exam 4. a coliform test measures which of the following? a.the presence of lead. b.the presence of...
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Exam 4
A coliform test measures which of the following?
A. The presence of lead.
B. The presence of carcinogens.
C. The presence of a group of bacteria present in human fecal waste.
D. It measures a wide variety of toxic substances found in supply water.
A coliform test measures which of the following?
A. The presence of lead.
B. The presence of carcinogens.
C. The presence of a group of bacteria present in human fecal waste.
D. It measures a wide variety of toxic substances found in supply water.
Which of the following typically indicates the presence of materials that pose a
serious health threat?
A. Foamability.
B. Hardness.
C. Turbidity.
D. Potability.
Which of the following typically indicates the presence of materials that pose a
serious health threat?
A. Foamability.
B. Hardness.
C. Turbidity.
D. Potability.
Which of the following statements about water acidity is correct?
A. It measured with a pH test.
B. Acidic water can corrode pipes.
C. Rain water is typically slightly acidic.
D. All of the above.
Which of the following statements about water acidity is correct?
A. It measured with a pH test.
B. Acidic water can corrode pipes.
C. Rain water is typically slightly acidic.
D. All of the above.
Which of the following is an effect of water hardness?
A. Clogging of the pipes due to scaling.
B. Deposits of calcium and magnesium on heat exchangers.
C. Interferes with the cleaning and lathering capabilities of detergents and soaps.
D. All of the above.
Which of the following is an effect of water hardness?
A. Clogging of the pipes due to scaling.
B. Deposits of calcium and magnesium on heat exchangers.
C. Interferes with the cleaning and lathering capabilities of detergents and soaps.
D. All of the above.
The required PSI for a toilet (fixture pressure = 15 PSI) on the tenth floor of an apartment building with a floor to floor height of 10 feet, would be which of the following?
A. 39 PSI.
B. 54 PSI.
C. 58.5 PSI.
D. 70 PSI.
The required PSI for a toilet (fixture pressure = 15 PSI) on the tenth floor of an apartment building with a floor to floor height of 10 feet, would be which of the following?
A. 39 PSI.
B. 54 PSI.
C. 58.5 PSI.
D. 70 PSI.
Which of the following supply water distributaries types refer to a system where a tank mounted on the roof
supplies water to the upper stories?
A. Upfeed.
B. Downfeed.
C. Pumped Upfeed.
D. Pneumatic tank.
Which of the following supply water distributaries types refer to a system where a tank mounted on the roof
supplies water to the upper stories?
A. Upfeed.
B. Downfeed.
C. Pumped Upfeed.
D. Pneumatic tank.
Which of the following valve types prevent the back flow of water, avoiding contamination of supply water?
A. Gate valve.
B. Globe valve
C. Check valve.
D. Angle valve.
Which of the following valve types prevent the back flow of water, avoiding contamination of supply water?
A. Gate valve.
B. Globe valve
C. Check valve.
D. Angle valve.
Which of the following valve types is required on hot water tanks?
A. Globe valve
B. Check valve.
C. Angle valve.
D. Pressure Release Valve.
Which of the following valve types is required on hot water tanks?
A. Globe valve
B. Check valve.
C. Angle valve.
D. Pressure Release Valve.
Which of the following is a characteristic of copper supply piping?
A. Higher fiction loss than steel.
B. Pipe connections are soldered.
C. Poor corrosion resistance.
D. All of the above.
Which of the following is a characteristic of copper supply piping?
A. Higher fiction loss than steel.
B. Pipe connections are soldered.
C. Poor corrosion resistance.
D. All of the above.
Which of the following is a characteristic of plastic supply piping?
A. Low cost.
B. Excellent corrosion resistance.
C. Some codes do not allow plastic pipes for water supply systems.
D. All of the above.
Which of the following is a characteristic of plastic supply piping?
A. Low cost.
B. Excellent corrosion resistance.
C. Some codes do not allow plastic pipes for water supply systems.
D. All of the above.
When a siphon jet is used with a flush valve, it is called which of the following?
A. Flushometer.
B. Blowout.
C. Flush tank.
D. Water closets.
When a siphon jet is used with a flush valve, it is called which of the following?
A. Flushometer.
B. Blowout.
C. Flush tank.
D. Water closets.
A trap is required on which of the following?
