,Name Clas Dat
: s: e:
Chapter 1
A Review of Electricity and Electronics
1. Technician A says that voltage drop occurs in a circuit only when the circuit is complete and current is
flowing. Technician B says that amperage is reduced as it passes through a series circuit. Who is correct?
a. Technician Technician A only b. Technician Technician B only
c. Both A and B d. Neither A nor B
ANSWER: a
POINTS: 1
2. A circuit has two 10 ohm resistors in parallel. What is the total circuit resistance?
a. 30 ohms b. 15 ohms
c. 10 ohms d. Less than 10 ohms
ANSWER: d
POINTS: 1
3. If a battery with 12 volts were connected to a series circuit that had a total resistance of 3 ohms, how much
current would flow in the circuit?
a. 25 amps b. 4 amps
c. 12 amps d. 36 amps
ANSWER: b
POINTS: 1
4. Which condition could cause a circuit’s fuse to burn open due to excessive current flow?
a. A loose electrical connection that intermittently opens the b. A shorted winding within a
circuit, causing an electrical arc load component
c. High electrical resistance within the load component d. Both A and B
ANSWER: b
POINTS: 1
5. The three essential parts of an operating circuit include all of the following EXCEPT the:
a. voltage source b. circuitry
c. switch d. load component
ANSWER: c
POINTS: 1
6. Technician A says that a diode is an electrical one-way check valve with no moving parts. Technician B says
that a transistor is an electronic switch with no moving parts. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
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,Name Clas Dat
: s: e:
Chapter 1
A Review of Electricity and Electronics
7. A diode is used for all of the following EXCEPT:
a. AC to DC voltage rectification b. controlling current flow paths in circuits that share a common
load
c. switching a load device on and d. voltage spike suppression
off
ANSWER: c
POINTS: 1
8.
Which device is represented by the symbol in Figure 2 above ?
a. Diode b. Capacitor
c. PNP transistor d. NPN transistor
ANSWER: d
POINTS: 1
9. An H-gate is used by a computer to reverse current flow in a load component that it controls. What does an
H-gate consist of?
a. Two pairs of diodes b. Two pairs of transistors
c. Two pairs of resistors d. Two pairs of capacitors
ANSWER: b
POINTS: 1
10. If a digital sensor sends the computer a variable digital frequency, what unit of measurement is applicable to the
sensor’s signal?
a. DC Volts (DCV) b. Hertz (Hz)
c. Duty cycle (%) d. Pulse width (ms)
ANSWER: b
POINTS: 1
11. All of the following are good electrical conductors EXCEPT:
a. Copper b. Gold
c. Ceramic d. Aluminum
ANSWER: c
POINTS: 1
12. Technician A says an atom that loses or gains one electron is balanced. Technician B says an atom that loses
or gains one electron becomes a charged particle or ion. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
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, Name Clas Dat
: s: e:
Chapter 1
A Review of Electricity and Electronics
ANSWER: b
POINTS: 1
13. Technician A says when a magnetic field is moved across a conductor, voltage will be induced in the
conductor. Technician B says when a conductor is moved across a magnetic field, voltage will be induced in the
conductor. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. NeitherA nor B
ANSWER: c
POINTS: 1
14. Technician A says amperage is the same at any point in a series circuit. Technician B says the total
resistance is the sum of all resistance in a series circuit. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
15. A taillight bulb is glowing dimly. A voltmeter placed across the bulb reads 4 volts. Technician A says there
may be excessive resistance in the ground circuit. Technician B says there may be excessive resistance in the
power feed circuit. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
16. Technician A says current will increase with a decrease in resistance. Technician B says current will
decrease with an increase in resistance. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
17. Which statement concerning series circuits is NOT true?
a. The sum of the voltage drops equals the b. The amount of current (amperes) flowing
source voltage through the circuit is the same throughout the
circuit
c. The voltage drop across each load is d. The total resistance is equal to the lowest
different if the resistance of the loads is resistance in the circuit
different
ANSWER: d
Copyright Cengage Learning. Powered by Cognero. Page 3
: s: e:
Chapter 1
A Review of Electricity and Electronics
1. Technician A says that voltage drop occurs in a circuit only when the circuit is complete and current is
flowing. Technician B says that amperage is reduced as it passes through a series circuit. Who is correct?
