ISRO Technician-B Turner Question Paper - 2015 (Set - 1) with Answer Key

ISRO Technician-B Turner Question Paper - 2015 (Set - 1) with Answer Key

1) Hole has patches of poor surface finish. Which one of the following is the cause of this defect?

Answer is:

Insufficient coolant supply

Explanation:

.

2) Circumference of a circle is 66 mm find its diameter

Answer is:

21 mm

3) The included angle of the countersinking of a centre drill of type 'B' used for protecting the center hole is

Answer is:

Invalid Question

4) Choose the correct formula to find the dia of job d in mm if the cutting speed (V) in m/min and the revolution per minute (n) are given

Answer is:

d = (1000 xV)/(nxn)

5) High speed steelis an alloy of

Answer is:

Tungsten, chromium, vanadium