Heating service exam Michigan 2025 UPDATE| COMPREHENSIVE
Heating service exam Michigan
QUESTIONS AND VERIFIED ANSWERS (COMPLETE SOLUTIONS)
Study online at https://quizlet.com/_fbw7i0
GUARANTEED SUCCESS |GRADE A+!!
1. On a low pressure residential steam boiler 15 pounds
the release device opens at?
2. If too much primary air is used the flame will Lift off the burner
3. What operates the heat anticipator in a low 24 volts a/c
voltage thermostat
4. A limit control is located where in the electri- Either the 24 or 120 V circuit
cal circuit
5. What is the usual oil pressure at the nozzle 100 PSIG
in a high pressure gun type oil burner
6. What license is required to perform a CSD-1 Mechanical contractor category 6
on a boiler that has an input rating of 1.7
MBTU
7. A psychrometer meter is what ? A Hygrometer consisting of a wet-bulb and
dry-bulb Thermometer, The difference in
the two readings used to determine the
atmospheric humidity
8. A psychrometric chart is a Chart where the various property of air is
plotted
9. Combustion is what type of process chemical
10. What percentage of oxygen is in the air 21%
11. A hand shut off valve in a gas line is used to A burner and pilot
turn gas on and off to
12. CGV is the abbreviation for Combustion gas valve
1/9
, Heating service exam Michigan
Study online at https://quizlet.com/_fbw7i0
13. The maximum safety drop out time for a Three minutes
thermocouple is
14. The bimetallic Strip of metal in a thermostat Invar
is made of copper and ?
15. What is the light sensitive material used in a Cadmium sulphide
cad cell
16. What is the resistance measured in a cad cell 100,000
in the absence of light
17. When operating a fuel oil furnace with a one Bypass plug should not be installed
pipe system what needs to take place at the
fuel pump ?
18. A gas drip leg must ? Not be smaller in diameter than the pipe
which it connects
19. All boilers shall have the portable water pro- A backflow preventer
tected with
20. Compared to national gas with the same Smaller
BTU rating, the orifice opening in an LP gas
fire furnace is ?
21. A thermostat that cycles too often or not Improper heat anticipator setting
enough indicates
22. The pressure regulator on a LP gas system is 11.0 w.c
set at
23. A fast acting type of gas valve is the _________ Solenoid
valve ?
2/9
Heating service exam Michigan
QUESTIONS AND VERIFIED ANSWERS (COMPLETE SOLUTIONS)
Study online at https://quizlet.com/_fbw7i0
GUARANTEED SUCCESS |GRADE A+!!
1. On a low pressure residential steam boiler 15 pounds
the release device opens at?
2. If too much primary air is used the flame will Lift off the burner
3. What operates the heat anticipator in a low 24 volts a/c
voltage thermostat
4. A limit control is located where in the electri- Either the 24 or 120 V circuit
cal circuit
5. What is the usual oil pressure at the nozzle 100 PSIG
in a high pressure gun type oil burner
6. What license is required to perform a CSD-1 Mechanical contractor category 6
on a boiler that has an input rating of 1.7
MBTU
7. A psychrometer meter is what ? A Hygrometer consisting of a wet-bulb and
dry-bulb Thermometer, The difference in
the two readings used to determine the
atmospheric humidity
8. A psychrometric chart is a Chart where the various property of air is
plotted
9. Combustion is what type of process chemical
10. What percentage of oxygen is in the air 21%
11. A hand shut off valve in a gas line is used to A burner and pilot
turn gas on and off to
12. CGV is the abbreviation for Combustion gas valve
1/9
, Heating service exam Michigan
Study online at https://quizlet.com/_fbw7i0
13. The maximum safety drop out time for a Three minutes
thermocouple is
14. The bimetallic Strip of metal in a thermostat Invar
is made of copper and ?
15. What is the light sensitive material used in a Cadmium sulphide
cad cell
16. What is the resistance measured in a cad cell 100,000
in the absence of light
17. When operating a fuel oil furnace with a one Bypass plug should not be installed
pipe system what needs to take place at the
fuel pump ?
18. A gas drip leg must ? Not be smaller in diameter than the pipe
which it connects
19. All boilers shall have the portable water pro- A backflow preventer
tected with
20. Compared to national gas with the same Smaller
BTU rating, the orifice opening in an LP gas
fire furnace is ?
21. A thermostat that cycles too often or not Improper heat anticipator setting
enough indicates
22. The pressure regulator on a LP gas system is 11.0 w.c
set at
23. A fast acting type of gas valve is the _________ Solenoid
valve ?
2/9
