Mercury is used in barometers due to
A.its very low vapour pressure
B.its high density
C.its low compressibility
D.negligible capillary effect
Category: Engineeeing Mcqs
In which of the following case creep is an important consideration?
A.Exhaust valve of a diesel engine
B.Blades of a steam turbine
C.Flywheel of a petrol engine
D.Piston of an air compressor
E.Shaft of a centrifugal compressor
Thermal diffusivity is least for
A.Rubber
B.Lead
C.Aluminium
D.Iron
E.Mercury
One kg of octane is burnt by four alternative processes given below. In which case the work available will be maximum
A.When burnt in an open pan in atmosphere
B.When burnt in an internal combustion engine
C.When burnt in a fuel cell
D.When burnt in a reversible process
Moisture content of the moulding sand is commonly
A.1% – 4%
B.2% – 8%
C.5% – 15%
Which of the following is pesticide?
A.Endrin
B.Aldrin
C.Toxaphone
D.DDT
E.All of the above
Which of the following is not a property of the system?
A.Temperature
B.Pressure
C.Specific volume
D.Work
E.None of the above
A stick is
A.Automatic moulding tool
B.A device for measuring moisture content in foundry sand
C.A hand tool for repairing mould in foundry shop
D.A tool for mostening the sand
E.A tool for lifting the pattern from mould
Most of the suns energy results from
A.thermonuclear reactions
B.chemical reactions
C.gravity
D.none of the above
While dragging, the coefficient of friction (using steel plate) will be maximum in case of
A.anthracite
B.bituminous coal
C.coke
D.hog fuel, dry
