Tenacity is the property of materials in which they
A.Resist indentation
B.Resist rupture
C.Resist shearing
D.Resist deformation
E.None of the above
Category: Heat Engines Mcqs
Calorific value of methane gas can be determined by
A.Bomb calorimeter
B.Bunsen’s apparatus
C.Orsat’s apparatus
D.None of the above
Ignition quality of diesel fuel is expressed by
A.Octane number
B.Cetane number
C.Carbon percentage
D.Calorific value
E.None of the above
A certain gas occupies 2 cu-m at a temperature of 400?C. It receives heat at constant pressure till its temperature is doubled. The change in volume would be
A.3.8 cu-m
B.3.188 cu-m
C.0.038 cu-m
D.0.19 cu-m
E.0.019 cu-m
As the compression ratio increases the volumetric efficiency of air compressor
A.Increases
B.Decreases
C.Does not change
D.Unpredictable
E.None of the above
Starting motor in automobiles is generally
A.Induction motor
B.Squirrel cage motor
C.Synchronous motor
D.Series motor
E.Shunt motor
Anthydrous substance is
A.Free of hydrogen
B.Free of water specially water of crystallization
C.Free of humidity
D.Dry substance
E.Crystalline substance
In a four stroke engine if a valve opens 25? before B.D.C. and closes 10? after T.D.C. the valve should be
A.Inlet valve
B.Exhaust valve
C.Puppet valve
D.Spring valve
E.Cam valve
Which one of the following statements is incorrect:
A.Combustion is the processes of heat liberation
B.Combustion is a chemical reaction
C.Combustion is rapid oxidation
D.All of the above
E.None of the above
The boilers using lignite as fuel do not use
A.Underfeed stoker
B.Travelling grate stoker
C.Speader stoker
D.U-flame pulverized fuel burner
E.Horizontal burner, pulverized fuel
