P99 LOW PRESSURE BOILERS EVALUATION TEST UPDATED
EXAM QUESTIONS AND ANSWERS GRADED A+
✔✔Steam returning to the vacuum tank could cause the condensate pump to become: -
✔✔steambound
✔✔in a float thermostatic trap, the float rises to discharge - ✔✔condensate
✔✔a steam trap the fails to open causes the heating unit to become - ✔✔waterlogged
✔✔when cleaning a fuel oil strainer, the ____ must be carefully replaced to prevent air
from entering the system - ✔✔gasket
✔✔When using _____ draft, the boiler is limited in the amount of fuel that can be
burned - ✔✔natural
✔✔____ in the boiler water causes corrosion and pitting of the boiler metal - ✔✔Oxygen
✔✔water is ____ to reduce the amount of oxygen - ✔✔grated
✔✔Fuel oil is removed from the steam and water side of a boiler by using ___. -
✔✔Caustic soda
✔✔the boiler pressure should always be ____ the header pressure when cutting a
boiler in on the line - ✔✔slightly below
✔✔After blowing down the water column and gauge glass the water should _____ the
gauge glass - ✔✔quickly enter
✔✔a steambound pump is caused by - ✔✔excessive water pressure
✔✔the boiler must be ____ when the low water fuel cutoff is blown down - ✔✔firing
✔✔the low water fuel cutoff should be tested - ✔✔daily
✔✔after testing the flame scanner - ✔✔reset the programmer
✔✔during the evaporation test, the ___ is secured - ✔✔gauge glass inlet
✔✔During boiler inspection, the main steam stop valves are _____. - ✔✔closed, locked,
and tagged
, ✔✔the _____ must be covered with water before water can be added safely -
✔✔heating surface
✔✔a steam boiler safety valve is rated in ___ relieved per hour - ✔✔pounds of steam
✔✔the ____ tank is normally half full of water to maintain the correct water level in the
forced circulation hot water heating system - ✔✔compression
✔✔relief valves should be manually tested - ✔✔every 30 days
✔✔the temperature-pressure gauge indicates the temperature and pressure if the water
- ✔✔leaving the boiler
✔✔a ______ prevents natural circulation when hot water is not being pumped through
the forced circulation hot water system - ✔✔flow control valve
✔✔Absorption refrigeration systems use ____ as a refrigerant - ✔✔lithium bromide and
water
✔✔an absorption refrigeration system includes everything but a ____ - ✔✔compressor
✔✔in indirect cooling systems, ____ used as a medium must be kept above 32 F -
✔✔water
✔✔When the steam releases heat in a heat exchanger, it turns to _____ -
✔✔condensate
✔✔i'm most states, ____ safety valves are permitted on steam boilers - ✔✔spring
loaded pop off
✔✔The safety valve on a low pressure boiler is designed to open when pressure in the
boiler exceeds ___ - ✔✔the safety valve setting
✔✔An auxiliary low-water fuel cutoff is installed ___. - ✔✔slightly below the primary low
water fuel cutoff
✔✔When burning No.6 fuel oil, the strainers should be cleaned at least once every
_____ hours. - ✔✔24
✔✔the primary function of the boiler management and control system is -
✔✔combustion safety
✔✔Draft gauge measurements are expressed in inches of ___. - ✔✔water column
EXAM QUESTIONS AND ANSWERS GRADED A+
✔✔Steam returning to the vacuum tank could cause the condensate pump to become: -
✔✔steambound
✔✔in a float thermostatic trap, the float rises to discharge - ✔✔condensate
✔✔a steam trap the fails to open causes the heating unit to become - ✔✔waterlogged
✔✔when cleaning a fuel oil strainer, the ____ must be carefully replaced to prevent air
from entering the system - ✔✔gasket
✔✔When using _____ draft, the boiler is limited in the amount of fuel that can be
burned - ✔✔natural
✔✔____ in the boiler water causes corrosion and pitting of the boiler metal - ✔✔Oxygen
✔✔water is ____ to reduce the amount of oxygen - ✔✔grated
✔✔Fuel oil is removed from the steam and water side of a boiler by using ___. -
✔✔Caustic soda
✔✔the boiler pressure should always be ____ the header pressure when cutting a
boiler in on the line - ✔✔slightly below
✔✔After blowing down the water column and gauge glass the water should _____ the
gauge glass - ✔✔quickly enter
✔✔a steambound pump is caused by - ✔✔excessive water pressure
✔✔the boiler must be ____ when the low water fuel cutoff is blown down - ✔✔firing
✔✔the low water fuel cutoff should be tested - ✔✔daily
✔✔after testing the flame scanner - ✔✔reset the programmer
✔✔during the evaporation test, the ___ is secured - ✔✔gauge glass inlet
✔✔During boiler inspection, the main steam stop valves are _____. - ✔✔closed, locked,
and tagged
, ✔✔the _____ must be covered with water before water can be added safely -
✔✔heating surface
✔✔a steam boiler safety valve is rated in ___ relieved per hour - ✔✔pounds of steam
✔✔the ____ tank is normally half full of water to maintain the correct water level in the
forced circulation hot water heating system - ✔✔compression
✔✔relief valves should be manually tested - ✔✔every 30 days
✔✔the temperature-pressure gauge indicates the temperature and pressure if the water
- ✔✔leaving the boiler
✔✔a ______ prevents natural circulation when hot water is not being pumped through
the forced circulation hot water system - ✔✔flow control valve
✔✔Absorption refrigeration systems use ____ as a refrigerant - ✔✔lithium bromide and
water
✔✔an absorption refrigeration system includes everything but a ____ - ✔✔compressor
✔✔in indirect cooling systems, ____ used as a medium must be kept above 32 F -
✔✔water
✔✔When the steam releases heat in a heat exchanger, it turns to _____ -
✔✔condensate
✔✔i'm most states, ____ safety valves are permitted on steam boilers - ✔✔spring
loaded pop off
✔✔The safety valve on a low pressure boiler is designed to open when pressure in the
boiler exceeds ___ - ✔✔the safety valve setting
✔✔An auxiliary low-water fuel cutoff is installed ___. - ✔✔slightly below the primary low
water fuel cutoff
✔✔When burning No.6 fuel oil, the strainers should be cleaned at least once every
_____ hours. - ✔✔24
✔✔the primary function of the boiler management and control system is -
✔✔combustion safety
✔✔Draft gauge measurements are expressed in inches of ___. - ✔✔water column
