1. What is the effect of slip of the belt on the velocity ratio of belt drive ?

Decreases

Increases

May increase or decrease

Remains constant

Answer: Decreases

Explanation:


2. The frictional force which acts on the body when the body tends to move is known as ________ ?

normal reaction

limiting force of friction

gravitational force

None of these

Answer: limiting force of friction

Explanation:


3. The point in a beam at which the bending moment is maximum, the shear force at that point is ________ ?

maximum

minimum

zero

infinite

Answer: zero

Explanation:


4. A steel rod of original length 200mm and final length of 200.2 mm after application of an axial tensile load of 20 kN, what will be the strain developed in the rod ?

0.01

0.1

0.001

0.0001

Answer: 0.001

Explanation:


5. What is the effect on the Young’s modulus of a wire, if the radius of a wire subjected to a load P is doubled ?

Doubled

Halved

Become one-fourth

Remains unaffected

Answer: Remains unaffected

Explanation:


6. What is the equivalent torque (Nm) and bending moment (Nm) in a member subjected to the torque of magnitude 400 Nm and the bending moment of 300 Nm ?

500 and 400

400 and 300

400 and 500

300 and 400

Answer: 500 and 400

Explanation:


7. The shear force acting at the midpoint of the cantilever beam is 12 kN. What is the value of uniformly distributed load w (kN/m) acting over the entire length, if the span length of the beam is 4 m ?

2

4

6

8

Answer: 6

Explanation:


8. Choose the CORRECT material which belongs to the category of highly elastic ?

Brass

Steel

Glass

Rubber

Answer: Steel

Explanation:


9. Which of the following statement is INCORRECT ?

The value of the shear force at any point in the beam is equal to the slope of the bending moment curve.

The value of distributed load at any point in the beam is equal to the slope of the bending moment curve.

The value of distributed load at any point in the beam is equal to the slope of the shear force curve.

All option are correct

Answer: The value of distributed load at any point in the beam is equal to the slope of the bending moment curve.

Explanation:


10. A body is subjected to principle stresses at a point having values as 200 MPa, 150 MPa and 100 MPa respectively. What is the value of maximum shear stress (in MPa) ?

25

50

75

100

Answer: 50

Explanation: