Alberta Boiler Operator EXAM STUDY
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. What is the first thing a boiler operator must do when taking over a shift? -
ANSWER ✔ Report to work 10 to 15 minutes early. Check the water level
on all the boilers on the line by blowing down the gauge glass, water
column, and low water fuel cutoff.
2. What are different ways of getting water into a boiler? - ANSWER ✔ are the
vacuum pump, feedwater pump, automatic city water makeup feeder, and
hand-operated city water makeup valve.
3. What is the function of a pressure control? - ANSWER ✔ The pressure
control is sensitive to pressure and controls the boiler operating range. It
starts and stops the burner on steam pressure demand.
4. How are safety valves tested? - ANSWER ✔ tested by hand or by pressure.
5. How often should safety valves be tested? - ANSWER ✔ 2. low pressure
boilers should be tested by hand once every 30 days the boiler is in
operation. The ASME code also recommends the testing of safety valves
under pressure once a year, preferably before the start of the heating season.
In addition to the ASME code, safety valves should be tested according to
recommendations of the local boiler inspector.
,6. 6.What is the function of a low water fuel cutoff? - ANSWER ✔ to shut the
burner off to protect the boiler heating surface from becoming overheated
due to low water in the boiler.
7. How is a low water fuel cutoff tested? - ANSWER ✔ The two methods of
testing a low water fuel cutoff are by hand or by an evaporation test.
8. When should a safety valve pop on a low pressure steam boiler? - ANSWER
✔ A safety valve must pop (open) whenever pressure exceeds the safety
valve setting to prevent the boiler from exceeding its MAWP.
9. what pressure should a safety valve pop on a low pressure steam boiler? -
ANSWER ✔ The safety valves on low pressure steam boilers are set to pop
open at 15 psi
10.what does
11."purging the furnace'' mean ? - ANSWER ✔ when the burner fan blows air
into the furnace to remove any mixture of gases or fumes of a combustible
nature that might cause a furnace explosion
12.SUPERHEATER DRAIN - ANSWER ✔ Valve found on the superheater
header outlet. Used to maintain flow throughout the superheater during start-
up and shutdown
13.SURFACE BLOWDOWN VALVE - ANSWER ✔ Used to remove
impurities from the surface of the water in a steam and water drum.
,14.SURFACE CONDENSER - ANSWER ✔ A shell-and-tube vessel used to
reduce the exhaust pressure on the outlet end of turbines or engines
15.SURFACE TENSION - ANSWER ✔ Caused by impurities on the top of the
water in the steam and water drum
16.SUSPENSION SLING - ANSWER ✔ Used to support the drum of the HRT
boiler
17.SYNCHRONIZE - ANSWER ✔ To balance out combustion controls before
switching to automatic
18.TENSILE STRESS - ANSWER ✔ Occurs when two forces of equal
intensity act on an object, pulling in opposite directions. Affects boiler plates
and staybolts
19.THERM - ANSWER ✔ Unit used to measure BTU content of natural gas. A
therm has 100,000 BTU
20.THERMAL EFFICIENCY - ANSWER ✔ The ratio of the heat absorbed by
the boiler to the heat available in the fuel per unit of time
21.Field-erected boiler - ANSWER ✔ Boiler that must be erected in the field
because of its size & complexity
22.What are primary, secondary , and excess air? - ANSWER ✔ Primary air
controls the combustion rate, which determines the amount of fuel burned.
Secondary air controls combustion efficiency by controlling how completely
, the fuel is burned. Excess air is supplied to the burner above the theoretical
amount required to burn the fuel.
23.What is the function of a flame safeguard system? - ANSWER ✔ ? is burner
control equipment that monitors the burner start-up sequence and the main
flame during normal operation. The flame safeguard programmer se-
quences burner function in a set order including prepurge, ignition trials,
pilot flame-establishing period, main burner flame-establishing period, run
period, and postpurge.
24.What is hydrostatic pressure? - ANSWER ✔ is pressure caused by the
weight of water (approximately 0.433 psi per vertical foot). Hydrostatic
pressure can affect a steam pressure gauge reading depending on the dis-
tance from the steam boiler connec- tion. Hydrostatic pressure must also be
considered when sizing circulating pumps for hot water heating systems in
multiple-story buildings.
25.What are three types of heat transfer that occur in a boiler? - ANSWER ✔
conduction, convection, and radiation
26.What is the function of a backflow preventer? - ANSWER ✔ is a boiler
accessory that prevents the flow of water back to the potable water supply. A
backflow preventer is located on the makeup water supply line and functions
like a check valve to allow water flow in one direction only.
27.Why are expansion bends sometimes required on steam lines? - ANSWER
✔ are sometimes required on steam lines to allow for the expansion and
contraction which occurs from temperature variation.
