Unit8 Plant Auxiliary System Flashcards
One of the three main types of illumination is: Select one: a. Emergency lighting b. Ambient lighting c. General (uniform) lighting d. High intensity lighting
c. General (uniform) lighting
`Temperature relief devices limit the temperature in domestic hot water systems to no more than: Select one: a. the system temperature set point b. 79°C c. 99°C d. 121°C
c. 99°C
A luminaire is Select one: a. a measurement of reflected light b. a measurement of refracted light c. the SI term for "candle power" d. a complete lighting unit
d. a complete lighting unit
Some water closets are provided with flush tanks while others are equipped with: Select one: a. Float valves b. Flushometers c. Ball cocks d. Hush tubes
b. Flushometers
Corrugations in outside aluminum storm water piping are required to:
Select one:
a. Increase the flow of storm water
b. Decrease potential for blockage
c. Allow flexibility to prevent wind damage
d. Permit expansion of the aluminum
d. Permit expansion of the aluminum
Building codes generally limit the highest pressure permissible in plumbing systems to: Select one: a. 350 kPa b. 490 kPa c. 560 kPa d. 690 kPa
c. 560 kPa
When control of lighting from four locations is required:
Select one:
a. A single 4-way switch is used
b. The system must be an engineered design, according to the Canadian Electrical Code
c. A combination of 3-way switches and 4-way switches are used
d. four two-way switches are used
c. A combination of 3-way switches and 4-way switches are used
Direct lighting systems:
Select one:
a. Have a higher initial cost than indirect lighting
b. Have greater glare control
c. Are more energy efficient than indirect lighting
d. Produce shadow free light
c. Are more energy efficient than indirect lighting
The building water system that has a storage tank above the highest fixture in the system is called: Select one: a. An up-feed system b. A tankless constant pressure system c. A downfeed system d. A direct pressure system
c. A downfeed system
The back flow prevention method consisting of two independent check valves with an automatic operating pressure differential relief valve located between them is called: Select one: a. Air gap back flow prevention b. Double check valve c. Reduced pressure principle device d. Atmosphere vacuum breaker
c. Reduced pressure principle device
The NFPA Life Safety Code requires that emergency lighting be provided for means of exit in:
Select one:
a. Places of assembly of less than 300 people
b. All rental properties
c. Office buildings with occupancies of 300 or more people
d. All educational occupancies
d. All educational occupancies
The first step when repairing a faucet is:
Select one:
a. Make sure the pilot washer is intact
b. Shut off the water at the nearest isolation valve.
c. Unscrew the packing nut and remove the spindle.
d. Remove the washer from the end of the spindle.
e. Tigten the faucet with a wrench
b. Shut off the water at the nearest isolation valve.
What is the simplest way to stop sewer gas from coming out of floor drains? Select one: a. Pour a pail of water into the drain b. Cover the drain opening c. Have a plumber auger the vent pipe d. Install a drain plug
a. Pour a pail of water into the drain
Most municipal water distribution systems operate at pressures between: Select one: a. 350 and 490 kPa b. 250 and 350 kPa c. 490 and 690 kPa d. 590 and 602 kPa
a. 350 and 490 kPa
Building drainage systems
Select one:
a. have branch lines connected to the waste stack with 90° fittings.
b. have vent stacks that keep sewer gas from venting through the roof.
c. are vented to keep fluid from being drawn out of the traps
d. use a single pipe for waste, venting, and storm water
c. are vented to keep fluid from being drawn out of the traps
Negative pressure in a sanitary drainage system may result in: Select one: a. Clogging of drain pipes b. Build up of scale in water closets c. Loss of trap sealing water d. Forcing of sewer gases through traps
c. Loss of trap sealing water
The type of luminaire used in industrial installations and storage areas is the: Select one: a. Open reflector b. Ceiling mount wraparound c. Recessed troffer d. Luminaire
a. Open reflector
Occupancy sensors:
Select one:
a. Use timers for occupancy programming
b. Sense heat to turn a lighting circuit on
c. Are automatic switches
d. Are best suited where fluorescent lights are frequently turned on and off
c. Are automatic switches
Which of the following statements about a pressure relief valve in a building hot water system is FALSE?
Select one:
a. The valve may be installed anywhere in the hot water system close to the heater or tank
b. The valve opens when system pressure exceeds the valve set point.
c. The valve closes automatically when the water pressure drops below the valve set point
d. The relief valve may be isolated from the vessel it serves by means of a gate valve, for the purposes of maintenance.
d. The relief valve may be isolated from the vessel it serves by means of a gate valve, for the purposes of maintenance.
Most dimmer switches sold today:
Select one:
a. Divert some current through a variable resistor
b. Can be used with both incandescent or fluorescent lighting
c. Are solid state devices
d. Control lighting levels in response to changing levels of daylight.
c. Are solid state devices
Non-circulating potable hot water systems:
Select one:
a. waste large amounts of water before hot water is available at the fixtures
b. are used in large commercial buildings
c. eliminate hot water stagnation
d. require a hot water return line
a. waste large amounts of water before hot water is available at the fixtures
With regard to a constant pressure potable water system that uses a pneumatic tank, which of the following statements is FALSE?
