Driving wheel hearings in automobiles are always
A.Bush bearing
B.Clad metal bearings
C.Anti-friction bearings
D.Either (A) or (B)
E.Either (B) or (C)
Category: Mechanical Engineering Mcqs
Which of the following material does not have hexagonal close packed structure?
A.Magnesium
B.Alpha iron
C.Titanium
D.Zinc
E.Cadmium
Slag inclusion in castings is a
A.Superficial defect
B.Internal defect
C.Moulding defect
D.Defect that can be removed by felting
E.Surface defect
In a centrifugal pump casing, the flow of water leaving the impeller is
A.Rectilinear flow
B.Centrifugal flow
C.Radial flow
D.Forced vortex motion
E.Free vortex motion
In case of reciprocating engine mechanism
A.The primary and secondary forces have same direction
B.The primary and secondary forces have same amplitude
C.The ratio of magnitude of primary forces of secondary forces is 2
D.The primary force has twoce the frequency of secondary force
A 30 ton press means
A.Gross weight of the press is 30 tons
B.The weight of die is 30 tons
C.The pressure exerted by slide is 30 tons
D.The flywheel of the press weighs 30 tons
E.The quantity of work produced in 8 hours will be 30 tons
Which of the following statement is false?
A.The density of milk decreases when cream is taken out of milk
B.A cyclist should move along a zig-zag path while ascending a steep hill
C.The linear velocity of bodies near the earth’s equator (due to rotation of earth) is more than the velocities of particles at the pole
D.The potential energy of a particle has the form Ep = k2x. The force acting on the particle is constant (k is a constant)
A pitot tube converts
A.Pressure head into velocity head
B.Velocity head into pressure head
C.Pressure head into temperature rise
D.Velocity head into temperature rise
E.None of the above
A gear cutter suitable for cutting 42 to 54 teeth will provide correct form
A.For any gear having teeth anywhere between 42 to 54
B.For only 42 teeth gear
C.For only 54 teeth gear
D.For only 48 teeth gear
International Prototype Meter is made of
A.Cast iron
B.Mild steel
C.Copper
D.Copper-nickel alloy
E.Platinum-iridium alloy
