12832662
Descripción
Test por james crowley, actualizado hace más de 1 año
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Creado por james crowley
hace más de 6 años
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Pregunta 1
Pregunta
When installing a new indirect cold water system, which of the following should
happen, according to the Water Regulations?
Respuesta
-
a. One tap, normally the kitchen sink, should be drawn directly from the supply pipe
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b. One tap, normally the kitchen sink, should have a dedicated distribution pipe from the storage cistern
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c. Mixer taps will require double check valves
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d. Mixer taps should never be installed due to the pressure differences
Pregunta 2
Pregunta
According to BS6700 and the Water Regulations, a drain off valve should be
installed:
Respuesta
-
a. At every draw off point
-
b. At every high point in the system
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c. At every low point in the system
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d. Above the cold water storage cistern.
Pregunta 3
Pregunta
Pin holing in copper pipework is commonly caused by:
Respuesta
-
a. Hard water
-
b. Acidic water
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c. Alkaline water
-
d. Pure water.
Pregunta 4
Pregunta
While installing pipework in a property, you are called off site to another job. What
would be the correct course of action with any open-ended pipework?
Respuesta
-
a. Place a warning label on every open end
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b. Cap off with a push fit fitting
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c. Warn the customer not to interfere with any pipework
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d. Be as quick as you can to return.
Pregunta 5
Pregunta
One of the major problems when leaving a dead leg in a cold water pipe is:
Respuesta
-
a. Electrolytic corrosion
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b. Pitting of pipework
-
c. Reduction in water flow
-
d. Possible bacterial growth.
Pregunta 6
Pregunta
The use of WRAS approved fittings when installing cold water pipework is:
Respuesta
-
a. A legal requirement
-
b. To be corrosion resistant
-
c. To avoid contamination
-
d. All of the above.
Pregunta 7
Pregunta
On the completion of a new cold water installation, the system has been proven
sound. What would the next course of action be?
Respuesta
-
a. Visual inspection with the customer
-
b. Flush the pipework out then hand over to the customer
-
c. Prepare the benchmark certificate
-
d. Hand over to the customer.
Pregunta 8
Pregunta
What is the most cost effective way to repair a stop valve that has the head gear
jammed open?
Respuesta
-
a. Replace the head gear only
-
b. Replace the whole valve
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c. Leave in position, and install a new stop valve upstream
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d. Repack the glands around the spindle.
Pregunta 9
Pregunta
When decommissioning a system, the correct procedure is to:
Respuesta
-
a. Turn off the water quickly to save any wasted water
-
b. Drain the system down then inform the customer
-
c. Inform the customer first then drain the system
-
d. Use a pump to drain down quickly.
Pregunta 10
Respuesta
-
a. Fullway gate valve
-
b. Drain off valve
-
c. Stop valve
-
d. Spherical ball valve.
Pregunta 11
Pregunta
What type of valve is shown in this diagram?
Respuesta
-
a. Spherical ball valve
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b. Fullway gate valve
-
c. Stop valve
-
d. Drain off valve.
Pregunta 12
Pregunta
When installing a new water service pipe to a property, it should
normally be buried between what depths?
Respuesta
-
a. 135mm to 1,750mm
-
b. 350mm to 750mm
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c. 1,350mm to 1,750mm
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d. 750mm to 1,350mm.
Pregunta 13
Respuesta
-
a. Warning pipe
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b. Grommet for open vent
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c. Screened vent
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d. Inspection flap.
Pregunta 14
Pregunta
Which of the following materials is not allowed
to be installed on new cold water systems?
Respuesta
-
a. Copper
-
b. Stainless steel
-
c. MDPE
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d. Lead.
Pregunta 15
Pregunta
What type of valve is designed to shut off the supply of water in a cistern at a
predetermined level?
Respuesta
-
a. Stop valve
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b. Fullway gate valve
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c. Float operated valve
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d. Isolation valve.
Pregunta 16
Pregunta
The fluid category that offers a slight health risk to a customer is:
Respuesta
-
a. 1
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b. 2
-
c. 3
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d. 4.
Pregunta 17
Pregunta
The correct back flow protection device that would be installed prior to a shower
mixer valve would be:
Respuesta
-
a. Single check valve
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b. Double check valve
-
c. RPZ valve
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d. Type AG air gap.
Pregunta 18
Pregunta
To protect category 1 water from category 3 water, what would need to be installed,
according to the Water Regulations?
Respuesta
-
a. Single check valve
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b. Double check valve
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c. RPZ valve
-
d. Type AG air gap.
Pregunta 19
Respuesta
-
a. Pressure
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b. Category of water
-
c. Flow rate
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d. pH valve.
Pregunta 20
Pregunta
If a customer’s tap is dripping, what tool can be used to correct the situation?
Respuesta
-
a. Club hammer
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b. Stillsons
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c. Bradawl
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d. Re-seating tool.
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