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Workshop Technology

Workshop Technology
The surface to be left unmachined is marked on the pattern by

Red colour
Blue colour
Yellow colour
Black colour

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Workshop Technology
The recrystallisation temperature of steel is

600°C
400°C
None of these
800°C

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Workshop Technology
Seam welding is best adopted for metal thickness ranging from

0.025 to 3 mm
5 to 8 mm
8 to 10 mm
3 to 5 mm

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Workshop Technology
In order to ram the sand harder at the back of the mould and softer on the pattern face, a ________ is used.

Squeezing machine
Stripper plate machine
Jolt machine
Sand slinger

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Workshop Technology
In forehand welding, the weld is made

From left to right
From right to left
Either from left to right or from right to left
First from left to right and then from right to left

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Workshop Technology
In backhand welding, the angle between the welding rod and the work is ___ as compared to forehand welding.

Same
More
Less
None of the listed here

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