In the fuel injection pump of a Diesel engine, the fuel injection timing is adjusted by adjusting the
A.Delivery valve
B.Rotation plunger
C.Lift of plunger
D.Pump camshaft
E.Tappets
Category: Mechanical Engineering Mcqs
For which of following material the value of Poissons ratio is more than 1?
A.Cork
B.Dead mild steel
C.Wood
D.Plastic
E.None of the above
Burr is
A.Unmachined portion of work piece
B.Boundary between finished and unifinished portion on a work piece
C.A marking or work piece to identify for correct position on a work piece
D.Burnt surface of a casting
E.Sharp edge remaining on the metal after curring, stamping or machining
The molecular volume of any perfect gas at 600 x 103 N/m3 and 27?C will be
A.2.085 m3/kg mol
B.4.17 m3/kg mol
C.41.7 m3/kg mol
D.85.3 m3/kg mol
E.47.7 m3/kg mol
The Young’s modulus of elasticity of a material is twice its modulus of rigidity. The Poisson’s ratio for the material will be
A.Zero
B.0.5
C.1
D.None of the above
Mercury is suitable for manometers because
A.It has high density
B.It can be easily seen in tube
C.It does not stick to tube walls
D.It moves easily
E.It is generally not used in manometers
The point of contraflexure occurs in
A.Simply supported beams only
B.Cantilever beams only
C.Continuous beam only
D.Overhanging beams only
E.All types of beams
Standing orders are certified by
A.Management
B.Workers
C.Workers union
D.Management and workers union
E.Certifying officer of government
Centrifugal blowers can supply
A.Large volumes of air at low pressures
B.Large volumes of air at high pressures
C.Small volumes of air at high pressures
D.Small volumes of air at low pressures
E.None of the above
The bad smell due to decomposition of sewage, on account of the action of bacteria, is mainly due to the presence of
A.Dead bacteria
B.Oxygen
C.Carbondioxide
D.Hydrogen sulphide
E.None of the above
