Least overall efficiency can be expected in which type of power plant?
A.Steam power plant
B.Diesel engine power plant
C.Gas turbine power plant
D.Nuclear power plant
E.Hydro-electric power plant
Category: Mechanical Engineering Mcqs
As per IS specifications the endurance test for engines is conducted for
A.100 hours
B.200 hours
C.300 hours
D.500 hours
E.1000 hours
A fan is being used under certain conditions. If the fan speed is doubled the power requirement will be
A.Unchanged
B.Double of the original
C.Four times
D.8 times
E.16 times
Steady rest is
A.An additional support provided for long jobs
B.Used while turning unsymmetrical objects
C.Used during thready cutting only
D.Used when a lathe is subject to vibrations
E.Used when a lathe is not provided with foundations
The angular acceleration of a flywheel decreases uniformly from 8 rad/sec2 to 2 rad sec2 in 6 sec at which time its angular velocity is 42 rad/sec. The initial angular velocity was
A.3 rad/sec
B.6 rad/sec
C.12 rad/sec
D.24 rad/sec
E.30 rad/sec
A compound pressure gauge measures
A.Compound pressures
B.Complex pressures
C.Variable pressures
D.Positive and negative pressures
E.Average pressure
A thermistor is a
A.Thermo-couple
B.Thermometer
C.Thermal resistance
D.Thermal insulation
E.Miniature resistance
According to Amagat’s law
A.the sum of the volume friction is unity
B.there would be no volume change if the components are mixed while holding the temperature and pressure constant
C.all diatomic gases occupy double the volume of monoatomic gases for identical masses
D.None of the above
In the speed of rotation of earth decreases, the weight of the body will
A.Increase
B.Decrease
C.Remain unaltered
D.Depends on speed ratio
E.Cannot be ascertained on the basis the information given