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. What is the first thing a boiler operator must do when taking over a shift? -
ANSWER ✔ Report to work 10 to 15 minutes early. Check the water level
on all the boilers on the line by blowing down the gauge glass, water
column, and low water fuel cutoff.
2. What are different ways of getting water into a boiler? - ANSWER ✔ are the
vacuum pump, feedwater pump, automatic city water makeup feeder, and
hand-operated city water makeup valve.
3. What is the function of a pressure control? - ANSWER ✔ The pressure
control is sensitive to pressure and controls the boiler operating range. It
starts and stops the burner on steam pressure demand.
4. How are safety valves tested? - ANSWER ✔ tested by hand or by pressure.
5. How often should safety valves be tested? - ANSWER ✔ 2. low pressure
boilers should be tested by hand once every 30 days the boiler is in
operation. The ASME code also recommends the testing of safety valves
under pressure once a year, preferably before the start of the heating season.
In addition to the ASME code, safety valves should be tested according to
recommendations of the local boiler inspector.
,6. 6.What is the function of a low water fuel cutoff? - ANSWER ✔ to shut the
burner off to protect the boiler heating surface from becoming overheated
due to low water in the boiler.
7. How is a low water fuel cutoff tested? - ANSWER ✔ The two methods of
testing a low water fuel cutoff are by hand or by an evaporation test.
8. When should a safety valve pop on a low pressure steam boiler? - ANSWER
✔ A safety valve must pop (open) whenever pressure exceeds the safety
valve setting to prevent the boiler from exceeding its MAWP.
9. what pressure should a safety valve pop on a low pressure steam boiler? -
ANSWER ✔ The safety valves on low pressure steam boilers are set to pop
open at 15 psi
10.what does
11."purging the furnace'' mean ? - ANSWER ✔ when the burner fan blows air
into the furnace to remove any mixture of gases or fumes of a combustible
nature that might cause a furnace explosion
12.SUPERHEATER DRAIN - ANSWER ✔ Valve found on the superheater
header outlet. Used to maintain flow throughout the superheater during start-
up and shutdown
13.SURFACE BLOWDOWN VALVE - ANSWER ✔ Used to remove
impurities from the surface of the water in a steam and water drum.
,14.SURFACE CONDENSER - ANSWER ✔ A shell-and-tube vessel used to
reduce the exhaust pressure on the outlet end of turbines or engines
15.SURFACE TENSION - ANSWER ✔ Caused by impurities on the top of the
water in the steam and water drum
16.SUSPENSION SLING - ANSWER ✔ Used to support the drum of the HRT
boiler
17.SYNCHRONIZE - ANSWER ✔ To balance out combustion controls before
switching to automatic
18.TENSILE STRESS - ANSWER ✔ Occurs when two forces of equal
intensity act on an object, pulling in opposite directions. Affects boiler plates
and staybolts
19.THERM - ANSWER ✔ Unit used to measure BTU content of natural gas. A
therm has 100,000 BTU
20.THERMAL EFFICIENCY - ANSWER ✔ The ratio of the heat absorbed by
the boiler to the heat available in the fuel per unit of time
21.Field-erected boiler - ANSWER ✔ Boiler that must be erected in the field
because of its size & complexity
22.What are primary, secondary , and excess air? - ANSWER ✔ Primary air
controls the combustion rate, which determines the amount of fuel burned.
Secondary air controls combustion efficiency by controlling how completely
, the fuel is burned. Excess air is supplied to the burner above the theoretical
amount required to burn the fuel.
23.What is the function of a flame safeguard system? - ANSWER ✔ ? is burner
control equipment that monitors the burner start-up sequence and the main
flame during normal operation. The flame safeguard programmer se-
quences burner function in a set order including prepurge, ignition trials,
pilot flame-establishing period, main burner flame-establishing period, run
period, and postpurge.
24.What is hydrostatic pressure? - ANSWER ✔ is pressure caused by the
weight of water (approximately 0.433 psi per vertical foot). Hydrostatic
pressure can affect a steam pressure gauge reading depending on the dis-
tance from the steam boiler connec- tion. Hydrostatic pressure must also be
considered when sizing circulating pumps for hot water heating systems in
multiple-story buildings.
25.What are three types of heat transfer that occur in a boiler? - ANSWER ✔
conduction, convection, and radiation
26.What is the function of a backflow preventer? - ANSWER ✔ is a boiler
accessory that prevents the flow of water back to the potable water supply. A
backflow preventer is located on the makeup water supply line and functions
like a check valve to allow water flow in one direction only.
27.Why are expansion bends sometimes required on steam lines? - ANSWER
✔ are sometimes required on steam lines to allow for the expansion and
contraction which occurs from temperature variation.
