67) Which of the following welding process employs a Langmuir torch?

Atomic hydrogen welding

Laser beam welding

Tungsten inert gas welding

Electron beam welding

Answer is:

Atomic hydrogen welding

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

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68) In a plasma arc welding process, the plasma is generated by

Low frequency AC voltage

Low frequency AC current

High frequency AC voltage

High frequency AC current

Answer is:

High frequency AC current

69) Oranges were purchased at the rate of 100 for Rs. 150/- and sold at Rs.2/- per orange. If a profit of Rs.200/- was made, number of oranges sold is

200

400

800

600

Answer is:

400

70) Angle of a quadrilateral are in the ratio 3:2:3:4, then the largest angle is

120

180

Answer is:

120

71) Which of the following statement is not true with reference to a laser beam welding process?

The process uses amplified light energy as a source of welding

The power density of laser beam is much higher compared to an arc welding process

The process essentially requires a vacuum

Focusing of laser beam towards the joint is possible

Answer is:

The process essentially requires a vacuum

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

For more MCQ's Click Here

67) Which of the following welding process employs a Langmuir torch?

Atomic hydrogen welding

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

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

68) In a plasma arc welding process, the plasma is generated by

High frequency AC current

69) Oranges were purchased at the rate of 100 for Rs. 150/- and sold at Rs.2/- per orange. If a profit of Rs.200/- was made, number of oranges sold is

400

70) Angle of a quadrilateral are in the ratio 3:2:3:4, then the largest angle is

120

71) Which of the following statement is not true with reference to a laser beam welding process?

The process essentially requires a vacuum

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