BLACK SEAL HIGH PRESSURE UPDATED
EVALUATION EXAMS QUESTIONS AND ANSWERS
SURE A+
✔✔The pressuretrol: - ✔✔Turns the boiler on and off
✔✔A modulating pressure control is sensitive to: - ✔✔Pressure
✔✔A vaporstat is sensitive to: - ✔✔Gas Pressure
✔✔The low water fuel cut-off should be blown down: - ✔✔Daily
✔✔When the vaporstat starts operating, it activates the: - ✔✔Fuel line solenoid valve
✔✔A low water fuel cutoff: - ✔✔Shuts off the fuel supply
✔✔If a baffle breaks, what happens? - ✔✔Increase of furnace gases & stack
temperature
✔✔Natural draft is produced by: - ✔✔Difference in temperature outside chimney from
inside chimney
, ✔✔When would a high suction line be used in a fuel tank? - ✔✔When there is sludge or
water in the tank
✔✔If a draft fan is located between the boiler and chimney, what type of draft system is
it? - ✔✔Induced Draft
✔✔Smoke indicators are important because: - ✔✔Operator cannot view smoking
conditions
✔✔The main purpose of testing a safety valve is to: - ✔✔Make sure valve operates
freely
✔✔When is the most positive way of checking the water level in a boiler? - ✔✔Try
cocks
✔✔When testing a safety valve by hand, you must: - ✔✔Have at least 75% of popping
pressure
✔✔What prevents a furnace explosion? - ✔✔The purge cycle
✔✔What is the most important rule in operating boilers? - ✔✔Keep water at proper level
✔✔Ignition failure would cause activation of the: - ✔✔Purge Cycle
✔✔What is the capacity of a safety valve measured in? - ✔✔Lbs. of Steam/Hr
✔✔What # oil needs to be preheated with what piece of equipment? - ✔✔#6 oil with an
oil heater
✔✔Combustion air is controlled by: - ✔✔Inlet dampers, fan intake vanes and fan speed
✔✔What type of test is a hardness test? - ✔✔A titration test
✔✔How are the sections of a cast iron boiler put together? - ✔✔Push nipples & Bolts
✔✔Boiler fittings are important for: - ✔✔Safety only
✔✔If a license is expired, how long can it be expired before it is null and void? - ✔✔3
years
✔✔T/F: Thermostatic traps: remove air and cool condensate. - ✔✔True
✔✔How many days in advance can you renew your license? - ✔✔60
EVALUATION EXAMS QUESTIONS AND ANSWERS
SURE A+
✔✔The pressuretrol: - ✔✔Turns the boiler on and off
✔✔A modulating pressure control is sensitive to: - ✔✔Pressure
✔✔A vaporstat is sensitive to: - ✔✔Gas Pressure
✔✔The low water fuel cut-off should be blown down: - ✔✔Daily
✔✔When the vaporstat starts operating, it activates the: - ✔✔Fuel line solenoid valve
✔✔A low water fuel cutoff: - ✔✔Shuts off the fuel supply
✔✔If a baffle breaks, what happens? - ✔✔Increase of furnace gases & stack
temperature
✔✔Natural draft is produced by: - ✔✔Difference in temperature outside chimney from
inside chimney
, ✔✔When would a high suction line be used in a fuel tank? - ✔✔When there is sludge or
water in the tank
✔✔If a draft fan is located between the boiler and chimney, what type of draft system is
it? - ✔✔Induced Draft
✔✔Smoke indicators are important because: - ✔✔Operator cannot view smoking
conditions
✔✔The main purpose of testing a safety valve is to: - ✔✔Make sure valve operates
freely
✔✔When is the most positive way of checking the water level in a boiler? - ✔✔Try
cocks
✔✔When testing a safety valve by hand, you must: - ✔✔Have at least 75% of popping
pressure
✔✔What prevents a furnace explosion? - ✔✔The purge cycle
✔✔What is the most important rule in operating boilers? - ✔✔Keep water at proper level
✔✔Ignition failure would cause activation of the: - ✔✔Purge Cycle
✔✔What is the capacity of a safety valve measured in? - ✔✔Lbs. of Steam/Hr
✔✔What # oil needs to be preheated with what piece of equipment? - ✔✔#6 oil with an
oil heater
✔✔Combustion air is controlled by: - ✔✔Inlet dampers, fan intake vanes and fan speed
✔✔What type of test is a hardness test? - ✔✔A titration test
✔✔How are the sections of a cast iron boiler put together? - ✔✔Push nipples & Bolts
✔✔Boiler fittings are important for: - ✔✔Safety only
✔✔If a license is expired, how long can it be expired before it is null and void? - ✔✔3
years
✔✔T/F: Thermostatic traps: remove air and cool condensate. - ✔✔True
✔✔How many days in advance can you renew your license? - ✔✔60
