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Domestic Gas

Authored by Martin Biron

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Professional Development

Used 36+ times

Domestic Gas
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35 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

What is the Specific Gravity of Natural Gas

0.60

1.0

1.5

2

2.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

What is the Gas Air Ratio for Natural Gas

38.5

9.8:1

21

30.9:1

3.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

What is CH4 ?

Butane

Propane

Ethane

Methane

4.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

What colour is a Post-aerated flame?

Blue

Orange

Yellow

Purple

5.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

What does 'Pre' mean?

Pre-demand

After

Before

Often

6.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

Definition of Open Flue

Air is taken for combustion from outside air and products of combustion is placed into an adjoining room

Air is taken from within the room and placed back into the same room

Air is taken from the room and PoC is placed via a purpose provided flue to the outside air

Air is taken from the room and scrubbed clean before being expelled to outside air

7.

MULTIPLE CHOICE QUESTION

30 sec β€’ 1 pt

What is the function of a DDD?

Prevent downdraught from extinguishing the flame

Prevent downdraught from extinguishing the flame and prevent up-pull of the gas

Prevent downdraught from extinguishing the flame and help dilute the PoC

Prevent downdraught from extinguishing the flame and ventilate the main gas burner

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