51) The form of thread in a saw tooth thread is

Inclination of 1 Degree on one side and 30 Degree on the other side

Inclination of 3 Degree on one side and 30 Degree on the other side

Inclination of 5 Degree on one side and 60 Degree on the other side

Inclination of 3 Degree on one side and 29 Degree on the other side

Answer is:

Inclination of 3 Degree on one side and 30 Degree on the other side

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

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52) 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

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

11.65 mm

12.35 mm

10.70 mm

12.05 mm

Answer is:

11.65 mm

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

54) The side of a regular hexagon is 10 mm. What is the across flat to flat of the hexagon?

17.32

1.732

Answer is:

17.32

55) The process of dipping anodized parts in hot water is known as

Calorising

Galvanizing

Sealing

Electroplating

Answer is:

Sealing

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

For more MCQ's Click Here

51) The form of thread in a saw tooth thread is

Inclination of 3 Degree on one side and 30 Degree on the other side

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

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

52) The taper in a taper pin reamer is

1 in 50

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

11.65 mm

54) The side of a regular hexagon is 10 mm. What is the across flat to flat of the hexagon?

17.32

55) The process of dipping anodized parts in hot water is known as

Sealing

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