WATER DISTRIBUTION GRADE 2 COMPLETE QUESTIONS
AND CORRECT ANSWERS | GRADED A+ | VERIFIED
ANSWERS | BRAND NEW VERSION!
In a traffic control work
A. may not be used for any work activity.
B. is used by pedestrians to pass through the work area.
C. provides maneuvering space for traffic.
D. provides an area to stage needed materials. Correct Answers C.
provides maneuvering space for traffic.
A pump making 32 strokes per minute discharges 600 gpm (2,270 Lpm).
if the speed is increased to 35 strokes per minute, what will the
discharge be in gpm (Lpm)
A. 550.63 gpm (2077.42 Lpm)
B. 656.25 gpm (2482.81 Lpm)
C. 1,119.86 gpm (4240.17Lpm)
D. 1,899.92 gpm (7063.74 Lpm) Correct Answers B. 656.25 gpm
(2482.81 Lpm)
Warmer water temps tend to
A. inhibit formation of disinfection by- products.
B. reduce chemical dosages.
C. decrease tubercle growth rate
D. increase biological growth rate. Correct Answers D. increase
biological growth rate.
,There is a chlorine leak downstream from the cylinder. following proper
safety procedures, which of the following should the operator do next.
A. check the amount of chlorine remaining in the cylinder.
B. close the cylinder valve securely.
C. chloramine formation
D. turn off the chlorinator water supply. Correct Answers B. close the
cylinder valve securely.
Adding free chlorine to water until its highest chlorine demand is
satisfied is known as?
A. free chlorine
B. chlorine residual
C. chloramine formation
D. break point chlorination Correct Answers D. break point chlorination
The practical maximum height to set a pump above water level is.
A. 15-25 ft (4.5-7.6 m)
B. 40 ft (12 m)
C. 75 ft (23 m)
D. 2-6 ft (0.6-1.8 m) Correct Answers A. 15-25 ft (4.5-7.6 m)
What mineral (other than iron) usually occurs in low concentrations in
natural water and causes problems on bathroom fixtures or fabrics.
, A. magnesium
B. manganese
C. aluminum
D. compound meter Correct Answers A. magnesium
When taking a gas chlorinator out of service, an operator should.
A. start at the chlorine contact point and shut off all valves working
backwards to the tank.
B. shut the water supply off before closing down the chlorine cylinder.
C. disconnect the electricity first, but no other special order is required.
D. shut the chlorine supply off at the tank and then evacuate the lines
before turning of the water. Correct Answers B. shut the water supply
off before closing down the chlorine cylinder.
Which type of meter requires an upstream strainer when installed on a
large industrial service?
A. venturi meter
B. proportional meter
C. current meter
D. compound meter Correct Answers A. venturi meter
pressure below atmospheric pressure are most commonly known as.
A. gauge
B. negative
AND CORRECT ANSWERS | GRADED A+ | VERIFIED
ANSWERS | BRAND NEW VERSION!
In a traffic control work
A. may not be used for any work activity.
B. is used by pedestrians to pass through the work area.
C. provides maneuvering space for traffic.
D. provides an area to stage needed materials. Correct Answers C.
provides maneuvering space for traffic.
A pump making 32 strokes per minute discharges 600 gpm (2,270 Lpm).
if the speed is increased to 35 strokes per minute, what will the
discharge be in gpm (Lpm)
A. 550.63 gpm (2077.42 Lpm)
B. 656.25 gpm (2482.81 Lpm)
C. 1,119.86 gpm (4240.17Lpm)
D. 1,899.92 gpm (7063.74 Lpm) Correct Answers B. 656.25 gpm
(2482.81 Lpm)
Warmer water temps tend to
A. inhibit formation of disinfection by- products.
B. reduce chemical dosages.
C. decrease tubercle growth rate
D. increase biological growth rate. Correct Answers D. increase
biological growth rate.
,There is a chlorine leak downstream from the cylinder. following proper
safety procedures, which of the following should the operator do next.
A. check the amount of chlorine remaining in the cylinder.
B. close the cylinder valve securely.
C. chloramine formation
D. turn off the chlorinator water supply. Correct Answers B. close the
cylinder valve securely.
Adding free chlorine to water until its highest chlorine demand is
satisfied is known as?
A. free chlorine
B. chlorine residual
C. chloramine formation
D. break point chlorination Correct Answers D. break point chlorination
The practical maximum height to set a pump above water level is.
A. 15-25 ft (4.5-7.6 m)
B. 40 ft (12 m)
C. 75 ft (23 m)
D. 2-6 ft (0.6-1.8 m) Correct Answers A. 15-25 ft (4.5-7.6 m)
What mineral (other than iron) usually occurs in low concentrations in
natural water and causes problems on bathroom fixtures or fabrics.
, A. magnesium
B. manganese
C. aluminum
D. compound meter Correct Answers A. magnesium
When taking a gas chlorinator out of service, an operator should.
A. start at the chlorine contact point and shut off all valves working
backwards to the tank.
B. shut the water supply off before closing down the chlorine cylinder.
C. disconnect the electricity first, but no other special order is required.
D. shut the chlorine supply off at the tank and then evacuate the lines
before turning of the water. Correct Answers B. shut the water supply
off before closing down the chlorine cylinder.
Which type of meter requires an upstream strainer when installed on a
large industrial service?
A. venturi meter
B. proportional meter
C. current meter
D. compound meter Correct Answers A. venturi meter
pressure below atmospheric pressure are most commonly known as.
A. gauge
B. negative
