APPRENTICE ELECTRICIAN LICESING EXAM
100 QUESTIONS AND DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
1–10: Basic Electrical Theory
1. Electrical current is measured in:
A. Volts
B. Watts
C. Amperes
D. Ohms
Current = flow of electrons, measured in amps.
2. Voltage is defined as:
A. Electrical pressure
B. Rate of electron flow
C. Power consumed
D. Resistance in a circuit
Voltage is the force pushing electrons.
3. Ohm’s Law states:
A. P = V ÷ I
B. V = I × R
C. R = V × I
D. P = I² ÷ R
Defines relationship between voltage, current, and resistance.
4. The opposition to current flow is:
A. Voltage
B. Resistance
, C. Power
D. Inductance
Resistance limits electron flow.
5. Power in a DC circuit is:
A. V × R
B. R ÷ I
C. V × I
D. I ÷ R
Electrical power equals voltage times current.
6. One kilowatt equals:
A. 1000 watts
B. 100 watts
C. 10,000 watts
D. 1 watt
Prefix kilo means 1000.
7. Resistance is measured in:
A. Watts
B. Ohms
C. Amps
D. Joules
Standard resistance unit is ohms.
8. A complete path for current flow is called a:
A. Short circuit
B. Closed circuit
C. Ground fault
D. Dead circuit
Complete loop = closed circuit.
9. The frequency of electrical systems in the U.S. is:
A. 24 Hz
B. 120 Hz
, C. 60 Hz
D. 240 Hz
Standard power frequency.
10.The NEC is primarily concerned with:
A. Efficiency
B. Safety
C. Profit
D. Skill certification
Main goal is protection of people and property.
11–20: Conductors & Wiring Methods
11.THHN refers to conductor insulation suitable for:
A. Low-voltage only
B. Dry and damp locations
C. Underground direct burial
D. Communications systems
THHN rated for 90°C dry, also damp.
12.Aluminum conductors require:
A. No antioxidant
B. Antioxidant compound
C. More strands than copper
D. Plastic coating
Prevents oxidation and corrosion.
13.The smaller the AWG number:
A. Lower current capacity
B. Larger conductor size
C. Less copper
D. Higher resistance
AWG is inverse sizing.
100 QUESTIONS AND DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
1–10: Basic Electrical Theory
1. Electrical current is measured in:
A. Volts
B. Watts
C. Amperes
D. Ohms
Current = flow of electrons, measured in amps.
2. Voltage is defined as:
A. Electrical pressure
B. Rate of electron flow
C. Power consumed
D. Resistance in a circuit
Voltage is the force pushing electrons.
3. Ohm’s Law states:
A. P = V ÷ I
B. V = I × R
C. R = V × I
D. P = I² ÷ R
Defines relationship between voltage, current, and resistance.
4. The opposition to current flow is:
A. Voltage
B. Resistance
, C. Power
D. Inductance
Resistance limits electron flow.
5. Power in a DC circuit is:
A. V × R
B. R ÷ I
C. V × I
D. I ÷ R
Electrical power equals voltage times current.
6. One kilowatt equals:
A. 1000 watts
B. 100 watts
C. 10,000 watts
D. 1 watt
Prefix kilo means 1000.
7. Resistance is measured in:
A. Watts
B. Ohms
C. Amps
D. Joules
Standard resistance unit is ohms.
8. A complete path for current flow is called a:
A. Short circuit
B. Closed circuit
C. Ground fault
D. Dead circuit
Complete loop = closed circuit.
9. The frequency of electrical systems in the U.S. is:
A. 24 Hz
B. 120 Hz
, C. 60 Hz
D. 240 Hz
Standard power frequency.
10.The NEC is primarily concerned with:
A. Efficiency
B. Safety
C. Profit
D. Skill certification
Main goal is protection of people and property.
11–20: Conductors & Wiring Methods
11.THHN refers to conductor insulation suitable for:
A. Low-voltage only
B. Dry and damp locations
C. Underground direct burial
D. Communications systems
THHN rated for 90°C dry, also damp.
12.Aluminum conductors require:
A. No antioxidant
B. Antioxidant compound
C. More strands than copper
D. Plastic coating
Prevents oxidation and corrosion.
13.The smaller the AWG number:
A. Lower current capacity
B. Larger conductor size
C. Less copper
D. Higher resistance
AWG is inverse sizing.
