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Assignment 15

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

T4A11 Where should the negative return connection of a mobile transceiver's power cable be connected?
a.
At the battery or engine block ground strap
c.
To any metal part of the vehicle
b.
At the antenna mount
d.
Through the transceiver’s mounting bracket
 

 2. 

T5A01 Electrical current is measured in which of the following units?
a.
Volts
c.
Ohms
b.
Watts
d.
Amperes
 

 3. 

T5A03 What is the name for the flow of electrons in an electric circuit?
a.
Voltage
c.
Capacitance
b.
Resistance
d.
Current
 

 4. 

T5A04 What is the name for a current that flows only in one direction?
a.
Alternating current
c.
Normal current
b.
Direct current
d.
Smooth current
 

 5. 

T5A05 What is the electrical term for the electromotive force (EMF) that causes electron flow?
a.
Voltage
c.
Capacitance
b.
Ampere-hours
d.
Inductance
 

 6. 

T5A06 How much voltage does a mobile transceiver usually require?
a.
About 12 volts
c.
About 120 volts
b.
About 30 volts
d.
About 240 volts
 

 7. 

T5A07 Which of the following is a good electrical conductor?
a.
Glass
c.
Copper
b.
Wood
d.
Rubber
 

 8. 

T5A08 Which of the following is a good electrical insulator?
a.
Copper
c.
Aluminum
b.
Glass
d.
Mercury
 

 9. 

T5A09 What is the name for a current that reverses direction on a regular basis?
a.
Alternating current
c.
Circular current
b.
Direct current
d.
Vertical current
 

 10. 

T5A11 What is the basic unit of electromotive force?
a.
The volt
c.
The ampere
b.
The watt
d.
The ohm
 

 11. 

T5C01 What is the ability to store energy in an electric field called?
a.
Inductance
c.
Tolerance
b.
Resistance
d.
Capacitance
 

 12. 

T5C03 What is the ability to store energy in a magnetic field called?
a.
Admittance
c.
Resistance
b.
Capacitance
d.
Inductance
 

 13. 

T5C04 What is the basic unit of inductance?
a.
The coulomb
c.
The henry
b.
The farad
d.
The ohm
 

 14. 

T5C12 What is meant by the term impedance?
a.
It is a measure of the opposition to AC current flow in a circuit
c.
It is a measure of the Q or Quality Factor of a component
b.
It is the inverse of resistance
d.
It is a measure of the power handling capability of a component
 

 15. 

T5C13 What are the units of impedance?
a.
Volts
c.
Coulombs
b.
Amperes
d.
Ohms
 

 16. 

T6A01 What electrical component is used to oppose the flow of current in a DC circuit?
a.
Inductor
c.
Voltmeter
b.
Resistor
d.
Transformer
 

 17. 

T6A02 What type of component is often used as an adjustable volume control?
a.
Fixed resistor
c.
Potentiometer
b.
Power resistor
d.
Transformer
 

 18. 

T6A03 What electrical parameter is controlled by a potentiometer?
a.
Inductance
c.
Capacitance
b.
Resistance
d.
Field strength
 

 19. 

T6A04 What electrical component stores energy in an electric field?
a.
Resistor
c.
Inductor
b.
Capacitor
d.
Diode
 

 20. 

T6A05 What type of electrical component consists of two or more conductive surfaces separated by an insulator?
a.
Resistor
c.
Oscillator
b.
Potentiometer
d.
Capacitor
 

 21. 

T6A06 What type of electrical component stores energy in a magnetic field?
a.
Resistor
c.
Inductor
b.
Capacitor
d.
Diode
 

 22. 

T6A07 What electrical component is usually composed of a coil of wire?
a.
Switch
c.
Diode
b.
Capacitor
d.
Inductor
 

 23. 

T6A08 What electrical component is used to connect or disconnect electrical circuits?
a.
Magnetron
c.
Thermistor
b.
Switch
d.
All of these choices are correct
 

 24. 

