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ISRO Technician-B Fitter 2017
44

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

44) The taper in a taper pin reamer is

1 in 20

1 in 50

1 in 75

1 in 100

Answer is:

1 in 50

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

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

45) A hole is to be made on mild steel with a 12 mm diameter reamer. If the under size is 0.3 mm and if the oversize is 0.05mm, what will be the diameter of the drill for drilling the hole before reaming?

11.65

12.35

11.7

12.05

Answer is:

11.65

A hole is to be made on mild steel with a 12 mm diameter reamer. If the under size is 0.3 mm and if the oversize is 0.05mm, what will be the diameter of the drill for drilling the hole before reaming?

46) In oxy acetylene welding which gas is closed first to avoid back fire

Oxygen

Acetylene

Argon

Nitrogen

Answer is:

Acetylene

Explanation:

In oxy acetylene welding Acetylene gas is closed first to avoid back fire.

In oxy acetylene welding which gas is closed first to avoid back fire

47) In oxy-acetylene gas cutting the metal cutting is done by

High pressure oxygen

High pressure acetylene

High pressure nitrogen

High presure Argon

Answer is:

High pressure oxygen

48) Iron with 0.008 % to 0.025 % carbon is known as

Ferrite

Pearlite

Cementite

Hyper eutectoid

Answer is:

Ferrite

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

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