AP GN Basic Electricity

The working voltage of a capacitor in an AC circuit should be

The term that describes the combined resistive forces in an AC circuit is

What is the opposition to the flow of AC produced by an electromagnetic field (EMF) with generated back voltage called?

Electrostatic fields are also known as

The basis for transformer operation in the use of alternating current is mutual

The opposition offered by a coil to the flow of alternating current (ignoring resistance) is called

What factors strengthen a coil inductor?

An increase in which of the following factors will cause an increase in the inductive reactance of a circuit?

Refer to Figure 1. When different rated capacitors are connected in series in a circuit, the total capacitance is

Capacitors are sometimes used in DC circuits to

In an AC circuit, the effective voltage is

The amount of electricity a capacitor can store is directly proportional to the

Refer to Figure 2. What is the total capacitance of a certain circuit containing three capacitors with capacitances of .02 microfarad, .05 microfarad, and .10 microfarad, respectively?

What is the total capacitance of a circuit containing three capacitors in parallel with capacitances of .02 microfarad, .05 microfarad, and .10 microfarad, respectively?

Convert farads to microfarads by

Convert farads to picofarads by

Unless otherwise specified, any values given for current or voltage in an AC circuit are assumed to be

When different rated capacitors are connected in parallel in a circuit, the total capacitance is

(Note:  C_{T =} C₁ + C₂ + C₃….)

When inductors are connected in series in a circuit, the total inductance (where the magnetic fields of each inductor do not affect the others) is

(Note: L_T = L₁ + L₂ + L₃….)

Refer to Figure 3. When more than two inductors of different inductances are connected in parallel in a circuit, the total inductance is

What is the total capacitance of a certain circuit containing three capacitors with capacitances of .25 microfarad, .03 microfarad, and .12 microfarad, respectively?

(Note:   C_T = C₁ + C₂ + C₃)

Which requires the most electrical power during operation?

How much power must a 24-volt generator furnish to a system which contains the following loads?

One motor (75 percent efficient) with a rating of 1/5 hp
Three position lights with a rating of 20 watts each
One heating element with a rating of 5 amp
One anti-collision light with a rating of 3 amp
(Note 1 horsepower = 746 watts)

A 12-volt electric motor has 1,000 watts input and 1 horsepower output. Maintaining the same efficiency, how much input power will a 24-volt, 1 horsepower electric motor require?

How many amperes will a 28-volt generator be required to supply to a circuit containing five lamps in parallel, three of which have a resistance of 6 ohms each and two of which have a resistance of 5 ohms each?

A 24-volt, 1 horsepower DC electric motor that is 80% efficient requires 932.5 watts. How much power will a 12-volt, 1 horsepower DC electric motor that is 75% efficient require?

The potential difference between two conductors which are insulated from each other is measured in

Which effect does not apply to the movement of electrons flowing in a conductor?

A 24-volt source is required to furnish 48 watts to a parallel circuit consisting of four resistors of equal value. What is the voltage drop across each resistor?

When calculating power in a reactive or inductive AC circuit, the true power is

Refer to Figure 4. How much power is being furnished to the circuit?

Refer to Figure 5. What is the impedance of an AC-series circuit consisting of an inductor with a reactance of 10 ohms, a capacitor with a reactance of 4 ohms, and a resistor with a resistance of 8 ohms?

Refer to Figure 6. If resistor R5 is disconnected at the junction of R4 and R3 as shown, what will the ohm-meter read?

Refer to Figure 7. If resistor R3 is disconnected at terminal D, what will the ohmmeter read?

Refer to Figure 8. With an ohmmeter connected into the circuit as shown, what will the ohmmeter read?

Refer to Figure 9. How many instruments (voltmeters and ammeters) are installed correctly?

The correct way to connect a test voltmeter in a circuit is:

What will a voltmeter read if properly connected across a closed switch in a circuit with electrical power on?

What does the letter Q symbolize when measuring electrical charge?

Which term means .001 ampere?

A cabin entry light of 10 watts and a dome light of 20 watts are connected in parallel to a 30-volt source. If the voltage across the 10-watt light is measured, it will be

A 14-ohm resistor is to be installed in a series circuit carrying .05 ampere. How much power will the resistor be required to dissipate?

.002 kV equals

Refer to Figure 10. What is the measured voltage of the series-parallel circuit between terminals A and B?

Refer to Figure 64. A 24-volt source is required to furnish 48 watts to a parallel circuit consisting of two resistors of equal value. What is the value of each resistor?

Which requires the most electrical power? (Note: 1 horsepower is 746 watts)

What unit is used to express electrical power?

What is the basic unit of electrical quantity?

What is the operating resistance of a 30-watt light bulb designed for a 28-volt system?

When referencing resistance in a parallel DC circuit, which of the following statements is true?

Which of the following is commonly used as a rectifier in electrical circuits?

Diodes are used in electrical power supply circuits primarily as

Transfer of electric energy from one circuit to another without the aid of electrical connections

If three resistors of 3 ohms, 5 ohms, and 22 ohms are connected in series in a 28-volt circuit, how much current will flow through the 3-ohm resistor?

A circuit has an applied voltage of 30 watts and a load consisting of a 10-ohm resistor in series with a 20-ohm resistor. What is the voltage drop across the 10-ohm resistor?

Refer to Figure 11. Find the total current flowing in the wire between points C and D.

Refer to Figure 11. Find the voltage across the 8-ohm resistor.

In a parallel circuit with four 6-ohm resistors across a 24-volt battery, what is the total voltage across resistor-three (VR3) in the circuit?

