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DKOSRG

DKOSRG

Assessment

Presentation

Construction

4th Grade

Practice Problem

Hard

Created by

Ice one

FREE Resource

12 Slides • 29 Questions

1

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2

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3

Multiple Choice

What are the reference documents mentioned in the image?

1

AS/NZS 5601 : 2013

2

NZ 5259 : 2004

3

Gas Measurement

4

General installations

4

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5

Multiple Choice

Could you spot the danger?

1

Yes

2

No

3

Maybe

4

Not sure

6

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7

Multiple Choice

What are the compliance requirements for installing consumer piping according to Section 5 of AS/NZS5601?

1

Pipe must be approved for gas

2

Separated from the electrical system

3

Protected from corrosion

4

In sound condition – NO grease, burrs etc.

8

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9

Multiple Choice

What must copper joints be made with?

1

Correct tools or premade fittings

2

Incorrect tools

3

Only solder

4

Any type of fittings

10

Open Ended

Name 3 prohibited joints.

11

Multiple Choice

Why are unions installed?

1

To allow for easy disconnection

2

To increase pressure

3

To reduce flow

4

To prevent leaks

12

Multiple Choice

Are you qualified to weld a HDPE gas main?

1

Yes

2

No

3

Depends on training

4

Not applicable

13

Multiple Choice

Can a flare fitting be used in a concealed cavity?

1

Yes

2

No

3

Only in certain conditions

4

Not applicable

14

Multiple Choice

Would a long pipe run of 100m have more or less resistance to flow than a short run of 10m?

1

More resistance

2

Less resistance

3

Equal resistance

4

Not enough information

15

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16

Open Ended

What are the potential issues with digital manometers as mentioned in the text?

17

Open Ended

What type of manometer is recommended for soundness testing?

18

Multiple Choice

What is the recommended pressure for pipework testing according to the Office of the Technical Regulator?

1

5kPa

2

7kPa

3

10kPa

4

2kPa

19

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20

Multiple Choice

What is the pressure reading in kPa?

1

2.7 kPa

2

27.05 kPa

3

0.27 kPa

4

0.027 kPa

21

Open Ended

How would you purge an average new installation?

22

Open Ended

Why is a written test procedure required for installations over 30L?

23

Open Ended

How often does a digital manometer need to be calibrated?

24

Open Ended

Can you test through the gas meter?

25

Open Ended

How would a 5°C temperature drop affect a pipework test?

26

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27

Multiple Choice

What were the contributing factors to the carbon monoxide poisoning incident in Victoria in May 2010?

1

Faulty space heater

2

Inadequate ventilation

3

Negative pressure

4

All of the above

28

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29

Multiple Choice

What should be tested in the worst-case scenario for flued appliances?

1

Operation with extract fans off

2

Operation with all windows open

3

Operation with all appliances on Low

4

Operation with extract fans running, all windows and doors closed, all appliances on High

30

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31

Open Ended

Why is LPG considered more dangerous than NG?

32

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33

Multiple Choice

What are the key responsibilities outlined in the Energy Safety guidelines?

1

Reporting an accident

2

Gas High Risk Database

3

Safety alerts

4

Audits of Gasfitters

34

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35

Multiple Choice

What are the potential issues associated with faulty appliances?

1

Delayed ignition

2

Air contamination

3

Carbon Monoxide

4

Electrical failure

36

Open Ended

List three prohibited joints in gas piping.

37

Multiple Choice

What is the purpose of unions in piping?

1

To allow easy disconnection

2

To increase pressure

3

To reduce flow

4

To connect different pipe sizes

38

Multiple Choice

What should have been completed before welding HDPE gas mains?

1

General training

2

Product specific training

3

Safety training

4

Installation training

39

Multiple Choice

What type of fitting must not be used in a concealed cavity?

1

Flare fitting

2

Compression fitting

3

Screw fitting

4

Welded fitting

40

Multiple Choice

What would be the effect of a 100m pipe run on resistance to flow?

1

Less resistance to flow

2

No effect on resistance

3

More resistance to flow

4

Equal resistance to flow

41

Multiple Choice

What would a 5°C temperature drop cause during the test?

1

Increase in pressure

2

No effect on pressure

3

Drop in pressure

4

Increase in temperature

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