Unregistered

Hi I have been given test questions for my 6129 level 2 plumbing and there are some
questions I am not 100% sure on would anyone happen to know the correct answer to
these as I can not find them in the materials I have will be getting a 6129 book soon
and help be much appreciated thANKS...............................
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(Q.11) Which one of the following methods of jointing copper tube should not be used
for underground service pipe connections?

(a) Type A non-manipulative compression fitting

(b) Type B manipulative compression fitting

(c) Integral solder ring capillary fitting

(d) Endfeed solder capillary fitting
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(Q.12) When the cylinder cold feed and cold distributing pipe are connected to the
same cold water storage cistern the:

(a) two pipes must be connected on opposite sides of the cistern

(b) two pipes must be connected at the same height from the cistern base

(c) Cylinder cold feed pipemust be lower than the distribution pipe

(d) Cold distribution pipe must be lower than the cylinder cold feed pipe.
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(Q.13) Which one of the following pipes should be connected to a cold water storage
cistern by means of a filterd connection?

(a) vent pipe

(b) Distribution pipe

(c) Cold feed pipe

(d) Overflow/Warning pipe
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(Q.14) Which one of the following must not be used for making connections between
systems pipework and cold water storage cisterns?

(a) plastic jointing washers

(b) Lead free solderfittings

(c) Oil based jointing compounds

(d) Non-manipulative compression fittings
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(Q.18) Major refurbishment is being carried out on a large occupied dwelling. Which
one of the following should be advised before the cold water supply to the
dwelling is taken out of service?

(a) The customer only

(b) The foreman bricklayer

(c) The foreman carpenter

(d) The customer & other trades
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(Q.19) Which one of the following must be carried out prior to commencing work on
moving an instantaneous electric water heater, from over a sink to a new position?

(a) Turn of the electrical supply at the water heater, tape over the switch and
carry on with the work.

(b) Isolate the heater from the electrical supply at the consumer unit, by removing
and retaining the fuse, and check for safe isolation.

(c) Check that the electrical supply to the new heater position is of the correct
rating.

(d) Ask the customer to turn off the electrical supply and isolate the heater.
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(Q.20) The cold water supply pipe at the supply stop valvemust be cut or
disconnected and blanked off

(a) to prevent dirt entering the service pipe when a system is being flushed out

(b) to prevent disinfectant entering the mains through the service pipe during
disinfection

(c) when a system is being permanently decommissioned

(d) when a soundness test is being carried out on a system
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(Q.21) When a cold water system is temporarily decommissioned to permit maintenance
work, it is advisable to place a warning notice saying `do not turn on` when

(a) a WC float valve, controlled by a service valve is being maintained

(b) the cold water supply is turned off at the main stop valve to permit the
installation of a WC

(C) a cold water storage cistern float valve is being maintained by isolating
the service valve

(d) a cold distributing pipe from a storage cistern controlled by an inlet service
valve is being replaced.
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(Q.23) Information regarding the maintenance requirements for a shower mixer can be
found in

(a) the manufacturer`s instructions

(b) the systems installation plan

(c) current water regulations

(d) British standard 6700
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(Q.26) Ceramic discs would be required to carry out maintenance on a

(a) spherical service valve

(b) portsmouth type float valve

(c) quarter turn pillar tap

(d) screwdown bib tap
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(Q.27) In which one of the following cold water components is it possible to replace the
valve seating?

(a) spherical service valve

(b) portsmouth type float valve

(c) quater turn sink pillar tap

(d) float valve to bs 1212
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(Q.29) The performance specification for a water softener can be found in the

(a) current water Regulations

(b)manufacturer`s technical information

(c) job specification for the installation

(d) system layout plans
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(Q.38) A supply pipe is leaking where it enters a house in a tiled shower room. The
pipe is copper, the leak is just above floor level and the pipe in the area of the
leak is green. The most likely cause of the problem would be that the pipe

(a) is from a faulty batch

(b) has been ruptured

(c) had been corroded by cleaning materials

(d) has been corroded by air in the water
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(Q.39) When a screwdown pillar tap on a sink drainer is opened, there is a high pitched
vibration or whistling noise. The probable cause is that

(a) the water pressure is set to high

(b) the packing gland is loose

(c) the tap is not set into the sink top correctly

(d) a washer is split or loose
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(Q.41) Water regulations do not permit the fixing of rigid screw-in type silencer
tubes to float valves, because such devices

(a) could become blocked and prevent the cisternfrom filling

(b) can corrode and fall into the cistern causing contamination

(c) could cause backflow of water and subsequent contamination of the water supply

(d) Can cause air to be injected into the cistern contents which will cause airlocks
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(Q.42) The amout of noise being caused by a float valve in a storage cistern can be
reduced by

(a) changingthe valve seating for a smaller diameter valve seating

(b) fitting a larger float

(c) fitting a longer lever arm

(d) clearing any grit or debris that has accumulated in the valve orifice
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(Q.44) When renewing a cold feed and expansion cistern to an Indirect Domestic Hot Water System,
the isolating valve to the cistern must be closed, and the

(a) fuse for the hot water heating appliance from the consumer unit removed

(b) main cold water supply stop valve closed and labled `do not open`

(c) domestic hot water storage cylinder drained

(d) main cold feed cistern and pipework drained
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(Q.45) before removing a section of copper pipework for maintenance purposes, all necessary
controls must be closed, appropriatesections of pipework must be drained and

(a) temporary earth continuity bonding must be applied

(b) the supply preassure to the all hot and cold pipes checked

(c) checks made that the householder has sufficent water for use during the repair

(d) the water undertaker must be notified by phone before removing the pipe