VERIFIED EXAM 2026 -2027 — PART 1 (Questions 1–100 CORRECTLY
ANSWERED) 100% GUARANTED PASS.
SECTION A — BOILER FUNDAMENTALS
1. A boiler is primarily used to:
A. Compress air
B. Produce steam or hot water under pressure
C. Cool water
D. Store fuel
✅ Answer: B
2. Heat transfer in a boiler occurs by:
A. Radiation only
B. Conduction only
C. Radiation, convection, and conduction
D. Compression
✅ Answer: C
3. The boiling point of water increases when:
A. Pressure decreases
B. Pressure increases
C. Oxygen increases
D. Temperature drops
✅ Answer: B
4. A low-pressure steam boiler operates at pressures not exceeding:
A. 5 psi
B. 15 psi
,C. 50 psi
D. 150 psi
✅ Answer: B
5. A hot water heating boiler normally operates below:
A. 30 psi and 250°F
B. 100 psi and 400°F
C. 500 psi
D. 700°F
✅ Answer: A
6. The primary purpose of combustion is to:
A. Cool gases
B. Produce heat energy
C. Increase humidity
D. Reduce oxygen
✅ Answer: B
7. The three elements required for combustion are:
A. Steam, fuel, pressure
B. Fuel, oxygen, heat
C. Water, air, ash
D. Gas, smoke, flame
✅ Answer: B
8. Excess air in combustion is needed to:
A. Reduce draft
B. Ensure complete fuel burning
C. Cool boiler water
D. Increase pressure
✅ Answer: B
, 9. The main function of a boiler drum is to:
A. Store ash
B. Separate steam from water
C. Pump fuel
D. Increase draft
✅ Answer: B
10. A fire-tube boiler passes:
A. Water through tubes
B. Steam through tubes
C. Hot gases through tubes
D. Air through tubes only
✅ Answer: C
SECTION B — BOILER TYPES
11. In a water-tube boiler:
A. Water surrounds tubes
B. Water flows inside tubes
C. Fuel flows inside tubes
D. Steam flows outside tubes
✅ Answer: B
12. Fire-tube boilers are generally used for:
A. Extremely high pressure
B. Small to medium heating loads
C. Nuclear plants
D. Turbine generators only
✅ Answer: B