Which of the following is non-linear circuit parameter

The type of feature afforded to auxiliaries vital to the operation of propelling equipment, where automatic restart after a voltage failure would not create hazard, which of the following termed is used to describe the process?

A hydrometer indicates specific gravity by comparing the.

Which of the listed devices is used to measure and convert it to an electrical signal?

A lead-acid battery may become hotter than normal during a charge if the.

A switchboard for an AC electrical system requires the use of which of the following devices?

What does the output voltage of a three-phase alternator regulates

Which one of the following is best described as the combinations of electrical disconnect switches and circuit breakers that are used to control, protect and isolate high-voltage electrical equipment?

Which of the following is not provided in a switchboard for an AC electrical distribution system?

Why is it necessary to measure bolted bus bar joint resistance?

The type of feature afforded to auxiliaries vital to the operation of propelling equipment, where automatic restart after a voltage failure would not create a hazard, which of the following termed is used to describe the process?

Which of the following statements describes the significance of ambient temperature in relation to the service life of electronic components?

In a circuit that is not energized, which of the listed instruments is used?

What do you call an instrument that used to measure the specific gravity of the electrolyte in a rechargeable battery?

To locate a grounded field coil in a synchronous motor, which of the instruments listed could be used?

The following are rating of circuit breaker except

The total heating surface of any steam generating unit is comprised of?

Which of the instruments listed is used to check insulation resistance?

An ideal voltage source should have

Which of the following is non-linear circuit parameter?

A material for good magnetic memory should have

Conductivity is analogous to

Alternating current circuits develop resistance, inductance and capacitance. The inductance of a coil is expressed in

The combined effect of inductive reactance, capacitive reactance, and resistance in an AC series circuit is known as

The current at which a magnetic-type overload relay tends to trip may be decreased by raising the plunger further into the magnetic circuit of the relay. This action.

A saturable-core reactor operates on the principle of controlling a load windings inductance by varying the core s

A variable shunt connected across the series field coils of a DC compound wound generator to permit a adjustment of the degree of compounding is called

In a series circuit which value will remain unchange at all places in the circuit?

An instrument which detects electric current is known as

Which of the following circuit element stores energy in the electromagnetic field?

The law that the induced e.m.f. Amd current always oppose the cause producing them is to

Which of the following circuit elements will oppose the change in circuit current?

The co-efficient of coupling between two air core coils depends on

Which circuit element(s) will oppose the change in circuit current

The opposition offered to the establishment of magnetic lines of force in a magmetic circuit.

Heating of conductor as a result of resistance in a distribution circuit causes a power loss is demonstrate as

A pure transducer utilizes?

Which component when defective will not produce DC voltage in the excitation system of an AC generator?

electric intensity at any point in an electric field is equal to the at that point

What do you call a direct current passing through a wire coiled around a soft iron core?

A generator is prevented from being motorized by the use of a/an

The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as

Protection against prolonged overload periods in a molded-case circuit breaker is provided by

Which solid AWG wire size has the smallest physical cross-sectional area?

Two resistors are said to be connected in series when

The control system pneumatic actuators can be mounted in the ballast tanks and adjusted with no need foe electricity, thus offering a lower-cost control approach

Silicon steel is used in electrical machines because it has

An open coil has

The superposition theorem is applicable to this

A device used in an electrical circuit to change alternating current to direct current, is known as a

The amount of voltage induced in the stator windings of a modern AC generator depend mainly on

What system supplies air primarily to the combustion control system and other pneumatic controllers

Which of the following problems will most likely occur if the starting winding of a split-phase induction motor failed to cutout once the motor was in continuous operation?

When a megohmmeter is used to test the winding insulation of a large motor, an initial dip of the pointer toward zero is caused by

The unit of magnetic flux is

The timer element found in a reverse power relay obtains it operating torque via

The freezing point of electrolyte in a fully charged lead-acid battery will be

The division of kilowatt load between two paralleled alternators is determine by the

Germanium semiconductor diodes are commonly used as

The frequency of an AC generator if the load is removed?

A cycloconverter (CCV) is a static power converter that

At a point is equal to thr negative potential gradient at that point

Which of the following statements is true concerning the operating characteristics of a squirrel-cage motor?

The power packs are started/stopped manually from control panel or from the electric starter cabinet. The power packs can be started in any sequence. . Maximum 2 following starts can be made, then minutes between each. The starts are controlled by the PLC, including starts from the electric starter cabinet.

The frequency of an AC generator if the load is removed?

Which of the following statement will affect he capacity value of a capacitor?

Regenerative feedback implies feedback with:

A capacitor is generally a

When a megohmmeter is used to test insulation, the gradual rise of the point reading as a result of continued cranking is caused by

If a DC generator was rotated in the wrong direction it would fail to come up to voltage because the

It is the ratio of effective value of the counter EMF in volts to the effective value of the current in amperes

System pressure is set by the potentiometer on the control panel, as a voltage input to the PLC. The PLC output is amplified by a proportional card controlling the proportional pressure control valve for the system pressure. The set pressure is automatically set to zero until one of the power packs has been loaded.

In the flow of cycle of single AC current past any given point in a circuit, the maximum current peak occurs.

The timer element found in a reverse power relay obtains it operating torque via

The feed pumps are started/stopped manually from control panel or from the electric starter cabinet. However, when initiating start of the first main power pack, of the feed pumps will automatically be started (high capacity mode) before the power pack is started.

Which of the following devices should be used to measure the temperature of a battery electrolyte?

What is the function of the interpoles installed in DC motors?

Electric intensity at any point in an electric field is equal to the at that point

What is an important factor in reducing DC motor commutator wear?

The main difference between a circuit containing low voltage protection and low voltage release is that the former contains

An air blower driven by an electric motor used to supply pressurized air into the combustion chamber is called

The unit of apparent power in a purely inductive circuit is called

The power packs are started/stopped manually from control panel or from the electric starter cabinet. The power packs can be started in any sequence. Maximum starts should be made during an hour.

Which of the following statement is true concerning all three-phase alternators?

Line losses in a distribution circuit are kept to a minimum by

On tank vessel with an electrically driven capstan the motor should be meggered periodically to test

The freezing point of electrolyte in a fully charged lead-acid battery will be

When the insulation values of a 440 volt feeder system drops below alarm level what component is opened to pinpoint to the operator location of the fault in the system?

Which of the following statements concerning the specific gravity of a battery electrolyte is true?