Page 1 of 133
Texas Master Sign Electrician Exam QUESTIONS AND
VERIFIED ANSWERS LATEST UPDATE THIS YEAR
Texas Master Sign Electrician Exam
1. A contractor is installing a new electric sign and must determine whether a permit is required before
beginning work. Under Texas licensing requirements and TDLR regulations, what should the contractor
do first?
A. Begin installation and apply for the permit after inspection
B. Obtain required permits before commencing regulated electrical work
C. Install all wiring before contacting the authority having jurisdiction
D. Wait until the sign is energized before requesting approval
Answer: B
Rationale: Texas regulations generally require required permits and approvals before regulated
electrical installation work begins. Starting work without permits can result in violations and failed
inspections.
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2. During a service calculation for a large LED sign installation, an electrician must determine total power
consumption. If the sign operates at 240 volts and draws 20 amperes continuously, what is the
calculated wattage?
A. 2,400 watts
B. 4,800 watts
C. 5,600 watts
D. 6,000 watts
Answer: B
Rationale: Power equals voltage multiplied by current. 240 × 20 = 4,800 watts.
3. While troubleshooting a sign circuit, an electrician measures 120 volts across a resistance of 24 ohms.
According to Ohm’s Law, what current should be expected?
A. 2 amperes
B. 4 amperes
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C. 5 amperes
D. 10 amperes
Answer: C
Rationale: Current equals voltage divided by resistance. 120 ÷ 24 = 5 amperes.
4. An electric sign branch circuit contains several loads connected in parallel. Which characteristic best
describes a properly functioning parallel circuit installation?
A. Current remains identical through all branches regardless of resistance
B. Voltage across each branch remains substantially the same
C. Resistance increases as additional branches are added
D. Voltage is divided equally among all connected loads
Answer: B
Rationale: In parallel circuits, voltage remains the same across each branch while current divides
according to load characteristics.
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5. An electrician is reviewing NEC requirements for sign installations and needs to locate rules
specifically governing electric signs and outline lighting systems. Which NEC article should be consulted
first?
A. Article 220
B. Article 230
C. Article 250
D. Article 600
Answer: D
Rationale: NEC Article 600 contains requirements specifically addressing electric signs and outline
lighting systems.
6. During a feeder design review, an inspector notices conductor ampacity was selected without
considering ambient temperature corrections. Why is this a code concern?
Texas Master Sign Electrician Exam QUESTIONS AND
VERIFIED ANSWERS LATEST UPDATE THIS YEAR
Texas Master Sign Electrician Exam
1. A contractor is installing a new electric sign and must determine whether a permit is required before
beginning work. Under Texas licensing requirements and TDLR regulations, what should the contractor
do first?
A. Begin installation and apply for the permit after inspection
B. Obtain required permits before commencing regulated electrical work
C. Install all wiring before contacting the authority having jurisdiction
D. Wait until the sign is energized before requesting approval
Answer: B
Rationale: Texas regulations generally require required permits and approvals before regulated
electrical installation work begins. Starting work without permits can result in violations and failed
inspections.
, Page 2 of 133
2. During a service calculation for a large LED sign installation, an electrician must determine total power
consumption. If the sign operates at 240 volts and draws 20 amperes continuously, what is the
calculated wattage?
A. 2,400 watts
B. 4,800 watts
C. 5,600 watts
D. 6,000 watts
Answer: B
Rationale: Power equals voltage multiplied by current. 240 × 20 = 4,800 watts.
3. While troubleshooting a sign circuit, an electrician measures 120 volts across a resistance of 24 ohms.
According to Ohm’s Law, what current should be expected?
A. 2 amperes
B. 4 amperes
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C. 5 amperes
D. 10 amperes
Answer: C
Rationale: Current equals voltage divided by resistance. 120 ÷ 24 = 5 amperes.
4. An electric sign branch circuit contains several loads connected in parallel. Which characteristic best
describes a properly functioning parallel circuit installation?
A. Current remains identical through all branches regardless of resistance
B. Voltage across each branch remains substantially the same
C. Resistance increases as additional branches are added
D. Voltage is divided equally among all connected loads
Answer: B
Rationale: In parallel circuits, voltage remains the same across each branch while current divides
according to load characteristics.
, Page 4 of 133
5. An electrician is reviewing NEC requirements for sign installations and needs to locate rules
specifically governing electric signs and outline lighting systems. Which NEC article should be consulted
first?
A. Article 220
B. Article 230
C. Article 250
D. Article 600
Answer: D
Rationale: NEC Article 600 contains requirements specifically addressing electric signs and outline
lighting systems.
6. During a feeder design review, an inspector notices conductor ampacity was selected without
considering ambient temperature corrections. Why is this a code concern?
