ISRO Technician-B Fitter Question Paper - 2016 (Set

ISRO Technician-B Fitter Question Paper - 2016 (Set - 4) with Answer Key

36) The conical point of a lathe centre is

Answer is:

60 degree

37) Which is the lathe centre generally used for taper turning?

Answer is:

Ball centre

Explanation:

Ball centre is sometimes used for tapering by the "set-over tail stock" method. The standard centres cannot sit squarely in the center hole when the tail stock is set over.

Which is the lathe centre generally used for taper turning?

38) A multipoint cutting tool used to create external V thread in lathe

Answer is:

Chaser

39) For turning long tapers with a small taper angle, the method of taper turning employed is

Answer is:

offsetting the tail stock

40) The purpose of relief grooves is to

Answer is:

36) The conical point of a lathe centre is

60 degree

37) Which is the lathe centre generally used for taper turning?

Ball centre

38) A multipoint cutting tool used to create external V thread in lathe

Chaser

39) For turning long tapers with a small taper angle, the method of taper turning employed is

offsetting the tail stock

40) The purpose of relief grooves is to

Ensure contact between surface without any obstruction