Related Questions

The oxyacetylene gas used in gas welding produce a flame temperature of
A 1800°C
B 2100°C
C 2400°C
D 3200°C
Oxyacetylene reducing flame is used while carrying out welding on
A Alloy steel
B Grey cast iron
C Mild steel
D High carbon steel
If the flame of the welding torch is directed towards the progress of welding, then what will you call the welding technique?
A Forehand welding
B Flux cored ARC welding
C Electro slag welding
D Pulsed spray welding
Most of the oxyacetylene welding is done with
A Neutral flame
B Oxidizing flame
C Carburising flame
D All of these
The temperature of the inner luminous cone of neutral flame is about
A 1000°C
B 1250°C
C 2100°C
D 3200°C
Actual flame temperature is always lower than the adiabatic flame temperature, because there is
A No possibility of obtaining complete combustion at high temperature
B Always loss of heat from the flame
C Both A & B
D Neither A nor B
The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
In backhand welding, the angle between the welding rod and the work is ________ as compared to forehand welding.
A Same
B Less
C More
D None of these
In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.
A Same
B Less
C More
D None of these

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