Related Questions

If R is the third exercise in a routine which of the following cannot be the second exercise in that routine.
A Q
B S
C T
D U
If one day's routine is P,Q,W,T,U each of the following could be the next day's routine except
A W,T,S,P,U
B Q,R,V,T,U
C Q,T,V,W,S
D W,R,U,V,U
The leakage flux in a transformer depends upon
A load current
B load current and voltage
C load current, voltage and frequency
D load current, voltage, frequency and power factor
A single phase transformer has a maximum efficiency of 90% at full load and unity power factor. Efficiency at half load at the same power factor is -
A 87.8%
B 86.7%
C 88.26%
D 88.9%
Carnot cycle efficiency depends upon
A Properties of the medium/substance used
B Condition of engine
C Working condition
D Temperature range of operation
The efficiency of Diesel cycle depends upon
A Pressure ratio
B Cut-off ratio and compression ratio
C Temperature limits
D Compression ratio
Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the
A Two temperatures only
B Pressure of working fluid
C Mass of the working fluid
D Mass and pressure both of the working fluid
Economics of 'Solvay Process' depends upon the efficiency of
A Carbonating tower
B Ammonia recovery
C Ammonia recovery and size of the plant
D Ammoniation of salt solution
Dust collection efficiency of a cyclone separator depends upon its
A Diameter
B Inlet gas velocity
C Overall height
D All of the above
Which of the following is the main advantage of an auto-transformer over a two-winding transformer?
A Eddy losses are totally eliminated
B Copper losses are negligible
C Saving in winding material
D Hysteresis losses are reduced

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