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Workshop Technology

Workshop Technology
A casting defect which results in general enlargement of a casting is known as

Shift
Swell
Scab
Sand wash

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Workshop Technology
The teeth of hacksaw blade are bent

Alternately towards right and left and every third or fourth left straight
May be bent in any direction
Towards right
Towards left

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Workshop Technology
A pattern maker's shrinkage rule considers

All materials of the pattern
All pattern allowances
All materials to be cast
Only shrinkage allowance

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Workshop Technology
In arc welding, the electric arc is produced between the work and the electrode by

Contact resistance
Voltage
All of these
Flow of current

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Workshop Technology
Which of the following methods can be used for manufacturing 2 meter long seamless metallic tubes?

Extrusion and rolling
Extrusion
Rolling
Drawing

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Workshop Technology
The temperature at which the new grains are formed in the metal is called

Recrystallisation temperature
Eutectic temperature
Upper critical temperature
Lower critical temperature

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