ACS CCN1 Practice Questions - ACS CCN1 Core Domestic Natural Gas Safety Assessment Exam - ACS CCN1 Practice Questions - ACS CCN1 Core Domestic Natural Gas Safety Assessment Exam

Question 1

Which set of regulations places the primary legal duty on gas operatives to ensure domestic gas appliances and installations are safe?

The Gas Act 1986 The Gas Safety (Installation and Use) Regulations 1998 (GSIUR) The Pressure Systems Safety Regulations 2000 The Construction (Design and Management) Regulations 2015

Correct Answer:

The Gas Safety (Installation and Use) Regulations 1998 (GSIUR)

Question 2

Under GSIUR 1998, a person carrying out gas work for hire or reward in domestic premises must be registered with which body?

CORGI The Gas Safe Register OFGEM The Health and Safety Executive

Correct Answer:

The Gas Safe Register

Question 3

What is the approximate gross calorific value (CV) of UK natural gas used when calculating heat input?

19.4 MJ/m3 29.3 MJ/m3 38.76 MJ/m3 93.0 MJ/m3

Correct Answer:

38.76 MJ/m3

Question 4

When gas rating a domestic appliance on a metric (m3) meter, what does the timed test dial reading allow you to calculate?

The standing pressure only The gas rate in m3/h, from which heat input in kW can be derived The flue draught The CO/CO2 ratio

Correct Answer:

The gas rate in m3/h, from which heat input in kW can be derived

Question 5

What is the standard nominal operating (working) pressure for natural gas at the outlet of a domestic meter?

7 mbar 21 mbar 37 mbar 50 mbar

Correct Answer:

21 mbar

Question 1

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About this Exam

Prepare with the ACS CCN1 Practice Questions - ACS CCN1 Core Domestic Natural Gas Safety Assessment Exam practice quiz. This question bank includes 100 questions covering appliance, domestic, pressure, installation, and pipework. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ACS CCN1 Practice Questions - ACS CCN1 Core Domestic Natural Gas Safety Assessment Exam

This practice set contains 100 questions from the matching question bank and focuses on appliance, domestic, pressure, installation, and pipework. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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ACS CCN1 Practice Questions - ACS CCN1 Core Domestic Natural Gas Safety Assessment Exam

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