NYC CUSTODIAN ENGINEER BOOK
( CLIFF BOOK ) EXAM
QUESTIONS AND CORRECT ANSWERS
LATEST GUIDE 2026/2027 GRADED A+ .
, 1. Pressutrol✔✔ Correct answer An electrical device whose function is to keep boiler steam pressure from exceeding the predeter- mied
pressure
2. Treat boiler water✔✔ Correct answer Sodium Sulphite is used to
3. 9 to 11 ... 10 to 12✔✔ Correct answer Boiler water should have a PH of
4. Vaporstat✔✔ Correct answer the unit of a rotary cup oil burner that senses primary air failure is the ...
5. Directly as the pump speed✔✔ Correct answer The quantity of a water delivered by a centrifugal pump varies...
6. Converting velocity head into pressure head✔✔ Correct answer The volute casing of a centrifugal pump serves the
main purpose of ...
7. Humidity✔✔ Correct answer The amount of water vapor mixed with dry air in the atmosphere is known as ...
8. 144 BTU✔✔ Correct answer When water freezes at 32F the amount o of heat lost per lb of water is...
9. Difference in pressure✔✔ Correct answer A Manometer measures
10. 12%✔✔ Correct answer The carbon dioxide content of the flue gasses of an eflciently fired boiler should measure about...
11. Amount of heat lost✔✔ Correct answer When a boiler setting leaks air, there is an increase in the ...
12. Red✔✔ Correct answer The piping through which water from private wells is delivered to swimming pools must be painted ...
13. Calcium Hypochorite✔✔ Correct answer A chemical commonly used to disinfect swimming pools is...
14. 3/4 inch✔✔ Correct answer Gas range piping should have a minimum diameter of ...
15. Hygrometer✔✔ Correct answer An instrument that measures relative humidity is called..
16. 34✔✔ Correct answer The united inches for a pained of glass that measures 14 inches by 20 inches is...
( CLIFF BOOK ) EXAM
QUESTIONS AND CORRECT ANSWERS
LATEST GUIDE 2026/2027 GRADED A+ .
, 1. Pressutrol✔✔ Correct answer An electrical device whose function is to keep boiler steam pressure from exceeding the predeter- mied
pressure
2. Treat boiler water✔✔ Correct answer Sodium Sulphite is used to
3. 9 to 11 ... 10 to 12✔✔ Correct answer Boiler water should have a PH of
4. Vaporstat✔✔ Correct answer the unit of a rotary cup oil burner that senses primary air failure is the ...
5. Directly as the pump speed✔✔ Correct answer The quantity of a water delivered by a centrifugal pump varies...
6. Converting velocity head into pressure head✔✔ Correct answer The volute casing of a centrifugal pump serves the
main purpose of ...
7. Humidity✔✔ Correct answer The amount of water vapor mixed with dry air in the atmosphere is known as ...
8. 144 BTU✔✔ Correct answer When water freezes at 32F the amount o of heat lost per lb of water is...
9. Difference in pressure✔✔ Correct answer A Manometer measures
10. 12%✔✔ Correct answer The carbon dioxide content of the flue gasses of an eflciently fired boiler should measure about...
11. Amount of heat lost✔✔ Correct answer When a boiler setting leaks air, there is an increase in the ...
12. Red✔✔ Correct answer The piping through which water from private wells is delivered to swimming pools must be painted ...
13. Calcium Hypochorite✔✔ Correct answer A chemical commonly used to disinfect swimming pools is...
14. 3/4 inch✔✔ Correct answer Gas range piping should have a minimum diameter of ...
15. Hygrometer✔✔ Correct answer An instrument that measures relative humidity is called..
16. 34✔✔ Correct answer The united inches for a pained of glass that measures 14 inches by 20 inches is...
