MEP Final Exam Prep: In-Depth Review and Test Strategies
The volume of air-flowing through the ductwork in a forced-air system is typically stated in . - correct
answer ✔✔CFM
A boiler that has water flow through a series of tubes that are heated by hot combustion gases which
surrounds them within the tank. - correct answer ✔✔Water-tube
Device for monitoring water level in a steam boiler, which is installed so that the lowest level visible in
the device is above the low (danger) level in the boiler. - correct answer ✔✔glass gauge
Device used in (HOT WATER) steam systems to automatically release pressure built up due to steam
within the boiler. It is rated in BTUs relieved per hour and is set to open at a given pressure. - correct
answer ✔✔safety relief valve
Device used for monitoring conditions (typically pressure and temperature) within the system. - correct
answer ✔✔gauge
Device used to force accumulated sludge, scale, and sediment build-up out of a boiler. - correct answer
✔✔blowdown valve
Device used to add air into a steam system when a boiler is shut down to negate the external
(atmospheric) pressure. - correct answer ✔✔vacuum breaker
Device in a hot water boiler that controls water temperature through limit setpoints. - correct answer
✔✔aquastat
Device used in (GAS) steam systems to release pressure built up due to steam within the boiler. It is rated
in how many pounds of steam it can vent in an hour at a rated pressure. - correct answer ✔✔safety
valve
A mechanical component in a steam heating system that recovers heat that would otherwise be lost
throughout the system to pre-heat the boiler feed water. - correct answer ✔✔economizer
, A two-pipe hydronic system which has a supply and return line, and the return line provides the shortest
path back to the boiler for the liquid (first unit supplied is the first unit returned, and vice versa). -
correct answer ✔✔direct return system
There is no difference between PSI and PSIG. - correct answer ✔✔false
A hydronic system which has a single, continuous pipe that feeds each of the terminal devices on the
system, and continues on as the return pipe back to the boiler. - correct answer ✔✔series loop system
In a forced air system, a pressurized chamber that contains gas (typically just air) at a positive pressure
which is used instead of ductwork to distribute air throughout a space is known as: - correct answer
✔✔plenum
Low pressure boilers are used for process applications (power generation, etc.). - correct answer
✔✔false
through waves - correct answer ✔✔radiation
through direct contact - correct answer ✔✔conduction
through air movement - correct answer ✔✔convection
Which of the following is NOT one of the 5 basic "requirements" of comfort? - correct answer ✔✔IAQ
The component of the refrigeration cycle which flashes the liquid into a vapor/liquid mixture by releasing
pressure on it which also cools the mixture. - correct answer ✔✔Metering device
Any temperature added to a gas above the boiling point of its liquid state. - correct answer
✔✔superheat
The volume of air-flowing through the ductwork in a forced-air system is typically stated in . - correct
answer ✔✔CFM
A boiler that has water flow through a series of tubes that are heated by hot combustion gases which
surrounds them within the tank. - correct answer ✔✔Water-tube
Device for monitoring water level in a steam boiler, which is installed so that the lowest level visible in
the device is above the low (danger) level in the boiler. - correct answer ✔✔glass gauge
Device used in (HOT WATER) steam systems to automatically release pressure built up due to steam
within the boiler. It is rated in BTUs relieved per hour and is set to open at a given pressure. - correct
answer ✔✔safety relief valve
Device used for monitoring conditions (typically pressure and temperature) within the system. - correct
answer ✔✔gauge
Device used to force accumulated sludge, scale, and sediment build-up out of a boiler. - correct answer
✔✔blowdown valve
Device used to add air into a steam system when a boiler is shut down to negate the external
(atmospheric) pressure. - correct answer ✔✔vacuum breaker
Device in a hot water boiler that controls water temperature through limit setpoints. - correct answer
✔✔aquastat
Device used in (GAS) steam systems to release pressure built up due to steam within the boiler. It is rated
in how many pounds of steam it can vent in an hour at a rated pressure. - correct answer ✔✔safety
valve
A mechanical component in a steam heating system that recovers heat that would otherwise be lost
throughout the system to pre-heat the boiler feed water. - correct answer ✔✔economizer
, A two-pipe hydronic system which has a supply and return line, and the return line provides the shortest
path back to the boiler for the liquid (first unit supplied is the first unit returned, and vice versa). -
correct answer ✔✔direct return system
There is no difference between PSI and PSIG. - correct answer ✔✔false
A hydronic system which has a single, continuous pipe that feeds each of the terminal devices on the
system, and continues on as the return pipe back to the boiler. - correct answer ✔✔series loop system
In a forced air system, a pressurized chamber that contains gas (typically just air) at a positive pressure
which is used instead of ductwork to distribute air throughout a space is known as: - correct answer
✔✔plenum
Low pressure boilers are used for process applications (power generation, etc.). - correct answer
✔✔false
through waves - correct answer ✔✔radiation
through direct contact - correct answer ✔✔conduction
through air movement - correct answer ✔✔convection
Which of the following is NOT one of the 5 basic "requirements" of comfort? - correct answer ✔✔IAQ
The component of the refrigeration cycle which flashes the liquid into a vapor/liquid mixture by releasing
pressure on it which also cools the mixture. - correct answer ✔✔Metering device
Any temperature added to a gas above the boiling point of its liquid state. - correct answer
✔✔superheat
