The temperature, in degrees celsius, at which the colsius scale reading is numerically half the Fahrenheit scale reading is
A.20?C
B.42?C
C.80?C
D.160?C
Category: Engineeeing Mcqs
The purpose of the dynamo in an automobile is to
A.Supply electric power
B.Convert mechanical energy into electrical energy
C.Act as a reservoir of electrical energy
D.Continually recharge the battery
E.Partly convert engine power into electric power
Bleeding in steam turbine refers to
A.leakage of steam through bearings
B.leakage of steam through packings
C.purposely withdrawn steam for process application
D.purposely withdrawn for feed water heating
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
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
