Texas Apprentice Electrician Examination Review with
Answers and Rationales | 100% Pass Guaranteed | Graded
A+
1. Voltage is best defined as:
A. Flow of electrons
B. Opposition to current
C. Electrical pressure
D. Power consumption
Answer: B
Voltage is electrical pressure that pushes current through a conductor.
2. The unit of electrical resistance is:
A. Volt
B. Ampere
C. Ohm
D. Watt
Answer: C
Resistance is measured in ohms (Ω).
3. Ohm’s Law states:
A. P = VI
B. V = IR
C. I = PR
D. R = PV
Answer: B
Ohm’s Law defines voltage as current times resistance.
4. Power is measured in:
A. Amps
B. Ohms
C. Watts
D. Volts
Answer: C
Electrical power is measured in watts.
5. A circuit with only one path for current is:
A. Parallel
B. Series
, C. Combination
D. Grounded
Answer: B
Series circuits provide only one current path.
6. Increasing resistance in a circuit will:
A. Increase current
B. Decrease current
C. Increase voltage
D. Increase power
Answer: B
According to Ohm’s Law, more resistance reduces current.
7. The frequency of standard AC power in the U.S. is:
A. 50 Hz
B. 60 Hz
C. 120 Hz
D. 240 Hz
Answer: B
Standard U.S. power operates at 60 Hz.
8. A short circuit results in:
A. High resistance
B. Low current
C. Very low resistance
D. No current flow
Answer: C
A short creates minimal resistance and excessive current.
Safety
9. The first step before working on a circuit is to:
A. Test voltage
B. Lockout/tagout
C. Ground the circuit
D. Increase load
Answer: B
Lockout/tagout ensures equipment cannot be energized.
, 10.PPE stands for:
A. Power Protection Equipment
B. Personal Protective Equipment
C. Primary Panel Entry
D. Protective Power Enclosure
Answer: B
PPE protects workers from electrical hazards.
11.Which is most dangerous?
A. 12V
B. 24V
C. 120V
D. Static electricity
Answer: C
120V can cause serious injury or death.
12.Arc flash hazards are caused by:
A. Low voltage
B. Short circuits
C. Open circuits
D. Ground rods
Answer: B
Arc flash occurs during high-fault current events.
NEC Basics
13.The NEC is updated every:
A. 1 year
B. 2 years
C. 3 years
D. 5 years
Answer: C
The National Electrical Code is revised every three years.
14.The NEC is primarily concerned with:
A. Efficiency
B. Safety
C. Cost reduction
D. Design aesthetics
Answers and Rationales | 100% Pass Guaranteed | Graded
A+
1. Voltage is best defined as:
A. Flow of electrons
B. Opposition to current
C. Electrical pressure
D. Power consumption
Answer: B
Voltage is electrical pressure that pushes current through a conductor.
2. The unit of electrical resistance is:
A. Volt
B. Ampere
C. Ohm
D. Watt
Answer: C
Resistance is measured in ohms (Ω).
3. Ohm’s Law states:
A. P = VI
B. V = IR
C. I = PR
D. R = PV
Answer: B
Ohm’s Law defines voltage as current times resistance.
4. Power is measured in:
A. Amps
B. Ohms
C. Watts
D. Volts
Answer: C
Electrical power is measured in watts.
5. A circuit with only one path for current is:
A. Parallel
B. Series
, C. Combination
D. Grounded
Answer: B
Series circuits provide only one current path.
6. Increasing resistance in a circuit will:
A. Increase current
B. Decrease current
C. Increase voltage
D. Increase power
Answer: B
According to Ohm’s Law, more resistance reduces current.
7. The frequency of standard AC power in the U.S. is:
A. 50 Hz
B. 60 Hz
C. 120 Hz
D. 240 Hz
Answer: B
Standard U.S. power operates at 60 Hz.
8. A short circuit results in:
A. High resistance
B. Low current
C. Very low resistance
D. No current flow
Answer: C
A short creates minimal resistance and excessive current.
Safety
9. The first step before working on a circuit is to:
A. Test voltage
B. Lockout/tagout
C. Ground the circuit
D. Increase load
Answer: B
Lockout/tagout ensures equipment cannot be energized.
, 10.PPE stands for:
A. Power Protection Equipment
B. Personal Protective Equipment
C. Primary Panel Entry
D. Protective Power Enclosure
Answer: B
PPE protects workers from electrical hazards.
11.Which is most dangerous?
A. 12V
B. 24V
C. 120V
D. Static electricity
Answer: C
120V can cause serious injury or death.
12.Arc flash hazards are caused by:
A. Low voltage
B. Short circuits
C. Open circuits
D. Ground rods
Answer: B
Arc flash occurs during high-fault current events.
NEC Basics
13.The NEC is updated every:
A. 1 year
B. 2 years
C. 3 years
D. 5 years
Answer: C
The National Electrical Code is revised every three years.
14.The NEC is primarily concerned with:
A. Efficiency
B. Safety
C. Cost reduction
D. Design aesthetics
