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WorksheetsACS CCN1 Quiz 1
Total questions: 11
Worksheet time: 6mins
What is the maximum installation volume (IV) that can be worked on as per IGEM/UP/1B?
0.025m3
0.035m3
0.02m3
0.2m3
What is the maximum operating pressure (MOP) at the outlet of the emergency control valves (ECV) as per IGEM/UP/1B?
75mb
1bar
2bar
3bar
What is the maximum nominal bore for copper pipework as per IGEM/UP/1B?
22mm
28mm
35mm
45mm
What is the IV & PV of the installation specified below?
G4 meter (0.008)
22mm copper pipe (0.00032)
There is 6m of 22mm copper pipe
0.002 & 0.003
0.008 & 0.0012
0.009 & 0.0013
0.010 & 0.015
When conducting a let-by test the water within the U gauge raises by more than 0.25mb, what procedure would you follow?
The test would be stopped and ESP called to repair
Move straight onto the tightness test suspected let-by would have no detrimental affect on the test.
Connect temporary bonding across the meter than disconnect the ECV and spray LDF into the barrel to prove let-by before contacting ESP.
Disconnect the ECV and spray LDF into the barrel to prove you have let-by.
What is the maximum pressure drop allowed for an existing system with appliances fitted, a G4 meter and 35mm pipework, appliance connected and no smell of gas reported?
4mb
0mb
8mb
2.5mb
The normal working pressure of a low pressure installation is?
19mb
20mb ± 1mb
21mb ± 2mb
23mb
A new appliance which has not been fully commissioned must?
Be treated as “Immediately Dangerous”
Be treated as "At Risk”
Not be left connected to the gas supply and be labelled as “Uncommissioned Applaince”
Be treated as “Immediately At Risk”
A push fit type of fitting found on gas installation?
Is acceptable if the material of the fitting is made of metal
Is acceptable if the material of the fitting is made of plastic
Is not acceptable and would be classified as ID and RIDDOR reportable
Is not acceptable and would be classified as AR and RIDDOR reportable
What is the let-by test pressure on both low and medium pressure installations?
12mb
20mb
20-21mb
7-10mb
An MIV is found to be letting by on a medium pressure installation. What action do you need to take?
This is acceptable if within limits
Connect temporary bonding across the meter than disconnect the ECV and spray LDF into the barrel to prove let-by before contacting ESP
Contact MAM
Contact ESP
