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ISRO Technician-B
Turner
ISRO Technician-B Turner 2019
36

ISRO Technician-B Turner Question Paper - 2019 (Set-1) with Answer Key

36) Trepanning is a method used to

generate threads

seal holes

generate holes

smoothen weld bead

Answer is:

generate holes

Explanation:

Trepanning is an operation of producing a hole by removing metal along the circumference of a hollow cutting tool.

ISRO Technician-B Turner Question Paper - 2019 (Set-1) with Answer Key

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37) The length of profile, selected for the purpose of making an individual measurement of surface texture is known as

Sampling length

Reference length

Standard length

Measured length

Answer is:

Sampling length

38) You have been given an aluminium block in which hole is to be drilled. From the tool manufacturer's cutting speed chart, 77 m/min speed to be used for aluminium. The r.p.m to be used for 10 mm drill bit is

2400 rpm

2450 rpm

2500 rpm

2550 rpm

Answer is:

2450 rpm

39) The approximate depth of thread for M8 x 1 is

0.62 mm

0.92 mm

1.00 mm

1/8 mm

Answer is:

0.62 mm

40) General formula for the length of the snap-head rivet is (t - thickness of the joint to be riveted and d - diameter of the rivet)

t + 0.5 d

t + d

t+1.5d

t + 2d

Answer is:

t+1.5d

ISRO Technician-B Turner Question Paper - 2019 (Set-1) with Answer Key

For more MCQ's Click Here

36) Trepanning is a method used to

generate holes

ISRO Technician-B Turner Question Paper - 2019 (Set-1) with Answer Key

Related ISRO Technician-B Turner Question Paper - 2019 (Set-1) with Answer Key

37) The length of profile, selected for the purpose of making an individual measurement of surface texture is known as

Sampling length

38) You have been given an aluminium block in which hole is to be drilled. From the tool manufacturer's cutting speed chart, 77 m/min speed to be used for aluminium. The r.p.m to be used for 10 mm drill bit is

2450 rpm

39) The approximate depth of thread for M8 x 1 is

0.62 mm

40) General formula for the length of the snap-head rivet is (t - thickness of the joint to be riveted and d - diameter of the rivet)

t+1.5d

ISRO Technician-B Turner Question Paper - 2019 (Set-1) with Answer Key