If each cell, connected in series, equals 2 volts, how would a 12-cell lead acid battery be rated?

Refer to Figure 12. Find the total resistance of the circuit.

Which is correct in reference to electrical resistance?

What happens to the current in a voltage step-up transformer with a ratio of 1 to 4?

Refer to Figure 13. Determine the total current flow in the circuit.

In a parallel circuit with three 6-ohm resistors across a 12-volt battery, what is the total current (l_t) value in the circuit?

Refer to Figure 14. The total resistance of the circuit is

Which of these will cause the resistance of a conductor to decrease?

Through which material will magnetic lines of force pass the most readily?

Refer to Figure 64. A 48-volt source is required to furnish 192 watts to a parallel circuit consisting of three resistors of equal value. What is the value of each resistor?

Which is correct concerning a parallel circuit?

The voltage drop in a circuit of known resistance is dependent on

A thermal switch, or thermal protector, as used in an electric motor, is designed to

Refer to Figure 15. With the landing gear retracted, the red indicator light will not come on if an open occurs in wire

Refer to Figure 15. Wire 7 is used to

Refer to Figure 15. When the landing gear is down, the green light will not come on if an open occurs in wire 

Refer to Figure 16. What will be the effect if the PCO relay fails to operate when the left-hand tank is selected?

Refer to Figure 16. The TCO relay will operate if 24-volts DC is applied to the bus and the fuel tank selector is in the

Refer to Figure 16. With power to the bus and the fuel selector switched to the right-hand tank, how many relays in the system are operating?

Refer to Figure 16. When electrical power is applied to the bus, which relays are energized?

Refer to Figure 16. Energize the circuit with the fuel tank selector switch selected to the left-hand position. Using the schematic, identify the switches that will change position.

Refer to Figure 17. Which of the components is a potentiometer?

Refer to Figure 17. The electrical symbol represented at number 5 is a variable

Refer to Figure 18. When the landing gear is up and the throttles are retarded, the warning horn will not sound it an open occurs in wire

Refer to Figure 18. The control valve switch must be placed in the neutral position when the landing gear is down to

Refer to Figure 19. Under which condition will a ground be provided for the warning horn through both gear switches when the throttles are closed?

Refer to Figure 19. When the throttles are retarded with only the right gear down, the warning horn will not sound if an open occurs in wire

Refer to Figure 19. When the landing gears are up and the throttles are retarded, the warning horn will not sound if an open occurs in wire

When referring to an electrical circuit diagram, what point is considered to be at zero voltage?

What is the purpose of the ground symbol used in electrical circuit diagrams?

Refer to Figure 20. Troubleshooting an open circuit with a voltmeter as shown in this circuit will

Refer to Figure 21. Which symbol represents a variable resistor?

In a P-N-P transistor application, the solid-state device is turned on when the

In an N-P-N transistor application, the solid-state device is turned on when the

Typical application for zener diodes is as

Refer to Figure 22. Which illustration is correct concerning bias application and current (positive charge) flow?

Forward biasing of a solid-state device will cause the device to

Refer to Figure 23. If an open occurs at R1, the light

Refer to Figure 23. If R2 sticks in the up position, the light will

Refer to Figure 24. Which statement concerning the depicted logic gate is true?

Refer to Figure 25. In a functional and operating circuit, the depicted logic gate’s output will be 0

Refer to Figure 26. Which of the logic gate output conditions is correct with respect to the given inputs?

Which of the following topic gates will provide an active high out only when all inputs are different?

At lead-acid battery with 12 cells connected in series (no-load voltage = 2.1 volts per cell) furnishes 10 amperes to a load of 2-ohms resistance. The internal resistance of the battery in this instance is

If electrolyte from a lead-acid battery is spilled in the battery compartment, which procedure should be followed?

Which statement regarding the hydrometer reading of a lead-acid storage battery electrolyte is true?

A fully charged lead-acid battery will not freeze until extremely low temperatures are reached because

What determines the amount of current which will flow through a battery while it is being charged by a constant voltage source?

Which of the following statements is/are generally true regarding the charging of several aircraft batteries together?

1. Batteries of different voltages (but similar capacities) can be connected in series with each other across the charger, and charged using the constant current method.

2. Batteries of different ampere-hour capacity and same voltage can be connected in parallel with each other across the charger, and charged using the constant voltage method.

3. Batteries of the same voltage and same ampere-hour capacity must be connected in series with each other across the charger, and charged using the constant current method.

The method used to rapidly charge a nickel-cadmium battery utilizes

The purpose of providing a space underneath the plates in a lead acid batter’s cell container is to

Which condition is an indication of improperly torqued cell link connections of a nickel-cadmium battery?

The presence of any small amount of potassium carbonate deposits on the top of nickel-cadmium battery cells in service is an indication of

What is the likely result, if any, of servicing and charging nickel-cadmium and lead-acid batteries together in the same service area?

Which of the following best describes the operating principal in a nickel-cadmium battery installed in an aircraft?

The electrolyte of a nickel-cadmium battery is the lowest when the battery is

The electrolyte of a nickel-cadmium battery is the highest when the battery is

The end-of-charge voltage of a 19-cell nicked-cadmium battery, measured while still on charge

During discharge, nicked-cadmium batteries will show a lower liquid level than when at full charge because

How can the state-of-charge of a nickel-cadmium battery be determined?

What may result if water is added to a nickel-cadmium battery when it is not fully charged?

In nickel-cadmium batteries, a rise in cell temperature

Which of the following best describes the contributing factors to thermal runway in a nickel-cadmium battery installed in an aircraft?

When a charging current is applied to a nickel-cadmium battery, the cells emit gas