Pitch of gears is expressed by
A.Circular pitch
B.Diametral pitch
C.Module
D.Any of the above
E.None of the above
Category: Mechanical Engineering Mcqs
Pneumatic cranes are used where
A.electricity could be hazardous
B.advantage could be taken of existing air supply
C.either of (A) or (B) above
Alloy containing 70% nickel and 30% copper is known as
A.hastalloy
B.monel metal
C.N-c alloy
D.permalloy
When the trees are planted by road side, the average distance between two trees should be
A.2 to 3 metres
B.5 to 8 metres
C.10 to 15 metres
D.25 to 30 metres
Necking is
A.Machining a groove around cylindrical shaft
B.Drilling a hole in a plate
C.Hole drilled for riveting
D.Preparation of surface for brazing
E.Initial spot welding to position jobs
Klien’s construction gives a graphical construction for
A.Velocity polygon
B.Acceleration polygon
C.Four bar chain mechanism
D.Slider crank mechanism
E.Angular accelerations
Which of the following constituent has highest proportion in atmospheric air?
A.Nitrous oxide
B.Carbon monoxide
C.Helium
D.Neon
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
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%
