in the same direction at the free ends

c)

Cantilever subjected to concentrated load at the free end

d)

Simply supported beam having point loads of equal magnitude and in same direction at equal distances from the supports.

13.

Efficiency of Carnot cycle is ______ where T1 T_{1\ } is the lowest temperature and T2T_2 is the highest temperature during the cycle.

a)

T1T2−1\frac{T_1}{T_2}-1

b)

T1T2\frac{T_1}{T_2}

c)

1−T1T21-\frac{T_1}{T_2}

d)

1+T1T21+\frac{T_1}{T_2}

14.

Which of the following is a symbol of the first-angle method of projection?

a)

b)

c)

d)

15.

Each interior angle of a regular hexagon is --------.

a)

90 °\degree

b)

108 °\degree

c)

120 °\degree

d)

150 °\degree

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