A. Toilets.
B. Bathtubs.
C. Lavatories.
D. All of the above.
A trap is required on which of the following?
A. Toilets.
B. Bathtubs.
C. Lavatories.
D. All of the above.
Which of the following is a function of a trap?
A. Overflow release.
B. Reducing pipe corrosion.
C. Prevents sewer gases from entering occupied space.
D. All of the above.
Which of the following is a function of a trap?
A. Overflow release.
B. Reducing pipe corrosion.
C. Prevents sewer gases from entering occupied space.
D. All of the above.
Which of the following is used in place of a trap where discharged waste contains materials that can cause
problems in sewage treatment?
A. Interceptor.
B. Sewage injector.
C. Cleanout.
D. Check valve.
Which of the following is used in place of a trap where discharged waste contains materials that can cause
problems in sewage treatment?
A. Interceptor.
B. Sewage injector.
C. Cleanout.
D. Check valve.
Which of the following is a function served by venting in the plumbing system?
A. Prevents siphoning of trap water.B. Reduces corrosion and buildup of
slim.C. Aids the flow of large volumes of liquid
through drain pipes by relieving gas pressure that could build up ahead of the water as it moves.
D. All of the above.
Which of the following is a function served by venting in the plumbing system?
A. Prevents siphoning of trap water.B. Reduces corrosion and buildup of
slim.C. Aids the flow of large volumes of liquid
through drain pipes by relieving gas pressure that could build up ahead of the water as it moves.
D. All of the above.
The typical slope for branch lines in the drainage system is which of the following?
A. Usually 1/4” per foot.B. 1” to 2” per foot.C. 1:12.D. 1:20.
The typical slope for branch lines in the drainage system is which of the following?
A. Usually 1/4” per foot.B. 1” to 2” per foot.C. 1:12.D. 1:20.
Which of the following refers to the section of the soil stack above the last fixture?
A. Fresh air inlet.B. Vent Stack.C. Waste stack.D. Stack vent.
Which of the following refers to the section of the soil stack above the last fixture?
A. Fresh air inlet.B. Vent Stack.C. Waste stack.D. Stack vent.
Which of the following is used when the elevation of the sewer connection is higher then the lowest fixture?
A. Cesspool.B. Seepage pit.C. Sewage ejector.D. Recharge basin.
Which of the following is used when the elevation of the sewer connection is higher then the lowest fixture?
A. Cesspool.B. Seepage pit.C. Sewage ejector.D. Recharge basin.
A leach field should be placed in which of the following locations?
A. In clay soil.B. In a wooded area, uphill from the
building served.C. Downhill from the building, in an open,
grasses area.D. In the basement of the building
served.
A leach field should be placed in which of the following locations?
A. In clay soil.B. In a wooded area, uphill from the
building served.C. Downhill from the building, in an open,
grasses area.D. In the basement of the building
served.
Gutter sizing is based on which of the following?
A. Projected roof area.B. Maximum rainfall in an one hour
period.C. Gutter slope.D. All of the above.
Gutter sizing is based on which of the following?
A. Projected roof area.B. Maximum rainfall in an one hour
period.C. Gutter slope.D. All of the above.
Which of the following is a function of the storm drainage system?
A. Preventing storm water from dripping on people at the entrances.
B. Preventing rain water from washing away soil from the foundation.
C. Preventing rain water from running down walls and causing leaks at windows or other penetrations.
D. All of the above.
Which of the following is a function of the storm drainage system?
A. Preventing storm water from dripping on people at the entrances.
B. Preventing rain water from washing away soil from the foundation.
C. Preventing rain water from running down walls and causing leaks at windows or other penetrations.
D. All of the above.
Which of the following is a characteristic of heat detectors?
A. Prone to false alarms.B. Very reliable.C. Fast acting in smoldering fires.D. All of the above.
Which of the following is a characteristic of heat detectors?
A. Prone to false alarms.B. Very reliable.C. Fast acting in smoldering fires.D. All of the above.
Which of the following is a characteristic of ionization detectors?
A. High reliability.B. Inexpensive.C. More sensitive then heat or smock
detectors.D. Not prone to false alarms.
Which of the following is a characteristic of ionization detectors?
A. High reliability.B. Inexpensive.C. More sensitive then heat or smock
detectors.D. Not prone to false alarms.
Which of the following is a characteristic of a dry pipe system?
