51) Match the following non-conventional machining process with the corresponding material removal mechanisms P: Chemical Machining 1: Erosion Q: Electrochemical Machining

P-2, Q-3, R-4, S-1

P-2, Q-1, R-4, S-3

P-2, Q-4, R-3, S-1

P-3, Q-4, R-2, S-1

Answer is:

P-2, Q-3, R-4, S-1

ISRO Technician-B Turner Question Paper - 2017 (Set - 1) with Answer Key

For more MCQ's Click Here

52) As per ISO designation for carbide tool inserts - S P U N 12 03 08, 'N' represents

Class of chip breaker

Clearance angle

Basic shape

Tolerance class

Answer is:

Class of chip breaker

53) The operation done on riveted joints to improve leak tighness

Shot peening

Fullering

Bucking

Hammering

Answer is:

Fullering

54) Ra value ( in micro meter) corresponding to roughness grade symbol N7 is

1.6

0.8

3.2

2.3

Answer is:

1.6

55) Calcute the turning time required to finish cut a mild steel rod of diameter 40mm for 100mm length in one pass, on a lathe with feed rate of 0.2mm/revolution and at a speed of 100 rpm?

2 min

10 min

5 min

15 min

Answer is:

5 min

ISRO Technician-B Turner Question Paper - 2017 (Set - 1) with Answer Key

For more MCQ's Click Here

51) Match the following non-conventional machining process with the corresponding material removal mechanisms P: Chemical Machining 1: Erosion Q: Electrochemical Machining

P-2, Q-3, R-4, S-1

ISRO Technician-B Turner Question Paper - 2017 (Set - 1) with Answer Key

Related ISRO Technician-B Turner Question Paper - 2017 (Set - 1) with Answer Key

52) As per ISO designation for carbide tool inserts - S P U N 12 03 08, 'N' represents

Class of chip breaker

53) The operation done on riveted joints to improve leak tighness

Fullering

54) Ra value ( in micro meter) corresponding to roughness grade symbol N7 is

1.6

55) Calcute the turning time required to finish cut a mild steel rod of diameter 40mm for 100mm length in one pass, on a lathe with feed rate of 0.2mm/revolution and at a speed of 100 rpm?

5 min

ISRO Technician-B Turner Question Paper - 2017 (Set - 1) with Answer Key