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Workshop Technology

Workshop Technology
the most preferred process for casting gas turbine blades is

Sand casting
Investment moulding
Shell moulding
Die casting

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Workshop Technology
When a pattern is made in three parts, the top part, is known as a

None of these
Cope
Cheek
Drag

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Workshop Technology
In a cold chamber die casting machine

Melting pot is an integral part of the machine
Low temperature and pressure is used
Melting pot is separate from the machine
Melting pot may have any location

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Workshop Technology
Green sand is a mixture of

30% sand and 70% clay
90% sand and 10% clay
50% sand and 50% clay
70% sand and 30% clay

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

Blue colour
Yellow colour
Black colour
Red colour

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Workshop Technology
The metal is subjected to mechanical working for

All of these
Controlling the direction of flow lines
Refining grain size
Reducing original block into desired shape

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