Paper 1 (Week 2 Quiz)

Question 1

What is the flame speed of methane (natural gas)?

Answer 1

1

Question 2

What is an ASD/VSD?

Answer 2

2

Question 3

What depth should a pipe be buried under a garden?

Answer 3

3

Question 4

What is chemical equation for complete combustion?

Answer 4

4

Question 5

List three reasons for a tightness test.

Answer 5

5

Question 6

What are the flammability limits?

Answer 6

6

Question 7

What is perceptible movement in a water gauge?

Answer 7

7

Question 8

On a multi-occupancy dwelling the service pipe runs on the outside wall. What is this called?

Answer 8

8

Question 9

What are the distances when notching joists?

Answer 9

9

Question 10

What is the distance from a gas pipe to a consumer unit?

Answer 10

1

Question 11

Give the volume of gas at full rate though a GM meter.

Answer 11

2

Question 12

When is permissible pressure loss allowed?

Answer 12

3

Question 13

What is the ignition temperature of natural gas?

Answer 13

4

Question 14

What pipes should be used in a protected shaft?

Answer 14

5

Question 15

List three reasons for let-by.

Answer 15

6

Question 16

What does working pressure test?

Answer 16

7

Question 17

What does standing pressure test?

Answer 17

8

Question 18

List three signs of incomplete combustion.

Answer 18

9

Question 19

What is incomplete combustion?

Answer 19

10

Question 20

What is the permissible pressure drop where no meter is fitted?
for - 28mm pipe?
for - 28mm pipe?

Answer 20

1

Question 21

How is pipe protected when buried underground?

Answer 21

2

Question 22

Should a tightness test be performed before or after protection is applied?

Answer 22

3