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For the following questions answer them individually
The chisels are generally made of ______ steel
High carbon high carbon
mild
medium carbon
dead mild
Heating elements are generally made of
Invar
Perminvar
White Metal
Nichrome
Large size bolt heads are made by
Hammering
Casting
Swaging
Upset-Forging
Oxygen cylinders are
cast iron cylinders
steel cylinders, welded structure
die cast
seamless steel cylinders
An accurate lathe in India is identified as indigenous in India
Mark I
Accurate I
Grade I
Precision I
The following casting method ID is usually used for the production of quality portion of the production component.
centrifugal casting Centrifugal
continuous casting
green sand casting
pressure die casting
The average frequency of sparks in electro discharge machining is
500 sparks/s
1000 sparks/s
5000 sparks/s
10000 sparks/s
The Vernier’s Calliper’s advantage over the micrometer is that
it can be used to make both inside and outside measurements over a range of sizes
is more accurate
is easier a nd quick to use
None of these
During soldering
arc is produced between solder iron and metal to be soldered
solder iron bit is red hot
joint area must be clean and close fitting
metal is heated from top as well as bottom
Investment casting is also known as
hot investment casting
lost wax casting
lost pattern casting
All of these
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