2025/2026 90+ QUESTIONS| WITH
COMPLETE SOLUTIONS 100% GRADED
AT A+ SURE PASS!!
1. A desuperheater that is installed in a boiler is used to control.. -
ANSWER ✔ Super heated steam temperature
2. How does a steam engine work? - ANSWER ✔ Fuel is burned to
heat water and the water boils making steam which pushes a piston
that sets the machine being powered in motion.
3. What is steampunk? - ANSWER ✔ Fiction where steam
technology advanced instead of electronic technology.
4. What two vessels resulted from the steam engine's invention? -
ANSWER ✔ The steamboat and clipper ship.
5. Economizers are finned to.. - ANSWER ✔ Increase the rate of
heat for heat transfer
6. The heat transfer taking place in a surface condenser is
accomplished mainly by.. - ANSWER ✔ Conduction
7. An unfired pressure vessel which is used to transfer heat from one
substance to another is called.. - ANSWER ✔ Feed water heater,
Evaporator and Oil Cooler
8. Boiler economizers are primarily used for.. - ANSWER ✔
Recovery heat from flue gas
, 9. The main purpose of the deaerator is to.. - ANSWER ✔ Eliminate
non-condensable gases
10. Superheated steam is more efficient because.. - ANSWER ✔
Temperature & Total heat content are increased
11. A spear boiler feed water pump is equipped with a check
valve in the discharge line to... - ANSWER ✔ Permit fast start up
by leaving the discharge valve open
12. Excessive fireside deposits on heating surfaces of a
uncontrolled super heated boiler would be indicated by... -
ANSWER ✔ Decreased super heater outlet temperature
13. Why is the super heater safety valve set to release before the
drum safety? - ANSWER ✔ To ensure flow through the super
heater
14. What is the purpose of a steam trap? - ANSWER ✔ To drain
water and air
15. A steam trap utilizes flash steam to open but what comes
after for the closing operation? - ANSWER ✔ Impulse
16. Pitting in suction areas of a bronze impeller in centrifugal
pumps is usually caused by? - ANSWER ✔ (Best answer)
Cavitation or (Second Best) Corrosion
17. What type of pump has no moving parts? - ANSWER ✔ Jet
pump