Licensing

Question 1

Name FOUR licensing categories for which workers must be supervised and have their work
verified by a certifying gasfitter

Answer 1

• Trainees/limited certificate holder.
• Person with exemption under supervision.
• Provisional licence holder.
• Tradesman.
• Journeyman.

Question 2

Give a situation that would make working in a confined space particular hazardous work

Answer 2

• Worker required to breathe air or gas that has been compressed or under pressure.
• Where the confined space is a tunnel or drive underground.
• If explosives are being used or stored.

Question 3

Give FOUR items, in addition to standard personal protection equipment, that should be supplied to the person monitoring people working within a confined space

Answer 3

• Two-way radio.
• Tripod and harness.
• Length of rope.
• Phone for contacting emergency services.
• Gas monitoring equipment.
• Timer.
• Record of entry and exit.

Question 4

Describe what is meant by the term nominated person in relation to supervision of gasfitting work.

Answer 4

A suitably qualified person who performs the physical supervision on behalf of the certifier

Question 5

State the minimum length of time that a trainee gasfitter must work under direct supervision of his or her supervisor

Answer 5

12 months

Question 6

State the minimum length of time that a gasfitter working with an exemption under supervision must work under the direct supervision of his or her supervisor.

Answer 6

24 months

Question 7

Name TWO licensing categories, other than trainees and exemption holders, for which
workers must be supervised and have their work verified by a certifying gasfitter.

Answer 7

• Tradesman

* Journeyman

Question 8

List FIVE types of construction work that are defined as particular hazardous work.

Answer 8

Notifable work

Question 9

Give THREE characteristics of a work site that determine that the site will be considered to
be a confined space.

Answer 9

• Has limited entries and exits.
• Contains a material, such as sawdust or grain
• Not intended for human occupation but is large enough for a worker to enter and perform
assigned work

Question 10

Give FOUR examples of occurrences that would be classed as notifiable incidents.

Answer 10

• Electric shock.
• Gas or steam escaping
• The collapse of a structure.
• A substance escaping.

Question 11

Give TWO actions that must be taken immediately after a notifiable incident has occurred.

Answer 11

• Preserve the site.
• Notify WorkSafe.
• Keep records.

Question 12

Give TWO other occurrences that are classed as notifiable events

Answer 12

• Notifiable illness or injury.

* Death.

Question 13

Give TWO examples, other than fire wraps, of passive fire protection.

Answer 13

• Fire collars.
• Fire walls.
• Fire doors.

Question 14

Describe what intumescent material does, and how it slows the spread of fire

Answer 14

• Expands when exposed to heat and crushes plastic pipes keeping penetrations of fire separations well sealed.

Question 15

NZS 5255 states that when a safety verification of an existing gas installation is being performed to NZS 5255, the inspection must be supplemented by appropriate tests. List TWO of these tests.

Answer 15

• Room carbon monoxide testing.
• Pressure and soundness testing.
• Flue spillage testing.
• Combustion testing.

Question 16

State the full name of a CoV

Answer 16

Certificate of Verification.

Question 17

List TWO evaluation methods that may be used to provide evidence of compliance when a safety verification of an existing installation is being undertaken.

Answer 17

• Documentation.
• Interview.
• Visual inspection.
• Testing.
• Questionnaire.