Related Questions

The power factor (PF) indicates how much of the apparent power is true power.
A True
B False
The ratio of active power to apparent power is known as factor.
A Demand
B Load
C Power
D Form
The quality factor (Q) is the ratio of true power to apparent power.
A True
B False
A Circuit having power factor of 0.8 consumes 40W. The value of reactive power (VAR) is-
A 20
B 40
C 30
D 10
Despite its apparent ——, much of early Greek philosophical thought was actually marked by a kind of unconscious dogmatism that led to ——— assertions.
A Liberality — doctrinaire
B independence — autonomous
C intransigence — authoritative
D fundamentalism — arrogant
The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the __________ stress.
A Working
B Damaging
C Allowable
D None of these
If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on
A Too lean mixture
B Stoichiometric mixture
C Most economical mixture
D Too rich mixture
Apparent power is expressed in watts.
A True
B False
The product of apparent power and cosine of the phase angle between circuit voltage and current is
A True power
B Reactive power
C Volt-amperes
D Instantaneous power
A synchronous motor installed at the receiving end substation operates with such an excitation that it takes power at lagging power factor. Now if the applied voltage of the synchronous motor goes down, the power factor of the synchronous motor will
A remain same
B go down
C improve
D none of the above

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