65) The temperature obtained in a plasma jet torch employed for plasma arc welding operation is of the order of

26000 degree celsius

3000 degree celsius

10000 degree celsius

13000 degree Celsius

Answer is:

13000 degree Celsius

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

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66) Twin carbon arc welding refers to

Arc welding process using two arcs established using a single electrode

Arc welding process in which arc is established and maintained using two carbon electrodes held with a special holder

Two joints simultaneously welded using a single electrode

None of the above

Answer is:

Arc welding process in which arc is established and maintained using two carbon electrodes held with a special holder

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

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

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65) The temperature obtained in a plasma jet torch employed for plasma arc welding operation is of the order of

13000 degree Celsius

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

66) Twin carbon arc welding refers to

Arc welding process in which arc is established and maintained using two carbon electrodes held with a special holder

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

Atomic hydrogen welding

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

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