The process of removing the burnt gases from the engine cylinder by the fresh charge coming into the cylinder from the crank-case, is known as
A.cleaning
B.priming
C.scavenging
D.none of the above
Category: Engineeeing Mcqs
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
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
The space-velocity of 2 hr-1 means
A.that every two hours one reactor volume of feed at specified conditions is being treated by the reactor
B.that two reactor volumes of feed at specified conditions are bing fed into the reactor per hour
C.that the actual reactor volume is double that of the optimum reactor volume
D.that one-half reactor volume of feed at specified conditions are being fed into the reactor.
India entered the nulear energy club as
A.fourth nation of the world
B.fifth nation of the world
C.sixth nation of the world
D.seventh nation of the world
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
All NH3 synthesis catalysts are based on iron oxide promoted by
A.SiO2
B.K2O (1-2%)
C.ZnO
D.V2O5
