A conductor has four identical strands arranged in diamond configuration. Find the GMR of the conductor in terms of the radius r of each strand.

which of these is not a simplex type of electronic communications?

one of the advantages of distributing the winding in alternators is to

Transient current in an RLC circuit is oscillatory when

In a circuit breaker the time duration from the instant of the fall to the extinction of arc is known as

efficiency is secondary consideration in case of

The capacitors of power factor correction are rated in terms of

Series capacitors are used to compensate for

Which power plant will require the highest initial cost?

Which of the following is NOT part of unbundling rate in your Meralco electric bill?

Receptacle outlet that is part of the luminaire or appliance, located within cabinets or cupboards shall be located not more than ____________ mm, above the floor.

The value of inductance per conductor in three phase line is ______ times the loop inductance for single phase lines.

For a series rlc circuit at resonance, the current amplitude is ___ for a fixed voltage amplitude and the power factor is ___

The customer is only charged or credited as the case may be, for the difference between the electricity supplied by the Distribution Utility and electricity it supplies to the Distribution Utility when the times it has excess VRE generation both of which are metered using either 2 uni-directional meters, one for import and one for export, or a single bi-directional meter. What do you call this scheme?

For which of the following sinusoids, the rms value and mean value is the same

the resistance of resistor 1 is twice of resistor 2. the two are connected in series and a potential differences maintain across a combination. what is the rate of thermal energy generation in resistor 1.

at very low frequencies a series RC circuit behaves as almost purely

In a shunt generator the voltage builds up till constrained by

the type of AC distribution system commonly used to supply both light and power is the

RA 7832 concerns on

is a reserve generating capacity which is connected to bus and is ready to take load

If the line frequency is 60 hz, the output frequency of a bridge rectifier is

Which of the following is not included in a basic communication circuit?

Which of the following shall NOT be excluded in the calculation of reliability standard indices of the distributor asset by the Philippine Distribution Code?

At leading power factor the armature flux in an alternator ___ the rotor of flux

This is the compact arrangement of switching devices

For an RL circuit, the power factor cannot be less than ___ or greater than ___

As load power factor of an alternator becomes more lagging, the value of generated voltage required to give rated terminal voltage

The under voltage relays are usually used for what protection of the electrical equipment

What is the classification of a turbine if the water moves along vanes toward the axis of rotation of the runner?

By increasing the transmission voltage double of its original value, the same power can be dispatch keeping the line loss

which of the following is used as input or output in flowchart

Guy wire is used in the construction of distribution lines for what purpose?

The process by which metallic parts are demagnetized is called

Which of the following insulators will be selected for high voltage applications?

What kind of device is diode

The commonly used light sensor in a modern fax machine is the

If there is an open circuit in the rotor of a squirrel cage induction motor

An ACSR conductor has n layers around its single center strand, the total number of strands will be

For proper parallel operation, ac polyphase alternators must have the same

With reference to armature windings wave windings are often called ___ windings

Breather mounted on transformer tank contains

In a commutator

In full wave rectification if the input frequency is 60 hz then output has a frequency of

_______ is the overall energy program formulated and updated yearly by the DOE, submitted to congress pursuant to RA 7638

the rms value of pure cosine function is

Overhead transmission lines are protected from lightning with the use of which? I. Overhead grounding conductor II. Surge arrestors

which of the following is the basic symbol used as a beginning or termination in logic diagram or flowchart

In a power plant a reserve generating capacity which is in operation but not in service is known as

If the load current and flux of a dc motor are held constant and voltage applied across its armature is increased by 10%, its speed will

Which of the following that uses water power is a limited storage power plant?

Equalizer bus is necessary for the parallel operation of the:

which of the following is used as a decision in logic diagram or flowchart

This is the rating of power circuit breakers used to be the basis in replacing its contacts

the viscosity of a fluid varies with

Which of the following is not a full duplex

Wooden transmission poles are protected from termites using

the purpose of insulating oil when used on power circuit breaker are the following, EXCEPT;

What is the purpose of reactor in short circuit?

ohm's law does not apply to

Centrifugal switch disconnects the auxiliary winding of the motor at about __ percent of synchronous speed

The material commonly used for insulation in high voltage cables is

what is the function of the surge tank in the hydro power plant

Wye-delta starting is equivalent to auto transformer starting with ___ tapping

Residual magnetism is necessary in a

the effect of corona is

Nuclear reactors generally employ

if a field of a dc shunt motor is open

The specific gravity of a lead acid cell is often used as a measure of its

As load power factor of an alternator becomes more leading, the value of generated voltage required to give rated terminal voltage

the condition of a liquid electrolyte is measured in terms of its

The reciprocal of permeability is

the hazards exist only during the period of time the ___ is there.

Present day capacitors which have high capacitance in small size use a diameter of

___ is a process by which atoms are split apart to release energy.

These days dc motors are widely used in

use in flowchart to indicate process or task

A standard candle emits a total luminous flux of ___ lumens

The effect of the dielectric is to

The series field of a short shunt compound dc generator is excited by ___ current

a good example of kinetic energy is provided by

The current carrying capacity of copper wire having twice diameter of another copper wire is

Inside a hollow spherical conductor

Which is not 180 degrees apart?

one advantage of disturbing the winding in alternator is to

In a synchronous machine when the router speed becomes more than the synchronous speed during hunting, the damping bars develop ___ torque

In a balance three phase wye connected circuit the line voltage are equal

A string efficiency of 100% means that

energy radiated continuously in the form of lighting waves

In the design of electrical power systems, the IEEE device numbers identify features of a protective device such as relay or circuit breaker. Which of the following is the device number for the ac circuit breaker?

In case of delta connected circuit, when one resistor is open power will be

If the length of the cable is doubled, its capacitance

The lighting load for a dwelling express in terms of a unit load in volt ampere per square meter must be at least

The voltage applied across the resistor was reduced by 50%. The power consumed by the resistor will be reduced by

in a loss-free RLC circuit, the transient current is

A two terminal pair of network of a transmission line can be represented by a I. Π network II. T network

Impurities in an electrolyte can cause an internal short circuit condition called

A space station with communication equipment that synchronizes with earth's orbit

The effect of series capacitor on a transmission line is to improve

is a reserve generating capacity which is available for service but is not in operation