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SSC JE 2019 - 20 Welding & Metrology
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Question 1
Which of the following is not a type of solid state welding?
Question 2
Accuracy of setting a sine bar
Question 3
Which welding process is used to join two thick plates in one single pass?
Question 4
Which of the following shows the value of minimum interference?
Question 5
In arc welding, penetration is deeper for
Question 6
A shaft of size mm mate with hole of size mm then maximum possible clearance (in mm )in the assembly will be______.
Question 7
The temperature range for soldering process is:
Question 8
In order to have interference fit, it is essential that the lower limit of the shaft should be:
Question 9
What maximum output current can be drawn at 100% duty cycle from a welding power source rated at 500A at 60% duty cycle _________?
Question 10
In arc welding of a butt joint, the welding speed is to be selected such that highest cooling rate is achieved. Melting efficiency and heat transfer efficiency are 0.5 and 0.7, respectively. The area of the weld cross section is 5 mm2 and the unit energy required to melt the metal is 10 J/mm3. If the welding power is 2 kW, the welding speed in mm/s is closest to
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