Steamfitter Pipefitter Second period AIT
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
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1. The transfer of energy in the form of waves or particles is referred to as:
A. Conduction
B. Radiation
C. Convection
D. Reflection
Answer: B. Radiation
2. What component must be installed on a hydronic heating system because of
differing flow velocities?
A. Pressure regulator
B. Expansion tank
C. Hydraulic separator (low-loss header)
D. Backflow preventer
Answer: C. Hydraulic separator (low-loss header)
3. When using the hand lay-up method of joining FRP pipe, which strip should
be applied first?
A. Wide strip
B. Outer strip
C. Reinforcement strip
,D. Narrow strip
Answer: D. Narrow strip
4. Which component in a tri-clover system can become deformed and create a
contamination point?
A. Clamp
B. Ferrule
C. Gasket
D. Valve stem
Answer: C. Gasket
5. When an appliance is not firing but the pilot light remains lit, the gas line
pressure is known as:
A. Dynamic pressure
B. Lockup pressure
C. Standing pressure
D. Working pressure
Answer: C. Standing pressure
6. Pressure loss in a fitting or valve is commonly expressed as:
A. Static head
B. Equivalent length of straight pipe
C. Friction factor
D. Pipe coefficient
Answer: B. Equivalent length of straight pipe
7. The flame speed of natural gas is approximately:
A. 12 in/s
B. 18 in/s
,C. 26 in/s
D. 40 in/s
Answer: C. 26 in/s
8. What is the primary difference between a steam boiler and a hydronic boiler?
A. The burner type
B. The trim
C. The heat exchanger
D. The venting system
Answer: B. The trim
9. What is the formula used to calculate the safe working load of a sling?
A. D × 4
B. D² × 6
C. D² × 8
D. D × 10
Answer: C. D² × 8
10. At what pipe size does pipe sizing begin using outside diameter instead of
nominal size?
A. 10 inches
B. 12 inches
C. 14 inches
D. 16 inches
Answer: C. 14 inches
11. A thermocouple produces millivolts in order to:
A. Ignite the pilot burner
B. Open the vent damper
, C. Keep the gas valve open
D. Increase flame temperature
Answer: C. Keep the gas valve open
12. What is the safety factor for a chain sling?
A. 3:1
B. 4:1
C. 5:1
D. 10:1
Answer: B. 4:1
13. What is the standard safety factor for a wire rope sling?
A. 2:1
B. 4:1
C. 5:1
D. 8:1
Answer: C. 5:1
14. What safety factor is commonly used for lifting or transporting workers?
A. 5:1
B. 7:1
C. 10:1
D. 20:1
Answer: C. 10:1
15. Public elevators are generally designed with what safety factor?
A. 5:1
B. 10:1
C. 15:1
Comprehensive Resource To Help You Ace 2026-2027 Exams
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
Instant Download Pdf
1. The transfer of energy in the form of waves or particles is referred to as:
A. Conduction
B. Radiation
C. Convection
D. Reflection
Answer: B. Radiation
2. What component must be installed on a hydronic heating system because of
differing flow velocities?
A. Pressure regulator
B. Expansion tank
C. Hydraulic separator (low-loss header)
D. Backflow preventer
Answer: C. Hydraulic separator (low-loss header)
3. When using the hand lay-up method of joining FRP pipe, which strip should
be applied first?
A. Wide strip
B. Outer strip
C. Reinforcement strip
,D. Narrow strip
Answer: D. Narrow strip
4. Which component in a tri-clover system can become deformed and create a
contamination point?
A. Clamp
B. Ferrule
C. Gasket
D. Valve stem
Answer: C. Gasket
5. When an appliance is not firing but the pilot light remains lit, the gas line
pressure is known as:
A. Dynamic pressure
B. Lockup pressure
C. Standing pressure
D. Working pressure
Answer: C. Standing pressure
6. Pressure loss in a fitting or valve is commonly expressed as:
A. Static head
B. Equivalent length of straight pipe
C. Friction factor
D. Pipe coefficient
Answer: B. Equivalent length of straight pipe
7. The flame speed of natural gas is approximately:
A. 12 in/s
B. 18 in/s
,C. 26 in/s
D. 40 in/s
Answer: C. 26 in/s
8. What is the primary difference between a steam boiler and a hydronic boiler?
A. The burner type
B. The trim
C. The heat exchanger
D. The venting system
Answer: B. The trim
9. What is the formula used to calculate the safe working load of a sling?
A. D × 4
B. D² × 6
C. D² × 8
D. D × 10
Answer: C. D² × 8
10. At what pipe size does pipe sizing begin using outside diameter instead of
nominal size?
A. 10 inches
B. 12 inches
C. 14 inches
D. 16 inches
Answer: C. 14 inches
11. A thermocouple produces millivolts in order to:
A. Ignite the pilot burner
B. Open the vent damper
, C. Keep the gas valve open
D. Increase flame temperature
Answer: C. Keep the gas valve open
12. What is the safety factor for a chain sling?
A. 3:1
B. 4:1
C. 5:1
D. 10:1
Answer: B. 4:1
13. What is the standard safety factor for a wire rope sling?
A. 2:1
B. 4:1
C. 5:1
D. 8:1
Answer: C. 5:1
14. What safety factor is commonly used for lifting or transporting workers?
A. 5:1
B. 7:1
C. 10:1
D. 20:1
Answer: C. 10:1
15. Public elevators are generally designed with what safety factor?
A. 5:1
B. 10:1
C. 15:1
