Machine Design - Interview Questions | Exam2Win

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1. The notch angle of the Izod impact test specimen is

A. 10�

B. 20�

C. 30�

D. 45�

E. 60�.

Explanation:

2. Stress concentration in static loading is more serious in

A. ductile materials

B. brittle materials

C. equally serious in both cases

D. depends on other factors

E. unpredictable.

Explanation:

3. Form coefficient of spring is

A. ratio of coil diameter to wire diameter

B. load required to produce unit deflection

C. its capability of storing energy

D. concerned With strength of wire of spring

E. nothing

Explanation:

4. Gear box is used

A. to produce torque

B. for speed reduction

C. to obtain variable speeds

D. to increase efficiency of system

E. to damp out vibrations.

Explanation:

5. When a nut is tightened by plapjng a washer below it, the bolt will be subjected to following type of loads

A. compression

B. tension

C. shear

D. combined loads

E. all of the above.

Explanation: