Wyoming Skilled Trades & Construction
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A Instant Download Pdf
1. What is the primary purpose of a construction site safety program?
A. Increase production speed
B. Reduce material costs
C. Prevent injuries, illnesses, and property damage
D. Eliminate inspections
Answer: Prevent injuries, illnesses, and property damage
Rationale: A safety program identifies hazards and establishes procedures
intended to protect workers, the public, equipment, and property.
2. Which personal protective equipment is generally required when there is a
risk of falling objects striking a worker's head?
A. Safety glasses only
B. Hearing protection
C. A properly rated hard hat
D. Dust mask
Answer: A properly rated hard hat
Rationale: Head protection is required where workers may be exposed to falling,
flying, or other impact hazards.
, 3. What is the purpose of a GFCI?
A. Increase circuit voltage
B. Reduce wire resistance
C. Protect people from electrical shock caused by ground-fault current
D. Increase motor speed
Answer: Protect people from electrical shock caused by ground-fault current
Rationale: A GFCI detects an imbalance between current leaving and returning
through the circuit and quickly interrupts power.
4. In a standard residential electrical circuit, what is the primary function of
the circuit breaker?
A. Increase voltage
B. Store electrical energy
C. Protect conductors from excessive current
D. Ground the building
Answer: Protect conductors from excessive current
Rationale: Circuit breakers open the circuit when current exceeds the protective
rating, helping prevent conductor overheating and fire.
5. What instrument is commonly used to measure voltage?
A. Clamp
B. Megger only
C. Voltmeter or multimeter
D. Tachometer
Answer: Voltmeter or multimeter
Rationale: A voltmeter measures electrical potential difference between two
points.
6. What is the purpose of an equipment grounding conductor?
,A. Carry normal load current
B. Increase circuit voltage
C. Provide a low-impedance path for fault current
D. Replace overcurrent protection
Answer: Provide a low-impedance path for fault current
Rationale: The grounding path allows fault current to return to the source so
protective devices can operate promptly.
7. Wyoming's electrical licensing examinations are based on which electrical
code?
A. International Plumbing Code
B. International Residential Code only
C. National Electrical Code (NEC)
D. Uniform Mechanical Code only
Answer: National Electrical Code (NEC)
Rationale: Wyoming adopts the NEC for electrical work, and the state has
announced that the 2026 NEC becomes effective July 1, 2026.
8. What is the minimum number of apprentices a Wyoming licensed
journeyman or master electrician may supervise at one time under the
stated apprentice ratio?
A. One
B. Two
C. Three
D. Four
Answer: Two
Rationale: Wyoming's electrical licensing information states that a licensed
journeyman or master electrician may not supervise more than two apprentice
electricians at the same time.
, 9. Which tool is most appropriate for tightening a nut to a specified torque?
A. Pipe wrench
B. Adjustable wrench
C. Torque wrench
D. Locking pliers
Answer: Torque wrench
Rationale: A torque wrench permits a fastener to be tightened to a specified
torque value, helping prevent under- or over-tightening.
10.What does lockout/tagout primarily protect workers from?
A. Excessive noise
B. Slippery floors
C. Unexpected energization or startup of equipment
D. Sun exposure
Answer: Unexpected energization or startup of equipment
Rationale: Lockout/tagout procedures isolate hazardous energy before servicing
or maintenance.
11.Which material is commonly used for residential potable-water supply
piping?
A. Cast iron drain pipe
B. PEX
C. Roof flashing
D. Structural steel
Answer: PEX
Rationale: PEX is widely used for potable-water distribution because it is
flexible, corrosion-resistant, and suitable for many residential applications.
12.What is the purpose of a plumbing trap?
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A Instant Download Pdf
1. What is the primary purpose of a construction site safety program?
A. Increase production speed
B. Reduce material costs
C. Prevent injuries, illnesses, and property damage
D. Eliminate inspections
Answer: Prevent injuries, illnesses, and property damage
Rationale: A safety program identifies hazards and establishes procedures
intended to protect workers, the public, equipment, and property.
2. Which personal protective equipment is generally required when there is a
risk of falling objects striking a worker's head?
A. Safety glasses only
B. Hearing protection
C. A properly rated hard hat
D. Dust mask
Answer: A properly rated hard hat
Rationale: Head protection is required where workers may be exposed to falling,
flying, or other impact hazards.
, 3. What is the purpose of a GFCI?
A. Increase circuit voltage
B. Reduce wire resistance
C. Protect people from electrical shock caused by ground-fault current
D. Increase motor speed
Answer: Protect people from electrical shock caused by ground-fault current
Rationale: A GFCI detects an imbalance between current leaving and returning
through the circuit and quickly interrupts power.
4. In a standard residential electrical circuit, what is the primary function of
the circuit breaker?
A. Increase voltage
B. Store electrical energy
C. Protect conductors from excessive current
D. Ground the building
Answer: Protect conductors from excessive current
Rationale: Circuit breakers open the circuit when current exceeds the protective
rating, helping prevent conductor overheating and fire.
5. What instrument is commonly used to measure voltage?
A. Clamp
B. Megger only
C. Voltmeter or multimeter
D. Tachometer
Answer: Voltmeter or multimeter
Rationale: A voltmeter measures electrical potential difference between two
points.
6. What is the purpose of an equipment grounding conductor?
,A. Carry normal load current
B. Increase circuit voltage
C. Provide a low-impedance path for fault current
D. Replace overcurrent protection
Answer: Provide a low-impedance path for fault current
Rationale: The grounding path allows fault current to return to the source so
protective devices can operate promptly.
7. Wyoming's electrical licensing examinations are based on which electrical
code?
A. International Plumbing Code
B. International Residential Code only
C. National Electrical Code (NEC)
D. Uniform Mechanical Code only
Answer: National Electrical Code (NEC)
Rationale: Wyoming adopts the NEC for electrical work, and the state has
announced that the 2026 NEC becomes effective July 1, 2026.
8. What is the minimum number of apprentices a Wyoming licensed
journeyman or master electrician may supervise at one time under the
stated apprentice ratio?
A. One
B. Two
C. Three
D. Four
Answer: Two
Rationale: Wyoming's electrical licensing information states that a licensed
journeyman or master electrician may not supervise more than two apprentice
electricians at the same time.
, 9. Which tool is most appropriate for tightening a nut to a specified torque?
A. Pipe wrench
B. Adjustable wrench
C. Torque wrench
D. Locking pliers
Answer: Torque wrench
Rationale: A torque wrench permits a fastener to be tightened to a specified
torque value, helping prevent under- or over-tightening.
10.What does lockout/tagout primarily protect workers from?
A. Excessive noise
B. Slippery floors
C. Unexpected energization or startup of equipment
D. Sun exposure
Answer: Unexpected energization or startup of equipment
Rationale: Lockout/tagout procedures isolate hazardous energy before servicing
or maintenance.
11.Which material is commonly used for residential potable-water supply
piping?
A. Cast iron drain pipe
B. PEX
C. Roof flashing
D. Structural steel
Answer: PEX
Rationale: PEX is widely used for potable-water distribution because it is
flexible, corrosion-resistant, and suitable for many residential applications.
12.What is the purpose of a plumbing trap?
