Question 1

Pneumatic pumps have limited passageways and can become fouled by solid objects, so rotating pumps are a practical solution.

Accepted Answer

A) True 
 B)False

Question 2

If a sewage pump or ejector serves a single-family dwelling, it must be capable of passing a solid at least 1½ inches in diameter and have a ____ minimum discharge pipe size.

Accepted Answer

A)  1½-inch
B)  2-inch
C)  3-inch
D)  4-inchE) A) and B)
F) None of the above B

Question 3

Which of the following is NOT a factor in the selection of a pump?

Accepted Answer

A)  volume of material to be displaced
B)  height the material must be lifted
C)  average rate of rainfall
D)  power supply availableE) None of the above
F) A) and D)

Question 4

The three model codes require that sewage pumps and ejectors have alarms that are audible, visual, or a combination of both for the high-level limit.

Accepted Answer

A) True 
 B)False

Question 5

If a sewage pump or ejector serves a commercial building, it must be capable of passing a 2-inch diameter solid and have a _____ minimum discharge pipe size.

Accepted Answer

A)  2-inch
B)  3-inch
C)  4-inch
D)  6-inchE) A) and B)
F) A) and C)

Question 6

Full-ported check valves installed in sewage systems to prevent backflow are called __________.

Accepted Answer

A)  RPZs
B)  atmospheric-type vacuum breakers
C)  double-check valve assemblies
D)  backwater valvesE) C) and D)
F) A) and D) D

Question 7

Sewage pumping stations are not prone to blockages and require little maintenance.

Accepted Answer

A) True 
 B)False

Question 8

If a sewage pump or ejector receives discharge from either a water closet or urinal, it must have a minimum capacity of ____ gallons per minute.

Accepted Answer

A)  10
B)  15
C)  20
D)  25E) B) and C)
F) A) and B)

Question 9

In which type of basin are the pump and fluid sensors are submerged in the waste?

Accepted Answer

A)  dry
B)  wet
C)  septic
D)  cisternE) A) and C)
F) B) and D) B

Question 10

_______ are installed as close to the pump as possible so that components can be easily removed from the system.

Accepted Answer

A)  Caps
B)  Tees
C)  Elbows
D)  UnionsE) A) and B)
F) B) and D)

Question 11

The vent for a pneumatic ejector must be vented separately to the outdoors.

Accepted Answer

A) True 
 B)False

Exam 21: Ejector Systems

Pneumatic pumps have limited passageways and can become fouled by solid objects, so rotating pumps are a practical solution.

Correct Answer
verified

If a sewage pump or ejector serves a single-family dwelling, it must be capable of passing a solid at least 1½ inches in diameter and have a ____ minimum discharge pipe size.

Correct Answer
verified
B

Which of the following is NOT a factor in the selection of a pump?

Correct Answer
verified

The three model codes require that sewage pumps and ejectors have alarms that are audible, visual, or a combination of both for the high-level limit.

Correct Answer
verified

If a sewage pump or ejector serves a commercial building, it must be capable of passing a 2-inch diameter solid and have a _____ minimum discharge pipe size.

Correct Answer
verified

Full-ported check valves installed in sewage systems to prevent backflow are called __________.

Correct Answer
verified
D

Sewage pumping stations are not prone to blockages and require little maintenance.

Correct Answer
verified

If a sewage pump or ejector receives discharge from either a water closet or urinal, it must have a minimum capacity of ____ gallons per minute.

Correct Answer
verified

In which type of basin are the pump and fluid sensors are submerged in the waste?

Correct Answer
verified
B

_______ are installed as close to the pump as possible so that components can be easily removed from the system.

Correct Answer
verified

The vent for a pneumatic ejector must be vented separately to the outdoors.

Correct Answer
verified

Exam 21: Ejector Systems

Pneumatic pumps have limited passageways and can become fouled by solid objects, so rotating pumps are a practical solution.

Correct AnswerverifiedShow Answer

If a sewage pump or ejector serves a single-family dwelling, it must be capable of passing a solid at least 1½ inches in diameter and have a ____ minimum discharge pipe size.

Correct AnswerverifiedB

Which of the following is NOT a factor in the selection of a pump?

Correct AnswerverifiedShow Answer

The three model codes require that sewage pumps and ejectors have alarms that are audible, visual, or a combination of both for the high-level limit.

Correct AnswerverifiedShow Answer

If a sewage pump or ejector serves a commercial building, it must be capable of passing a 2-inch diameter solid and have a _____ minimum discharge pipe size.

Correct AnswerverifiedShow Answer

Full-ported check valves installed in sewage systems to prevent backflow are called __________.

Correct AnswerverifiedD

Sewage pumping stations are not prone to blockages and require little maintenance.

Correct AnswerverifiedShow Answer

If a sewage pump or ejector receives discharge from either a water closet or urinal, it must have a minimum capacity of ____ gallons per minute.

Correct AnswerverifiedShow Answer

In which type of basin are the pump and fluid sensors are submerged in the waste?

Correct AnswerverifiedB

_______ are installed as close to the pump as possible so that components can be easily removed from the system.

Correct AnswerverifiedShow Answer

The vent for a pneumatic ejector must be vented separately to the outdoors.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified