1
GATE PI 2003
MCQ (Single Correct Answer)
+1
-0.3
High speed electron beam welding is focused on the weld spot using
A
vacuum lens
B
inert gas lens
C
optical lens
D
magnetic lens
2
GATE PI 2003
MCQ (Single Correct Answer)
+1
-0.3
In resistance welding, heat is generated due to the resistance between
A
electrode and work piece
B
asperities between touching plates
C
two dissimilar metals being in contact
D
inter-atomic force s
3
GATE PI 2001
MCQ (Single Correct Answer)
+1
-0.3
Which of the following powders should be fed for effective oxy-fuel cutting of stainless steel
A
Steel
B
Aluminium
C
Copper
D
Ceramic
4
GATE PI 1995
True or False
+1
-0
The consumption of an oxy-acetylene flame for cutting of steel contains more oxygen
A
TRUE
B
FALSE
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