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ISRO
ISRO Technician-B
Fitter
ISRO Technician-B Fitter 2015
17

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

17) For TIG welding, commonly used gas is

Acetylene

Hydrogen

Argon

All of these

Answer is:

Argon

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

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

18) File is generally made of

MS

HCS

HSS

CI

Answer is:

HCS

Explanation:

High Carbon Steel

19) Tempering is done for

Increasing the hardness

Improving the strength

Increase toughness & reduce brittleness

To increase the machinability

Answer is:

Increase toughness & reduce brittleness

20) 16% of 550 is

98

68

88

48

Answer is:

88

21) The coolant used for machining cast iron is

Soluble oil

Kerosene

Soap water

None of these

Answer is:

None of these

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

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