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For the following questions answer them individually
Steel can be hardened quickly by ......... process
carburizing
cyaniding
induction hardening
None of these
................ has excellent resistance to acids.
Permalloy
Constantan
Hastelloy
Monel metal
Which of the following properties pertain to cast iron?
Resistance
Ductility
Wear resistance
Toughness
Ball bearing races are
turned
ground
nickel plated
lapped
A very soft whisper may have noise level of
about 10 db
about 30 db
about 40 db
about 100 db
During the machining operation
the chips experience stresses
the chips experience strains
the values of stresses and strains are always calculated for the conditions at the normal plane
the chips experience stresses and strains
The grinding wheelis considered better, if the grinding ratio is
maximum
very low
average
minimum
Jig bushes are
the parts ofa drill jig through which the cutting tools are operated and located
the locating devices usedin jigs along with the fixture
the operating bushes in a jig
the locating and clamping partsofa jig and fixture arrangement
The following type of gauge has gauging sections combined on one end
progressive gauge
fixed gauge
limit gauge
combination gauge
Single point thread cutting tool should ideally have
positive rake
zero rake
normal rake
negative rake
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