A knee is a part of
A.Lathe
B.Shaper
C.Milling machine
D.Jig boring machine
E.Breaching machine
Category: Mechanical Engineering Mcqs
Gears for wrist watches are generally manufactured by
A.Pitcl, angle
B.Lead angle
C.Helix angle
D.Axial pitch angle
E.Pressure angle
Oil separator in a refrigeration cycle is installed
A.Before compressor
B.Between compressor and condenser
C.Between condenser and evaporator
D.Between condenser and expansion vlve
E.Could be installed anywhere
Module for gear is expressed in terms of
A.Number of teeth per unit diameter (mm)
B.Diameter (MM) per number of teeth
C.Millimeters
D.(mm)-1
E.None of the above
Heavy water is used in atomic power plants as
A.Fuel
B.Source of energy
C.Lubricant
D.Moderator
E.Viscous damping fluid
The piston of a steam engine moves in S.H.M. The crank rotates at 180 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 1 metre from the centre is
A.16.32 m/sec
B.8.16 m/sec
C.5.88 m/sec
D.8.88 m/sec
E.Zero
Rankine formula is valid upto slenderness ratio of
A.60
B.80
C.100
D.120
E.150
The advantage of exposed penstock is
A.Safety against sliding
B.Full exposure to external variation in temperature
C.Expansion joints necessary
D.Changes of water conveyed being frozen in severe cold climates
E.Longitudinal stresses may develop owing to anchorages
Over heating of a two stroke air cooled engine cannot be due to
A.Partly restricted exhaust system
B.Incorrect ignition or valve timing
C.Lack of cylinder jacket cooling water
D.Restricted air cleaner
E.Too lean fuel mixture
Contact ratio of gear should be
A.One
B.More than one
C.Less than one
D.Not defined
E.None of the above
