human resource interview questions

Question 1:A taper provided on the pattern for its easy and clean withdrawl from the mould is known as

draft allowance

Question 2:The type of file used for a wood work is

rasp-cut file

Question 3: The accuracy of micrometers, calipers, dial indicators can be checked by a

slip gauge

Question 4:A zinc diffusion process is called

sherardizing

Question 5:In arc welding, the electric arc is produced between the work and the electrode by

contact resistance

Question 6:In a centrifugal casting method

no core is used

Question 7: The draft or taper allowance on casting is generally

1 to 2 mm/m

Question 8:Which of the following welding process uses non-consumable electrodes?

TIG welding

Question 9: In a bilateral system of tolerance, the tolerance is allowed on

both sides of the nominal size

Question 10:In a hot chamber die casting machine

non-ferrous alloys with low melting temperature are casted

Question 11:The chisel used for cutting key ways is

cape chisel

Question 12:The temperature at which the new grains are formed in the metal is called

recrystallisation temperature

Question 13:Thread rolling is restricted to

ductile materials

Question 14:In sheet metal blanking, shear is provided on punches and dies so that

press load is reduced

Question 15:In welding copper alloys with TIG arc welding

direct current with straight polarity is used

Explanation:

Direct current with straight polarity (DCEN) is used when TIG welding copper alloys, the electrode is positive and the workpiece is negative. This polarity is preferred when welding copper alloys because it creates a stable arc with a deep and concentrated heat at the point of contact between the electrode and the workpiece, which helps to achieve a consistent weld.

Workshop Technology interview questions