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Q1. | Poor power factor results in all of the following EXCEPT. |

A. | Overloading of transformers [Wrong Answer] |

B. | Overloading of altemators [Wrong Answer] |

C. | Reduction in power losses [Correct Answer] |

D. | Reduction in load handling capacity of electrical system [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :Arundeep Said on 2015-12-20 21:21:08power losses deacrease !! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ For 200 V r.m.s. value triangular wave, the peak voltage will be

200 V

222 V

282 V

346 V

⇒ When an alternating current passes through an ohmic resistance the electrical power converted into heat is

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True power

Reactive power

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⇒ The r.m.s. value of a half-wave rectified current is 100 A. Its value for full-wave rectification would be____ amperes.

141.4

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40/π

⇒ The best place to install a capacitor is

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Across the terminals of the inductive load

Far away from the inductive load

Any where

⇒ The product of apparent power and cosine of the phase angle between circuit voltage and current is

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Reactive power

Volt-amperes

Instantaneous power

⇒ Ohm is the unit of all of the following except

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⇒ Power factor of electric bulb is

Zero

Lagging

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Unity

⇒ At____ frequencies the parallel R-L circuit behaves as purely resistive.

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High

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⇒ The dual of a link is

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⇒ In a R-L-C series circuit if voltage V across the circuit is reduced to half the current I will change to

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⇒ In A.C. circuit the power curve is a sine wave having

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⇒ The r.m.s. value of pure cosine function is

0.5 of peak value

0.707 of peak value

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⇒ Inductance affects the direct current flow

Only at the time of turning off

Only at the time of turning on

At the time of turning on and off

At all the time of operation

⇒ In an A.C. circuit I sin Φ is called

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⇒ The ratio of active power to apparent power is known as ____ factor.

Demand

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⇒ For the same peak value which of the following wave will have the highest r.m.s. value ?

Square wave

Half wave rectified sine wave

Triangular wave

Sine wave

⇒ The ratio of the bandwidth to the resonance frequency is called the____ of the circuit.

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Susceptance

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Selectivity

⇒ The shunt element of prototype high pass filter is

Resistive

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Capacitive

Combination of L and C

⇒ A parallel resonant circuit can be used

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To reject a small band of frequencies

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⇒ The peak value of a sine wave is 200 V. Its average value is

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141.4V

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⇒ The time constant of a series R-C circuit is given by

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RC

^{2}

RC

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⇒ If resistance is 20 ω and inductance is 2H in a RL series circuit, then time constant of this circuit will be

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⇒ The r.m.s. value of a sine wave is 100A. Its peak value is

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L only

R only

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