Air consumption of a four-stroke diesel engine per rated BHP/hr will be
A.1 kg
B.5 – 7 kg
C.10 – 14 kg
D.15 kg
E.20 kg
Category: Engineeeing Mcqs
Which one is different from the others in press work operations?
A.Coining
B.Sizing
C.Flattening
D.Riveting
E.Punching
Maximum acceleration in above problem is
A.4?2/9 m/s2
B.3?2 m/s2
C.2?2/3 m/s2
D.?2/s m/s2
Which one of the following static characteristics of instruments is undesirable?
A.Accuracy
B.Reproducibility
C.Sensitivity
D.Drift
The process in which steel is heated 20? to 40?C below the lower critical temperature, held there for a prolonged period and then allowed to cool slowly in the furnace is known as
A.Normalising
B.Annealing
C.Spheroidising
D.Tempering
E.Austempering
Permeability of sand decreases as
A.permeability increases
B.moisture content increases
C.bonding content increases
D.all of the above
Carburizing is done
A.On steel with carbon percentage of 0.7%
B.On steels with carbon percentage of 0.5%
C.To improve hardenability of steel
D.By heating 200?C below critical temperature
E.To induce soft surface for machining on a hard core
Mercury is generally used in barometer because
A.Of higher density due to which the height of barmeter will be small
B.It has practically zero vapour pressure
C.It shines and can be easily read
D.It does not stick to the tube walls
E.All above
The process of passing the water through a thick layer of filtering media is known as
A.Sedimentation
B.Filtration
C.Disinfection
D.Purification
E.Putrification
The relation of the vapour pressure to the enthalpy of vaporization is expressed in
A.Energy equation
B.Van der Waal’s equation
C.Gas equation
D.Maxwell’s equation
E.Clausius Clapeyron equation
