1
GATE ME 1992
MCQ (Single Correct Answer)
+1
-0.3
For resistance spot welding of $$1.5$$ $$mm$$ thick steel sheets, the current required is of the order
A
$$10$$ $$Amp$$
B
$$100$$ $$Amp$$
C
$$1000$$ $$Amp$$
D
$$10,000$$ $$Amp$$
2
GATE ME 1991
MCQ (Single Correct Answer)
+1
-0.3
For gas welding a particular job using a neutral oxy-acetylene flame the acetylene consumption was $$10$$ ltrs. The oxygen consumption from the cylinder in liters will be
A
$$5$$
B
$$10$$
C
$$15$$
D
$$20$$
3
GATE ME 1990
MCQ (Single Correct Answer)
+1
-0.3
Penetration is increased by
A
Increasing welding current and welding speed
B
Increasing welding current and decreasing welding speed
C
Decreasing welding current and welding spped
D
Decreasing welding current and increasing welding speed
4
GATE ME 1990
MCQ (Single Correct Answer)
+1
-0.3
At small variations of are length at operating conditions, the manual metal are welding transformer provides nearly
A
Constant power
B
Constant power factor
C
Constant voltage
D
Constant current
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