43) The following welding process is used to weld fastener to plates without drilling or punching holes?

Electro slag welding

Oxy-acetylene welding

Butt welding

Stud welding

Answer is:

Stud welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

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44) Acceptable protective clothing for a welder is made from

Heavyweight and synthetic (eg., nylon, polymer) material

Lightweight and synthetic (e.g., nylon, poly ster) material

Heavyweight and natural (e.g., wool, cotton) material

Lightweight and natural (e.g., wool, cotton) material

Answer is:

Heavyweight and natural (e.g., wool, cotton) material

45) which of the following is not true with respect to a LASER beam welding?

Process does not require a vacuum chamber

Highly thick sections can be welded

No harmful x-rays are produced during welding

Laser beams can be focused using optical lenses and mirrors

Answer is:

Highly thick sections can be welded

46) Which of the following welding process utilizes high frequency acoustic vibrations to generate heat and create a weld?

Ultrasonic welding

Percussion welding

Stud welding

Acoustic welding

Answer is:

Ultrasonic welding

47) Which of the following welding process is not generally employed for welding of plastics?

Ultrasonic welding

Gas welding

TIG welding

Friction welding

Answer is:

TIG welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

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43) The following welding process is used to weld fastener to plates without drilling or punching holes?

Stud welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

Related ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key

44) Acceptable protective clothing for a welder is made from

Heavyweight and natural (e.g., wool, cotton) material

45) which of the following is not true with respect to a LASER beam welding?

Highly thick sections can be welded

46) Which of the following welding process utilizes high frequency acoustic vibrations to generate heat and create a weld?

Ultrasonic welding

47) Which of the following welding process is not generally employed for welding of plastics?

TIG welding

ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key