T6A09 What electrical component is used to protect other circuit components from current overloads?
a.
Fuse
c.
Inductor
b.
Capacitor
d.
All of these choices are correct
 

 25. 

T6A10 Which of the following battery types is rechargeable?
a.
Nickel-metal hydride
c.
Lead-acid gel-cell
b.
Lithium-ion
d.
All of these choices are correct
 

 26. 

T6A11 Which of the following battery types is not rechargeable?
a.
Nickel-cadmium
c.
Lead-acid
b.
Carbon-zinc
d.
Lithium-ion
 

 27. 

T6B01 What class of electronic components is capable of using a voltage or current signal to control current flow?
a.
Capacitors
c.
Resistors
b.
Inductors
d.
Transistors
 

 28. 

T6B02 What electronic component allows current to flow in only one direction?
a.
Resistor
c.
Diode
b.
Fuse
d.
Driven Element
 

 29. 

T6B03 Which of these components can be used as an electronic switch or amplifier?
a.
Oscillator
c.
Transistor
b.
Potentiometer
d.
Voltmeter
 

 30. 

T6B04 Which of the following components can be made of three layers of semiconductor material?
a.
Alternator
c.
Triode
b.
Transistor
d.
Pentagrid converter
 

 31. 

T6B05 Which of the following electronic components can amplify signals?
a.
Transistor
c.
Electrolytic capacitor
b.
Variable resistor
d.
Multi-cell battery
 

 32. 

T6B06 How is the cathode lead of a semiconductor diode usually identified?
a.
With the word cathode
c.
With the letter C
b.
With a stripe
d.
All of these choices are correct
 

 33. 

T6B08 What does the abbreviation FET stand for?
a.
Field Effect Transistor
c.
Free Electron Transition
b.
Fast Electron Transistor
d.
Field Emission Thickness
 

 34. 

T6B09 What are the names of the two electrodes of a diode?
a.
Plus and minus
c.
Anode and cathode
b.
Source and drain
d.
Gate and base
 

 35. 

T6B10 What are the three electrodes of a PNP or NPN transistor?
a.
Emitter, base, and collector
c.
Cathode, grid, and plate
b.
Source, gate, and drain
d.
Cathode, drift cavity, and collector
 

 36. 

T6B11 What at are the three electrodes of a field effect transistor?
a.
Emitter, base, and collector
c.
Cathode, grid, and plate
b.
Source, gate, and drain
d.
Cathode, gate, and anode
 

 37. 

T6B12 What is the term that describes a transistor's ability to amplify a signal?
a.
Gain
c.
Forward voltage drop
b.
Forward resistance
d.
On resistance
 

 38. 

T6D01 Which of the following devices or circuits changes an alternating current into a varying direct current signal?
a.
Transformer
c.
Amplifier
b.
Rectifier
d.
Reflector
 

 39. 

T7D01 Which instrument would you use to measure electric potential or electromotive force?
a.
An ammeter
c.
A wavemeter
b.
A voltmeter
d.
An ohmmeter
 

 40. 

T7D02 What is the correct way to connect a voltmeter to a circuit?
a.
In series with the circuit
c.
In quadrature with the circuit
b.
In parallel with the circuit
d.
In phase with the circuit
 

 41. 

T7D03 How is an ammeter usually connected to a circuit?
a.
In series with the circuit
c.
In quadrature with the circuit
b.
In parallel with the circuit
d.
In phase with the circuit
 

 42. 

T7D04 Which instrument is used to measure electric current?
a.
An ohmmeter
c.
A voltmeter
b.
A wavemeter
d.
An ammeter
 

 43. 

T7D05 What instrument is used to measure resistance?
a.
An oscilloscope
c.
A noise bridge
b.
A spectrum analyzer
d.
An ohmmeter
 

 44. 

T5C02 What is the basic unit of capacitance?
a.
The farad
c.
The volt     
b.
The ohm
d.
The henry
 



 
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