Which motor is preferred for belt conveyors?
A.synchronous motor
B.wound rotor induction motor
C.double squirrel cage induction motor
D.None of the above
Category: Mechanical Engineering Mcqs
The process of zinc coating used extensively for protecting steel from atmospheric deterioration is known as
A.Anodizing
B.Colourizing
C.Pakerizing
D.Galvanizing
E.None of the above
In a Diesel engine, the temperature of gases under full load may be of the order of
A.100?C
B.150-200?C
C.200-300?C
D.500-550?C
E.900-1000?C
The cam follower generally used in automobiles is
A.Roller type
B.Knife edge type
C.Flat type
D.Spherical type
E.Mushroom type
An axial flow compressor has
A.larger blades at gas entry and smaller blades at exit
B.smaller blades at gas entry and larger blades at exit
C.identical dlades at exit as well as entry
D.size of blades remains same only angles changes
Coriolis component of acceleration is encountered in
A.Four bar mechanism
B.Mechanism of steam engine
C.Lower pair
D.Higher pair
E.Whit worth-quick-return motion
An iron sphere of mass 30 kg and an aluminium sphere of mass 10 kg, both having the same diameter are dropped vertically from a cliff. When they are 10 metrs from the ground, they have identical
A.Accelerations
B.Momenta
C.Kinetic energies
D.Potential energies
E.All of the above
Which of the following is a hard currency?
A.Takka
B.Dinar
C.Yen
D.Rival
Which of the following is the displacement type blow measuring device?
A.Reciprocating piston
B.Semi-rotary piston
C.Nutating disc
D.Helix type
E.Turbine
Air and other non-condensable gases (foul gases) get into a refrigeration system through
A.Decomposition of refrigerant in contact with impurities
B.Breakdown of oil
C.Under vacuum operation or during maintenance work
D.Corrosion
E.Any of the above
