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15 Cards in this Set
- Front
- Back
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What is the maximum installation volume (IV) that can be worked on as per IGE/UP/1b 2nd Ed? i 0.025m3 ii 0.035m3 iii 0.02m3 iv 0.02m3 |
A. 0.035m3 |
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What is the installation volume of an e6 gas meter? i 0.008m3 ii 0.025m3 iii 0.0036 m 3 iv 0.0024m3 |
A. 0.0024m3 (G4/U6 meter is 0.008) |
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When calculating the volume of pipework what allowance is made for fittings? i 0.5m3 for each elbow/ tee ii 10% iii 50% iv 0.1 m3 for each elbow/ tee |
A. 10% |
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What is the IV of the installation specified below? g4 meter 6 meters x 22mm copper pipe i 0.002 112m3 ii 0.008 352m3 iii 0.009 92m3 iv 0.010 112m3 |
A. (IVmeter + IVpipe+ IVfittings [10%]) 0.010 112m3 |
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What is the IV of the installation specified below? U16 meter 15 metres x 32mm steel pipe i 0.0261m3 ii 0.04150m3 iii 0.04315m3 iv 0.04815m3 |
A. (IVmeter + IVpipe+ IVfittings [10%]) =0.04315m3 |
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When conducting a let by test and the water within the gauge rises by more than 0.25mbar what procedure should you follow i The test would be stopped and the gas supplier would be called to repair. ii Move straight onto tightness test as suspected let by would have no detrimental effect on the test iii Connect a temporary bonding across the meter then disconnect the ecv and spray LDF into the barrel to prove you have let by iv Disconnect the ECV and spray LDF into the barrel to prove you have let by. |
A. Connect a temporary bonding across the meter then disconnect the ecv and spray LDF into the barrel to prove you have let by |
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After completing a successful pressure tightness test, there is still a possibility that the regulator may have locked up, what must now be done to ensure that the installation is tight? i Re-test the installation at 15mb ii This will not happen if the correct test pressure used iii Carry out an air test on the whole installation iv LDF ECV/AECV outlet and regulator connections |
A. LDF ECV/AECV outlet and regulator connections |
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What type of gas meter requires extra care when performing a test for tightness? i Quantum gas meter ii Coin operated gas meter iii Medium pressure gas meter iv Ultrasonic meter |
A. Quantum gas meter |
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What is maximum pressure drop allowed for an existing system with a g4 metre and 35mm Pipework, there is no smell of gas and meter installation pipework is tight? i 4mbar ii 0mbar iii 8 mbar iv 2.5mbar |
What is the purge volume of the installation specified below?IVp is 0.00588m3Gas meter is U1628 mm pipework |
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If you were called to a gas leak and it was tight but there was still a smell of gas when ECV was turned off, what procedure would you follow? i Advise the responsible person the test has passed and then relight appliances ii Call CORGI to notify that the system was tight but there is still a smell of gas iii If smell can not be eliminated call Emergency service provider iv Ventilate premises when smell clears installation may now be used |
A. If smell can not be eliminated call Emergency service provider |
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What would be the tightness test pressure and tightness test duration when conducting a tightness test of an installation where the pressure in the service is in the medium pressure range and no MIV fitted? i 19mbar and 2 mins ii 10mbar and 2 mins iii 0 mbar and 1 minute iv 20mbar and 1 minute |
A. 19mbar and 2 mins |
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What is the purge volume of the installation specified below? |
(IVm +IVp+IVf x 1.5) |
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What is the purge volume of the installation specified below? |
(IVm +IVp+IVf x 1.5) |
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What purging procedure must be employed when the installation contains a U16 meter? i Purge through an unprotected burner without lighting the gas ii Purge through an unprotected burner and continually attempt to light the gas iii Either of the above methods at the engineer's decision iv Purge through a loosened fitting without igniting the gas |
A. Purge through an unprotected burner and continually attempt to light the gas |
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What is the maximum volume in relation to purging in accordance with IGE/UP/1B2nd ed? i Maximum PV of 0.02m3 ii Maximum IV of 0.0035m3 iii at the engineer's discretion iv No limit |
A. Maximum IV of 0.0035m3 |
