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Recent questions tagged factor

1 answer 7 views

Availability factor

asked Jul 6 in Wikipedia by Shimroz123
1 answer 35 views

Discuss how power factor tariff results into energy conservation.

asked Sep 29, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 29 views

Draw and explain bulk correction method for power factor & control.

asked Sep 29, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 20 views

State the incentives and penalties related with power factor tariff.

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 15 views

With a neat sketch explain working of 1 phase dynamometer type power factor meter.

asked Sep 6, 2018 by Shimroz123
1 answer 5 views

State the significance of power factor.

asked Sep 6, 2018 by Shimroz123
1 answer 9 views

Define ripple factor and PIV of diode.

asked Sep 5, 2018 by Shimroz123
1 answer 53 views

Define form factor and peak factor.

asked Aug 8, 2018 by Quiz
1 answer 19 views

The following formula is correct:  (A) Diversity factor =1 / Coincidence Factor  (B) Diversity factor =1 x Coincidence Factor  (C) Diversity factor =1 - Coincidence Factor  (D) All of the above

asked May 8, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

The following formula is correct:  (A) Load factor=Average load for a period/ Peak load for the same period  (B) Load factor=Average load for a period x Peak load for the same period  (C) Load factor=Average load for a period + Peak load for the same period  (D) All of the above

asked May 8, 2018 in Power system by Shimroz123
1 answer 24 views

A control system having unit damping factor will give  (1) Oscillatory response (2) Undamped response (3) Critically damped response (4) No response

asked May 1, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 19 views

Load factor is the  (1) Ratio of maximum load on the station to sum of consumer's maximum load.  (2) Ratio of average demand to maximum demand.  (3) Factor used for increasing load.  (4) Reciprocal of (1).

asked Apr 30, 2018 in Power system by Shimroz123
1 answer 27 views

A transformer has negative voltage regulation when its load power factor is   (1) Zero (2) Unity (3) Leading (4) Lagging

asked Apr 30, 2018 in Power system by Shimroz123
1 answer 20 views

The knowledge of diversity factor helps in computing  (1) Plant capacity (2) Average load (3) Units (kWh) generated (4) Peak demand

asked Apr 30, 2018 in Power system by Shimroz123
1 answer 17 views

The load duration curve for unity load factor will be of  (1) Rectangular shape (2) Triangular shape (3) L -shape (4) I -shape

asked Apr 30, 2018 in Power system by Shimroz123
1 answer 14 views

The power factor of dielectric :  (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 31 views

In order to have a lower cost of electrical energy generation the load factor  (1) and the diversity factor should be low (2) should be low but the diversity factor should be high (3) should be high but the diversity factor should be low (4) and the diversity factor both should be high

asked Apr 29, 2018 in Electric Power Generation by Shimroz123
1 answer 27 views

Power station having Load factor = 70%, capacity factor = 50%, used factor = 60%, maximum demand = 20MW then annual energy production is  (1) 122.8 GWh (2) 198.55 GWh (3) 128.2 GWh (4) 188.82 GWh

asked Apr 29, 2018 in Power system by Shimroz123
1 answer 24 views

In a synchronous generator delivering lagging power factor load  (1) the excitation emf leads terminal voltage by the power angle (2) the excitation emf lags terminal voltage by the power angle (3) excitation emf leads the terminal voltage by the power factor angle (4) excitation emf lags the terminal voltage by the power factor angle

asked Apr 29, 2018 in Electrical Machine by Shimroz123
1 answer 24 views

What is the power factor when a single phase watt meter operating on 200 V and 5 A for 5 hours makes 2016 revolutions and the meter constant in revolution is 420? A) 0.04 B) 1.04 C) 0.96 D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 29 views

What is crest factor (peak factor)? A) It is the ratio of the maximum amplitude to average value B) It is the ratio of the average amplitude and RMS value C) It is the ratio of the maximum amplitude to RMS value D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 24 views

Which of the following waveforms has the lowest form factor? A) Sine wave B) Square wave C) Sawtooth wave D) Triangle wave

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

The benefit of power factor correction in a power system is (A) lower power consumption (B) increased demand charge (C) reduced load carrying capabilities in existing lines (D) reduced voltage profile

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 16 views

The power factor angle and torque angle of a salient pole synchronous generator drawing a current of 1.0 pu from a lagging load are 45o and 15o, respectively. The direct axis and quadrature axis currents, respectively, are (A) 0.5 pu, 0.866 pu (B) 0.866 pu, 0.5 pu (C) 0.707 pu, 0.707 pu (D) 0.5 pu, 0.5 pu

asked Apr 28, 2018 in Electrical Machine by Shimroz123
1 answer 17 views

The damping factor of a particular system is unity, the system response will be

asked Apr 26, 2018 in Control System by Shimroz123
1 answer 47 views

The power factor of a D.C. circuit is always?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 40 views

The ratio of active power to apparent power is known as____ factor.

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 84 views

The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

Power factor of electric bulb is?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
2 answers 36 views

The power factor at resonance in R-L- C parallel circuit is?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 20 views

Power factor of the system is kept high?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 23 views

Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 18 views

Capacitors for power factor correction are rated in?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 10 views

Poor power factor?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 31 views

Power factor of an electrical circuit is equal to?

asked Mar 24, 2018 in Electrical Engineering by Shimroz123
2 answers 32 views

Form factor for a sine wave is?

asked Mar 24, 2018 in Electrical Engineering by Shimroz123
1 answer 22 views

In a 3-phase power measurement by two wattmeter method the reading of one of the wattmeter was zero. The power factor of the load must be?

asked Mar 21, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 133 views

In a 3-phase power measurement by two wattmeter method, both the watt meters had identical readings. The power factor of the load was?

asked Mar 21, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 27 views

A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because?

asked Mar 20, 2018 in Synchronous machine by Shimroz123

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