Paper 2 (Week 3 b Quiz)

Question 1

What is vitiation?

Answer 1

1

Question 2

Describe how a pre-aerated burner works.

Answer 2

2

Question 3

Which is the hottest part on a blow torch?

Answer 3

3

Question 4

What is the cause of flame chilling?

Answer 4

4

Question 5

Describe flame impingement

Answer 5

5

Question 6

What is the purge volume of a metric U6?

Answer 6

6

Question 7

What is complete combustion?

Answer 7

7

Question 8

What are the signs of incomplete combustion?

Answer 8

8

Question 9

How many units of oxygen are needed to burn one unit of gas?

Answer 9

9

Question 10

What is the percentage of nitrogen and O2 in air?

Answer 10

10

Question 11

What is the flame temperature of natural gas?

Answer 11

11

Question 12

What is the flame speed of natural gas?

Answer 12

12

Question 13

What are the effects of a burner and flame from over gassing?

Answer 13

13

Question 14

What is the purge volume of an E6?

Answer 14

14

Question 15

What is stoichiometric combustion?

Answer 15

15

Question 16

What are the three CO alarm distances?

Answer 16

16

Question 17

If the pressure is 19mb at the ECV, what is the possible pressure at the meter outlet at full flow rate of 6m3/hr?

Answer 17

17

Question 18

What are the criteria for allowed pressure drop on a system?

Answer 18

18

Question 19

How much is added for fittings on an IV calculation?

Answer 19

19

Question 20

What is the pressure drop allowance on an E6 with 35mm pipework?

Answer 20

20