Machine Design - Interview Questions | Exam2Win

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121. The function of cutting oil when threading a pipe is to

A. provide cooling action

B. lubricate the dies

C. help remove chips

D. all of the above

E. none of the above.

Explanation:

122. A backing ring is used inside the pipe joint when making a

A. butt weld

B. fillet weld

C. sleeve weld

D. socket weld

E. tube weld.

Explanation:

123. The pci Tnissible stress for carbon steel under static loading is generally taken as

A. 2000-3000 kg/pm2

B. 3000-4000 kg/cm2

C. 4000-J500 kg/cm2

D. 7500-10,000 kg/cm2

E. 10,000-15,000 kg/cm2.

Explanation:

124. The strap end of a connecting rod of steam engine is joined by

A. big of cotter joint

B. sleeve and cotter joint

C. spigot socket cotter joint

D. knuckle joint

E. universal coupling.

Explanation:

125. Spring index is

A. ratio of coil diameter to wire diameter

B. load required to produce unit deflection

C. its capability of storing energy

D. indication of quality of spring

E. nothing.

Explanation: