41.
The strainer is used in all types of pumps for
A
Filtering the liquids to be sucked
B
To protect pump, foreign material passes through the pump.
C
Both a and b
D
None of this
Loading practice questions
95 practice sets · Page 3 of 5
The strainer is used in all types of pumps for
Filtering the liquids to be sucked
To protect pump, foreign material passes through the pump.
Both a and b
None of this
The Steam generate in case of water tube boiler as compared to fire tube boiler is
Same
less
More
None of above
The statement that when any two bodies are in thermal equilibrium with third, they art also in thermal equilibrium with each other is
First law of thermodynamic
Zeroth law of thermodynamics
Second law of thermodynamic
None of these
The specific heat at constant pressure(Cp) of an ideal gas is
Equal to its specific heat at constant pressure
Cp < Cv
Cp>Cv
Cp = 2 Cv
The product of mass and acceleration due to gravity of the body is called.
Pressure
Force
Weight
None of this
The processes of Carrot cycle are
Two adiabatic and two constant volume
Two constant pressure and two constant volume
Two isothermal and two adiabatic
Two isothermal and two isentropic
The process of sublimation is found to occur in
Liquid
Solid
Solid 02
Air
The moving part of a centrifugal pump is called a
Impeller
Volute
Diffuser
Suction nozzle
The main function Of an automobile gearbox is
to reduce speed
to increase speed
to provide variable speeds
to increase power
The function of steam stop valve is
TO regulate flow Of steam from boiler to steam pipe
TO separate steam from water
TO collect steam from drum
TO provide safety of boiler
The function of ozone layer is
protects the earth from harmful effect of ultraviolet rays
increase the temperature of earth
increases in atmosphere
none of the above
The function of boiler is
To compressed steam
To generate steam at a desired pressure
To heat feed water
To blow out hot gases.
The following is the one of the characteristics of I.C. engine
Large in size
Cheaper fuel may be used
Starting is difficult
More efficient
The correct location of economizer is :
Between furnace and preheater
between forced draft fan and furnace
between airpreheater and chimney
near the superheater
The compression ratio for the diesel engine is approximately in the following range
5:1 to 10:1
11:1 to 20:1
12:1 to 15:1
10:1 to 12:1
The clutch ordinarily remains in disengaged condition when it is used for power transmission in:
Automobile
Machine tools
Crane
Elevator
The clearance volume in a compressor is provided
To increase volumetric efficiency
to reduce the work input
So that piston does no strike the cylinder head
To accommodate valves in the cylinder
The cam shaft speed of four stroke engine is
Double than crank shaft speed
Four times of crank shaft speed
Equal to crank shaft speed
Half of crank shaft speed
The air standard cycle on which the petrol engine work is
Otto cycle
Carrot cycle
Joule cycle
Dual cycle
The ability of a material to resist fracture due to high impact loads is called
strength
stiffness
toughness
brittleness