FANDOM


T5Edit

The T5 section of the Technician test contains information on electrical principles, math for electronics, electronic principles, Ohm’s Law.

T5AEdit

The T5A section covers electrical principles; current and voltage, conductors and insulators, alternating and direct current.
Click "Expand" to reveal the questions.

T5A01

Electrical current is measured in which of the following units?
Amperes

T5A02

Electrical power is measured in which of the following units?
Watts

T5A03

What is the name for the flow of electrons in an electric circuit?
Current

T5A04

What is the name for a current that flows only in one direction?
Direct current

T5A05

What is the electrical term for the electromotive force (EMF) that causes electron flow?
Voltage

T5A06

How much voltage does a mobile transceiver usually require?
About 12 volts

T5A07

Which of the following is a good electrical conductor?
Copper

T5A08

Which of the following is a good electrical insulator?
Glass

T5A09

What is the name for a current that reverses direction on a regular basis?
Alternating current

T5A10

Which term describes the rate at which electrical energy is used?
Power

T5A11

What is the basic unit of electromotive force?
The volt

T5BEdit

The T5B section covers math for electronics; decibels, electrical units and the metric system.
Click "Expand" to reveal the questions.

T5B01

How many milliamperes is 1.5 amperes?
1,500 milliamperes

T5B02

What is another way to specify a radio signal frequency of 1,500,000 hertz?
1500 kHz

T5B03

How many volts are equal to one kilovolt?
One thousand volts

T5B04

How many volts are equal to one microvolt?
One one-millionth of a volt

T5B05

Which of the following is equivalent to 500 milliwatts?
0.5 watts

T5B06

If an ammeter calibrated in amperes is used to measure a 3000-milliampere current, what reading would it show?
3 amperes

T5B07

If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, what would it show if it were calibrated in kilohertz?
3525 kHz

T5B08

How many microfarads are 1,000,000 picofarads?
1 microfarad

T5B09

What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts?
3 dB

T5B10

What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts?
6 dB

T5B11

What is the approximate amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts?
10 dB

T5CEdit

The T5C section covers electronic principles; capacitance, inductance, current flow in circuits, alternating current, definition of RF, power calculations.
Click "Expand" to reveal the questions.

T5C01

What is the ability to store energy in an electric field called?
Capacitance

T5C02

What is the basic unit of capacitance?
The farad

T5C03

What is the ability to store energy in a magnetic field called?
Inductance

T5C04

What is the basic unit of inductance?
The henry.

T5C05

What is the unit of frequency?
Hertz

T5C06

What is the abbreviation that refers to radio frequency signals of all types?
RF

T5C07

What is a usual name for electromagnetic waves that travel through space?
Radio waves

T5C08

What is the formula used to calculate electrical power in a DC circuit?
Power (P) equals voltage (E) multiplied by current (I)
P=EI

T5C09

How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?
138 watts

T5C10

How much power is being used in a circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?
30 watts

T5C11

How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?
10 amperes

T5DEdit

The T5D section covers Ohm's Law.
Click "Expand" to reveal the questions.

T5D01

What formula is used to calculate current in a circuit?
Current (I) equals voltage (E) divided by resistance (R)

T5D02

What formula is used to calculate voltage in a circuit?
Voltage (E) equals current (I) multiplied by resistance (R)

T5D03

What formula is used to calculate resistance in a circuit?
Resistance (R) equals voltage (E) divided by current (I)

T5D04

What is the resistance of a circuit in which a current of 3 amperes flows through a resistor connected to 90 volts?
30 ohms

T5D05

What is the resistance in a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?
8 ohms

T5D06

What is the resistance of a circuit that draws 4 amperes from a 12-volt source?
A. 3 ohms

T5D07

What is the current flow in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?
1.5 amperes

T5D08

What is the current flowing through a 100-ohm resistor connected across 200 volts?
2 amperes

T5D09

What is the current flowing through a 24-ohm resistor connected across 240 volts?
10 amperes

T5D10

What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?
1 volt

T5D11

What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?
10 volts

T5D12

What is the voltage across a 10-ohm resistor if a current of 2 ampere flows through it?
20 volts

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.