Select one:
a. Water from the pump discharges into a pressurized tank
b. Use of this system is limited to larger buildings.
c. A system controller automatically starts a standby pump in the event of pump failure
d. The system has a pressure regulator to maintain a relatively constant pressure above the water level inside the tank
b. Use of this system is limited to larger buildings.
Temperature relief devices are effective in protecting domestic hot water systems from:
Select one:
a. Scale build up in the system
b. Flashing of water to steam when faucets are opened
c. Venting off air released from water during heating
d. Inadequate heating of the water
b. Flashing of water to steam when faucets are opened
In a circulating domestic hot water system, automatic air vents
Select one:
a. Relieve pressure from the hydro-pneumatic tanks
b. Remove air that is released when water is heated
c. Aerate the water
d. Keep air from entering the water, thus inhibiting corrosion
b. Remove air that is released when water is heated
Direct lighting systems:
Select one:
a. Have a higher initial cost than indirect lighting
b. Have greater glare control
c. Are more energy efficient than indirect lighting
d. Produce shadow free light
c. Are more energy efficient than indirect lighting
Most dimmer switches sold today:
Select one:
a. Divert some current through a variable resistor
b. Can be used with both incandescent or fluorescent lighting
c. Are solid state devices
d. Control lighting levels in response to changing levels of daylight.
c. Are solid state devices
Building drainage systems
Select one:
a. have branch lines connected to the waste stack with 90° fittings.
b. have vent stacks that keep sewer gas from venting through the roof.
c. are vented to keep fluid from being drawn out of the traps
d. use a single pipe for waste, venting, and storm water
c. are vented to keep fluid from being drawn out of the traps
Temperature relief devices limit the temperature in domestic hot water systems to no more than: Select one: a. the system temperature set point b. 79°C c. 99°C d. 121°C
c. 99°C
Traps are installed in sanitary drainage systems to
Select one:
a. Promote effective drainage of the sanitary fixtures
b. Allow easier alignment of the fixtures during installation
c. Catch rings and other valuables, so they can be retrieved
d. Prevent sewer gases from entering the building
d. Prevent sewer gases from entering the building
Which of the following statements about a pressure relief valve in a building hot water system is FALSE?
Select one:
a. The valve may be installed anywhere in the hot water system close to the heater or tank
b. The valve opens when system pressure exceeds the valve set point.
c. The valve closes automatically when the water pressure drops below the valve set point
d. The relief valve may be isolated from the vessel it serves by means of a gate valve, for the purposes of maintenance.
d. The relief valve may be isolated from the vessel it serves by means of a gate valve, for the purposes of maintenance.
The NFPA Life Safety Code requires that emergency lighting be provided for means of exit in:
Select one:
a. Places of assembly of less than 300 people
b. All rental properties
c. Office buildings with occupancies of 300 or more people
d. All educational occupancies
d. All educational occupancies
In a "direct" lighting system, all or most of the luminous intensity is: Select one: a. Reflected off the walls b. Directed down toward the work place c. Reflected off the ceiling d. Task lighting
b. Directed down toward the work place
The type of luminaire used in industrial installations and storage areas is the: Select one: a. Open reflector b. Ceiling mount wraparound c. Recessed troffer d. Luminaire
a. Open reflector
Which of the following statements about building footing drains is FALSE?
Select one:
a. Footing drains are installed to prevent ground water from accumulating around building foundations.
b. Footing drains are used to reduce the hydrostatic pressure on the walls below ground level.
c. The water collected by footing drains is directed to a remote area or into a sump.
d. Footing drains are only installed in wet climates.
d. Footing drains are only installed in wet climates.
Occupancy sensors:
Select one:
a. Use timers for occupancy programming
b. Sense heat to turn a lighting circuit on
c. Are automatic switches
d. Are best suited where fluorescent lights are frequently turned on and off
c. Are automatic switches
The back flow prevention method consisting of two independent check valves with an automatic operating pressure differential relief valve located between them is called: Select one: a. Air gap back flow prevention b. Double check valve c. Reduced pressure principle device d. Atmosphere vacuum breaker
c. Reduced pressure principle device
A deep seal plumbing trap has a water seal depth of: Select one: a. 5 cm b. 10 cm c. The outside diameter of the pipe d. The inside diameter of the pipe
b. 10 cm
When the maximum building demand for potable water is always less than the maximum flow available from a municipal or local distribution system, which of the following systems can be used?
