# Wave trap is used to trap waves of?

9 views

Wave trap is used to trap waves of higher frequencies entering generator or transformer units.

## Related questions

Wave trap is used to trap waves of:  (A) Power frequencies (B) Higher frequencies entering generator or transformer units (C) All of the above (D) None of the above

In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address A) 0000 H B) 002C H C) 0024 H D) 0004 H

The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is (A) 2/3 (B) 5/6 (C) 7/8 (D) 6/7

The coefficient of reflection for current wave is

The velocity of travelling wave through a cable of relative permittivity 36 is

The equation of 50 Hz current sine wave having r.m.s. value of 60 A is?

What is the speed of an electromagnetic wave in water?

What are the electromagnetic waves used in remote control?

IDMT relays are used to protect the transformer against :  (A) Internal short -circuits (B) Open circuits (C) External short circuits (D) Oil leakage

Series reactors are used to

Instantaneous value of a sine wave voltage

Draw a labeled block diagram of sine wave generator and state function of each block.

Explain full wave bridged rectifier with the help of circuit diagram and input output waveform.

A relay used for protection of motors against overload is :  (A) Impedance relay (B) Electromagnetic attraction type (C) Thermal relay (D) Buchholz's relay

Auto reclosing is used in case of

A negative sequence relay is used for protection of  (1) Generator (3) Motor (2) Transformer (4) Long Transmission lines

Form factor for a sine wave is?

For a sine wave with peak value Imax the r.m.s. value is?

How fast is an electromagnetic wave?

what is mean by sine wave?

Regulating-transformers are used in power systems for control of

Explain three phase half wave controller or three phase unidirectional controller.

Explain three phase full wave controller.

Which countries are using wave energy?

Light triggering is mainly used in

Earthing switch is used for?  (A) Measuring of safety voltage (B) Protection of equipment from ground faults (C) Discharging residual energies (D) All of the above

The material used in liquid fuses is  (1) SF6 (3) carbon tetra chloride (2) distilled water (4) transformer oil

ln a minimum oil circuit breaker the oil is used

Surge absorbers are used for protection against

A _________ is used to measure the stator % winding temperature of the generator.  (A) Thermocouple (B) Pyrometer (C) Resistance thermometer (D) Thermometer

The ALE line of an 8085 microprocessor is used to (A) latch the output of an I/O instruction into an external latch. (B) deactivate the chip-select signal from memory devices. (C) find the interrupt enable states of the TRAP interrupt. (D) latch the 8 bits of address lines AD7-AD0 into an external latch.