ACS CCN1 Quiz 1

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