Select one:
a. A constant pressure system with suction tank
b. A constant pressure system with pneumatic tank
c. A tank-less constant pressure system
d. A down-feed system
c. A tank-less constant pressure system
A common plumbing trap has a water seal depth of: Select one: a. 5 cm b. 10 cm c. The inside diameter of the pipe d. The outside diameter of the pipe
a. 5 cm
Negative pressure in a sanitary drainage system may result in: Select one: a. Clogging of drain pipes b. Build up of scale in water closets c. Loss of trap sealing water d. Forcing of sewer gases through traps
c. Loss of trap sealing water
Corrugations in outside aluminum storm water piping are required to:
Select one:
a. Increase the flow of storm water
b. Decrease potential for blockage
c. Allow flexibility to prevent wind damage
d. Permit expansion of the aluminum
d. Permit expansion of the aluminum
In a sanitary drainage system, a drain trap should be located within \_\_\_\_\_ of the fixture it serves. Select one: a. 750 mm b. 610 mm c. 1 m d. 50 cm
b. 610 mm
Some water closets are provided with flush tanks while others are equipped with: Select one: a. Float valves b. Flushometers c. Ball cocks d. Hush tubes
b. Flushometers
The first step when repairing a faucet is:
Select one:
a. Make sure the pilot washer is intact
b. Shut off the water at the nearest isolation valve.
c. Unscrew the packing nut and remove the spindle.
d. Remove the washer from the end of the spindle.
e. Tigten the faucet with a wrench
b. Shut off the water at the nearest isolation valve.
Ambient lighting can be improved by using both
Select one:
a. direct and indirect lighting
b. natural and ambient lighting
c. fluorescent and incandescent lighting
d. reflective and refractive lighting
a. direct and indirect lighting
The blow off valve in a storage heater is used to:
Select one:
a. Take potable water samples
b. Release steam should the heater malfunction, to keep steam from entering the plumbing fixtures
c. Remove sediment from the base of the heater
d. Relieve excess pressure in the heater, during periods of low hot water demand.
c. Remove sediment from the base of the heater
In a building plumbing system, the potable water pressure should not drop below: Select one: a. 100 kPa b. 175 kPa c. 350 kPa d. 250 kPa
b. 175 kPa
In large buildings, approximately what percentage of the electrical load is lighting? Select one: a. 60% b. 40% c. 70% d. 20%
a. 60%
Most municipal water distribution systems operate at pressures between: Select one: a. 350 and 490 kPa b. 250 and 350 kPa c. 490 and 690 kPa d. 590 and 602 kPa
a. 350 and 490 kPa
Most building regulations prohibit single pipe potable hot water piping to extend \_\_\_\_\_\_\_\_\_\_\_ in length from a hot water heater or hot water recirculating line. Select one: a. 15 feet b. 15 m c. 3 floors d. 4 floors
b. 15 m
The building water system that has a storage tank above the highest fixture in the system is called: Select one: a. An up-feed system b. A tankless constant pressure system c. A downfeed system d. A direct pressure system
c. A downfeed system
In a circulating domestic hot water system, automatic air vents
Select one:
a. Relieve pressure from the hydro-pneumatic tanks
b. Remove air that is released when water is heated
c. Aerate the water
d. Keep air from entering the water, thus inhibiting corrosion
b. Remove air that is released when water is heated
One of the three main types of illumination is: Select one: a. Emergency lighting b. Ambient lighting c. General (uniform) lighting d. High intensity lighting
c. General (uniform) lighting
Occupancy sensors typically use \_\_\_\_\_\_\_\_\_ for activation. Select one: a. Loud sounds b. Ultraviolet energy c. Ultrasonic energy d. Proximity sensors
c. Ultrasonic energy
Building codes generally limit the highest pressure permissible in plumbing systems to: Select one: a. 350 kPa b. 490 kPa c. 560 kPa d. 690 kPa
c. 560 kPa
What is the simplest way to stop sewer gas from coming out of floor drains? Select one: a. Pour a pail of water into the drain b. Cover the drain opening c. Have a plumber auger the vent pipe d. Install a drain plug
a. Pour a pail of water into the drain
A luminaire is Select one: a. a measurement of reflected light b. a measurement of refracted light c. the SI term for "candle power" d. a complete lighting unit
d. a complete lighting unit
When control of lighting from four locations is required:
Select one:
a. A single 4-way switch is used
b. The system must be an engineered design, according to the Canadian Electrical Code
c. A combination of 3-way switches and 4-way switches are used
d. four two-way switches are used
c. A combination of 3-way switches and 4-way switches are used
Which of the following statements about building footing drains is FALSE?
Select one:
a. Footing drains are installed to prevent ground water from accumulating around building foundations.
b. Footing drains are used to reduce the hydrostatic pressure on the walls below ground level.
c. The water collected by footing drains is directed to a remote area or into a sump.
d. Footing drains are only installed in wet climates.
d. Footing drains are only installed in wet climates.
Which of the following has a trap as an integral part of the fixture? Select one: a. A toilet b. A sink c. A roof drain d. A bathtub
a. A toilet
