4th TSSA Part B - Unit 4 2025/2026 Exam
Questions with Detailed Verified
Answers (100% Correct Answers) |
Already Graded A+
Larger capacity, high pressure fuel trains are - 🧠ANSWER ✔✔more
complex
The main burner test firing valve should be opened - 🧠ANSWER ✔✔before
starting the main burner
What is the recommended boiler water pH for wet layup? - 🧠ANSWER
✔✔10
R4B04-03-03-07 Failure to _____ the furnace thoroughly before light-up
can cause a furnace explosion. - 🧠ANSWER ✔✔purge
R4B04-05-02-01 When cooling down a steam boiler that has been taken
out of service, a vent valve on a steam drum should be opened to: -
🧠ANSWER ✔✔Prevent a vacuum from forming in the boiler
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, How often should operator rounds be performed? - 🧠ANSWER ✔✔1 to 3
times per shift
What should Power Engineers carry at all times? - 🧠ANSWER ✔✔a
flashlight
When a power failure occurs, control valves - 🧠ANSWER ✔✔go to a fail-
safe position.
When a combustion air opening is equipped with dampers, the dampers
must be - 🧠ANSWER ✔✔interlocked with the burner, and fully open before
starting the boiler.
New boilers require a _____________ and a _____________ dry-out
before entering operation. - 🧠ANSWER ✔✔boil-out, refractory
R4B04-03-03-11 If a steam boiler is in service and no water level shows in
the gauge glass, the first action would be to: - 🧠ANSWER ✔✔determine
whether the gauge glass is completely full or completely empty.
Because natural gas is colourless and odourless, ___________ is added to
the gas so that it is easier to detect a leak. - 🧠ANSWER ✔✔mercaptan
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
Questions with Detailed Verified
Answers (100% Correct Answers) |
Already Graded A+
Larger capacity, high pressure fuel trains are - 🧠ANSWER ✔✔more
complex
The main burner test firing valve should be opened - 🧠ANSWER ✔✔before
starting the main burner
What is the recommended boiler water pH for wet layup? - 🧠ANSWER
✔✔10
R4B04-03-03-07 Failure to _____ the furnace thoroughly before light-up
can cause a furnace explosion. - 🧠ANSWER ✔✔purge
R4B04-05-02-01 When cooling down a steam boiler that has been taken
out of service, a vent valve on a steam drum should be opened to: -
🧠ANSWER ✔✔Prevent a vacuum from forming in the boiler
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, How often should operator rounds be performed? - 🧠ANSWER ✔✔1 to 3
times per shift
What should Power Engineers carry at all times? - 🧠ANSWER ✔✔a
flashlight
When a power failure occurs, control valves - 🧠ANSWER ✔✔go to a fail-
safe position.
When a combustion air opening is equipped with dampers, the dampers
must be - 🧠ANSWER ✔✔interlocked with the burner, and fully open before
starting the boiler.
New boilers require a _____________ and a _____________ dry-out
before entering operation. - 🧠ANSWER ✔✔boil-out, refractory
R4B04-03-03-11 If a steam boiler is in service and no water level shows in
the gauge glass, the first action would be to: - 🧠ANSWER ✔✔determine
whether the gauge glass is completely full or completely empty.
Because natural gas is colourless and odourless, ___________ is added to
the gas so that it is easier to detect a leak. - 🧠ANSWER ✔✔mercaptan
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
