PAPER 2026 TEST PAPER QUESTIONS AND
COMPLETE SOLUTIONS
◉ What holds horizontal boilers together. Answer: Tie rods
◉ What stops horizontal boilers from leaking. Answer: Push nipples
or composite sealing rings
◉ What is the maximum temperature for a low temperature boiler.
Answer: 250°F (120°C)
◉ Maximum pressure of a low temperature boiler. Answer: 160 psig
1100 kpa
◉ Maximum pressure of a cast iron boiler. Answer: 30 psig
207 kpa
◉ How is a low temperature boiler usually rated. Answer: Btu/hr or
EDR
◉ What is 1 MBH equal to. Answer: 1000 BTU
, ◉ What is 1 BHP. Answer: 33475 btu/hr/bhp
◉ What is the input rating. Answer: Amount of fuel burned by the
burner
◉ What is output rating. Answer: Total heat output of the boiler
◉ What type of boiler is a low mass and what must it have. Answer:
Water tube
Flow switch
◉ What type of boiler is a high mass and what must it have. Answer:
Fire tube
Low water cut off
◉ What type of boiler is a copper tube available in. Answer: Low
mass
◉ What is a packaged boiler. Answer: Pre engineered assembly
supplied to eliminate the need to purchase separate components