a. Technician Technician A only b. Technician Technician B only
c. Both A and B d. Neither A nor B
ANSWER: a
POINTS: 1
2. A circuit has two 10 ohm resistors in parallel. What is the total circuit resistance?
a. 30 ohms b. 15 ohms
c. 10 ohms d. Less than 10 ohms
ANSWER: d
POINTS: 1
3. If a battery with 12 volts were connected to a series circuit that had a total resistance of 3 ohms, how much
current would flow in the circuit?
a. 25 amps b. 4 amps
c. 12 amps d. 36 amps
ANSWER: b
POINTS: 1
4. Which condition could cause a circuit’s fuse to burn open due to excessive current flow?
a. A loose electrical connection that intermittently opens the b. A shorted winding within a
circuit, causing an electrical arc load component
c. High electrical resistance within the load component d. Both A and B
ANSWER: b
POINTS: 1
5. The three essential parts of an operating circuit include all of the following EXCEPT the:
a. voltage source b. circuitry
c. switch d. load component
ANSWER: c
POINTS: 1
6. Technician A says that a diode is an electrical one-way check valve with no moving parts. Technician B says
that a transistor is an electronic switch with no moving parts. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
Copyright Cengage Learning. Powered by Cognero. Page 1
,Name Clas Dat
: s: e:
Chapter 1
A Review of Electricity and Electronics
7. A diode is used for all of the following EXCEPT:
a. AC to DC voltage rectification b. controlling current flow paths in circuits that share a common
load
c. switching a load device on and d. voltage spike suppression
off
ANSWER: c
POINTS: 1
8.
Which device is represented by the symbol in Figure 2 above ?
a. Diode b. Capacitor
c. PNP transistor d. NPN transistor
ANSWER: d
POINTS: 1
9. An H-gate is used by a computer to reverse current flow in a load component that it controls. What does an
H-gate consist of?
a. Two pairs of diodes b. Two pairs of transistors
c. Two pairs of resistors d. Two pairs of capacitors
ANSWER: b
POINTS: 1
10. If a digital sensor sends the computer a variable digital frequency, what unit of measurement is applicable to the
sensor’s signal?
a. DC Volts (DCV) b. Hertz (Hz)
c. Duty cycle (%) d. Pulse width (ms)
ANSWER: b
POINTS: 1
11. All of the following are good electrical conductors EXCEPT:
a. Copper b. Gold
c. Ceramic d. Aluminum
ANSWER: c
POINTS: 1
12. Technician A says an atom that loses or gains one electron is balanced. Technician B says an atom that loses
or gains one electron becomes a charged particle or ion. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
Copyright Cengage Learning. Powered by Cognero. Page 2
, Name Clas Dat
: s: e:
Chapter 1
A Review of Electricity and Electronics
ANSWER: b
POINTS: 1
13. Technician A says when a magnetic field is moved across a conductor, voltage will be induced in the
conductor. Technician B says when a conductor is moved across a magnetic field, voltage will be induced in the
conductor. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. NeitherA nor B
ANSWER: c
POINTS: 1
14. Technician A says amperage is the same at any point in a series circuit. Technician B says the total
resistance is the sum of all resistance in a series circuit. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
15. A taillight bulb is glowing dimly. A voltmeter placed across the bulb reads 4 volts. Technician A says there
may be excessive resistance in the ground circuit. Technician B says there may be excessive resistance in the
power feed circuit. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
16. Technician A says current will increase with a decrease in resistance. Technician B says current will
decrease with an increase in resistance. Who is correct?
a. Technician A only b. Technician B only
c. Both A and B d. Neither A nor B
ANSWER: c
POINTS: 1
17. Which statement concerning series circuits is NOT true?
a. The sum of the voltage drops equals the b. The amount of current (amperes) flowing
source voltage through the circuit is the same throughout the
circuit
c. The voltage drop across each load is d. The total resistance is equal to the lowest
different if the resistance of the loads is resistance in the circuit
different
ANSWER: d
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