ALBERTA STEAMFITTER PIPEFITTER SECOND PERIOD AIT EXAM 300-QUESTION & ANSWERS

ALBERTA STEAMFITTER PIPEFITTER SECOND PERIOD AIT EXAM 300-QUESTION & ANSWERS SECTION 1: STEAM SYSTEMS AND COMPONENTS 1. What is the primary function of a steam trap in a steam heating system? A. Regulate steam temperature B. Remove condensate and air from the system C. Increase steam pressure D. Control fuel flow to the boiler B. Remove condensate and air from the system 2. Which material is most commonly specified for high-pressure steam piping applications? A. Stainless steel B. Carbon steel C. Copper tubing D. Cast iron B. Carbon steel 3. When bending small-diameter steel pipe in the field, which method is most practical? A. Heat induction bending B. Sand packing and heating C. Mechanical bending with a manual or hydraulic bender D. Cold forging with a press C. Mechanical bending with a manual or hydraulic bender 4. What is the most serious hazard associated with working on pressurized steam systems? A. Excessive noise exposure B. Water hammer and severe burns C. Slippery working conditions D. Oxygen deficiency in confined spaces B. Water hammer and severe burns 5. Which fitting is specifically designed to connect pipes of different diameters? A. Elbow B. Tee C. Reducer D. Coupling C. Reducer 6. What is the primary purpose of a safety valve on a steam boiler? A. Increase steam output during peak demand B. Regulate the fuel supply to the burner C. Relieve excess pressure to prevent explosion D. Maintain a constant water level in the boiler C. Relieve excess pressure to prevent explosion 7. What type of thread is standard for threaded steam piping connections? A. NPT (National Pipe Thread) B. BSPP (British Standard Pipe Parallel) C. Metric coarse thread D. ACME thread A. NPT (National Pipe Thread) 8. According to fluid dynamics principles, which factor has the greatest influence on flow rate in a pipe? A. Pipe diameter B. Pipe color C. Pipe length D. Insulation thickness A. Pipe diameter 9. When installing insulation on steam piping, what is the primary consideration? A. Aesthetic appearance of the insulation B. Preventing heat loss and protecting personnel from burns C. Adding weight to the piping system D. Reducing operational noise only B. Preventing heat loss and protecting personnel from burns 10. What is a steam header in a boiler system? A. A device that removes condensate from steam B. A main distribution pipe that collects steam from multiple boiler outlets C. A valve that controls steam pressure D. A fitting that reduces pipe diameter B. A main distribution pipe that collects steam from multiple boiler outlets