A. Faster acting then a wet pipe system.B. Accidental water discharge is a
serious problem.C. Commonly used in unheated
buildings.D. All of the above.
Which of the following is a characteristic of a dry pipe system?
A. Faster acting then a wet pipe system.B. Accidental water discharge is a
serious problem.C. Commonly used in unheated
buildings.D. All of the above.
Which of the following is a characteristic of a pre-action system?
A. Extremely reliable.B. Eliminates the danger of accidental
discharge.C. Should not be used in rooms with
computers or other sensitive electronic equipment.
D. All of the above.
Which of the following is a characteristic of a pre-action system?
A. Extremely reliable.B. Eliminates the danger of accidental
discharge.C. Should not be used in rooms with
computers or other sensitive electronic equipment.
D. All of the above.
Which of the following is a characteristic of halogenated hydrocarbon (Halon), automatic gas
systems.
A. No clean up required after discharge.B. Slightly less expensive than carbon
dioxide system.C. No time delay in activation like carbon
dioxide system.D. All of the above.
Which of the following is a characteristic of halogenated hydrocarbon (Halon), automatic gas
systems.
A. No clean up required after discharge.B. Slightly less expensive than carbon
dioxide system.C. No time delay in activation like carbon
dioxide system.D. All of the above.
Which of the following is a characteristic of a wet pipe systems.
A. Fast acting.B. Accidental water discharge is possible.C. Very reliable.D. All of the above.
Which of the following is a characteristic of a wet pipe systems.
A. Fast acting.B. Accidental water discharge is possible.C. Very reliable.D. All of the above.
Which of the following is a characteristic of cable elevators.
A. Uses a counter weight.B. Requires a machine room at the
lowest stop.C. Limited to applications below 75 feet in
height.D. They generally have lower initial costs
then hydraulic elevators.
Which of the following is a characteristic of cable elevators.
A. Uses a counter weight.B. Requires a machine room at the
lowest stop.C. Limited to applications below 75 feet in
height.D. They generally have lower initial costs
then hydraulic elevators.
Which of the following is not a characteristic of hydrauclic elevators.
A. Can travel well beyond 30 stories.B. Does not require a penthouse above
the elevator shaft.C. They generally have higher operating
costs than a cable elevator.D. They are available in larger carrying
capacities than cable elevators.
Which of the following is not a characteristic of hydrauclic elevators.
A. Can travel well beyond 30 stories.B. Does not require a penthouse above
the elevator shaft.C. They generally have higher operating
costs than a cable elevator.D. They are available in larger carrying
capacities than cable elevators.
Which of the following codes govern elevator design?
A. Americans with disabilities act.B. NFPA No. 101 Life Safety Code.C. ANSIA 17.1 “Safety Code for
Elevators, Dumbwaiters, Escalators & Moving Walks.”
D. All of the above.
Which of the following codes govern elevator design?
A. Americans with disabilities act.B. NFPA No. 101 Life Safety Code.C. ANSIA 17.1 “Safety Code for
Elevators, Dumbwaiters, Escalators & Moving Walks.”
D. All of the above.
Which of the following is a characteristic of escalators?
A. Requires a discharge area of 6 to 8 feet for low speed applications and 10 to 12 feet for high speed.
B. Two-speed escalators are available.C. The standard incline angle in the USA
is 30 degrees.D. All of the above.
Which of the following is a characteristic of escalators?
A. Requires a discharge area of 6 to 8 feet for low speed applications and 10 to 12 feet for high speed.
B. Two-speed escalators are available.C. The standard incline angle in the USA
is 30 degrees.D. All of the above.
Which of the following statements about moving walkways is correct?
A. Available only in 4 foot widths.B. Incline is limited by definition to 5
degrees. C. Suitable for moving people, but not
suitcases.D. All of the above.
Which of the following statements about moving walkways is correct?
A. Available only in 4 foot widths.B. Incline is limited by definition to 5
degrees. C. Suitable for moving people, but not
suitcases.D. All of the above.
Which of the following is a characteristic of pneumatic tubes?
A. They are fast and efficient.B. They require a machine room to house
a compressor system.C. They are used to deliver paper
communications between two points.D. All of the above.
Which of the following is a characteristic of pneumatic tubes?
A. They are fast and efficient.B. They require a machine room to house
a compressor system.C. They are used to deliver paper
communications between two points.D. All of the above.