MN Boiler Operator Exam Prep 1A + Chief
Study online at https://quizlet.com/_c7d5ep
1. What is meant by A.S.M.E.? American Society of Me-
chanical Engineers
2. In the event a boiler would explode, overheat due to Code Administration and
a low water condition, or a furnace explosion, etc. and Inspection Services (Boiler
before repairs are made or the boiler is attempted to Inspection)
be returned to service, who should be notified?
3. A steam flow meter measures? quantity of steam
4. Why are water tube boilers considered less dangerous contain less water
than fire tube boilers?
5. What is the purpose of flooding a super-heater on prevent dry firing of the
start up? super-heater
6. What is the purpose of de-superheating? control temperature of
steam
7. An economizer is a heat-exchanger located in the gas passage between the
boiler and the stack
8. On some hot water boilers a three-way mixing valve is controls temperature of
used. What is its purpose? water circulating in heat-
ing system
9. A hot water boiler is considered to be a high pressure exceeds 250 degrees
boiler when it: and/or 160 psi
10. If it is necessary to test the relieving capacity of a an accumulation test is put
safety valve: on boiler
11. The switch that proves combustion air and is found in air switch (sail) switch
the windbox entering the furnace is
, MN Boiler Operator Exam Prep 1A + Chief
Study online at https://quizlet.com/_c7d5ep
12. An indication of boiler efficiency is obtained from temperature of exit gases
13. As the pressure of steam is increased, the volume is decreased
14. Before starting a fire, when firing with oil, pulverized purge all unburned gases
fuel, or gas, what precaution must be taken with a of the boiler
furnace?
15. A steam gauge dial must be graduated to at least what 150%
percent of the safe working pressure of the boiler?
16. Assuming all components in a hydronic system are air in the system
working, what would be the main reason be for no
heat?
17. What is a high temperature water boiler? water boiler operating
over 160 psi and/or 250
degrees Fahrenheit
18. What boiler attachment is used to increase the steam superheater
temperature above the temperature of the water from
which it is evaporated?
19. As the pressure increases, the density of the steam increases
20. When stop valves over 2 inches in diameter are used rising stem
on a boiler, they shall be
21. How can vaporization of the feed water from an open increase the suction head
feed water heater to the pump be eliminated? by either raising the feed
water heater or lowering
the pump
Study online at https://quizlet.com/_c7d5ep
1. What is meant by A.S.M.E.? American Society of Me-
chanical Engineers
2. In the event a boiler would explode, overheat due to Code Administration and
a low water condition, or a furnace explosion, etc. and Inspection Services (Boiler
before repairs are made or the boiler is attempted to Inspection)
be returned to service, who should be notified?
3. A steam flow meter measures? quantity of steam
4. Why are water tube boilers considered less dangerous contain less water
than fire tube boilers?
5. What is the purpose of flooding a super-heater on prevent dry firing of the
start up? super-heater
6. What is the purpose of de-superheating? control temperature of
steam
7. An economizer is a heat-exchanger located in the gas passage between the
boiler and the stack
8. On some hot water boilers a three-way mixing valve is controls temperature of
used. What is its purpose? water circulating in heat-
ing system
9. A hot water boiler is considered to be a high pressure exceeds 250 degrees
boiler when it: and/or 160 psi
10. If it is necessary to test the relieving capacity of a an accumulation test is put
safety valve: on boiler
11. The switch that proves combustion air and is found in air switch (sail) switch
the windbox entering the furnace is
, MN Boiler Operator Exam Prep 1A + Chief
Study online at https://quizlet.com/_c7d5ep
12. An indication of boiler efficiency is obtained from temperature of exit gases
13. As the pressure of steam is increased, the volume is decreased
14. Before starting a fire, when firing with oil, pulverized purge all unburned gases
fuel, or gas, what precaution must be taken with a of the boiler
furnace?
15. A steam gauge dial must be graduated to at least what 150%
percent of the safe working pressure of the boiler?
16. Assuming all components in a hydronic system are air in the system
working, what would be the main reason be for no
heat?
17. What is a high temperature water boiler? water boiler operating
over 160 psi and/or 250
degrees Fahrenheit
18. What boiler attachment is used to increase the steam superheater
temperature above the temperature of the water from
which it is evaporated?
19. As the pressure increases, the density of the steam increases
20. When stop valves over 2 inches in diameter are used rising stem
on a boiler, they shall be
21. How can vaporization of the feed water from an open increase the suction head
feed water heater to the pump be eliminated? by either raising the feed
water heater or lowering
the pump
