Plumbers NZ is New Zealand's largest online plumbing, gas and drainage resource. Plumbing exam help, plumbing news, directory and free quotes.

« Question 5 | Question 7 »
Pages: [1]   Go Down

Author Topic: Question 6  (Read 1359 times)

0 Members and 1 Guest are viewing this topic.

Offline LisaS

  • Full Member
  • ***
  • Posts: 124
  • Karma: +0/-0
Question 6
« on: February 11, 2009, 09:35:51 AM »
QUESTION 6
(a) State the function of each of the following systems fitted to a package burner:
 1 Gas control system
 2 Air control system
 3 Ignition control system
 4 Flame control system
(4 marks)

(b)  State the THREE steps in the operating sequence of a two-stage automatic safety shut off valve
fitted to an industrial furnace.
 1
 2
 3
 (3 marks)

(c) Some appliances contain an overheat switch and a thermostat.  Explain their relationship.
(1 mark)
Total 8 marks

Linkback: https://www.plumbers.nz/gas-exam-2006/20/question-6/148/
Share Post | Report to moderator   Logged
Pages: [1]   Go Up
« Question 5 | Question 7 »

* Share Topic

Share via digg Share via facebook Share via linkedin Share via twitter

Similar Topics

  Subject / Started by Replies / Views Last post
xx
Question 15

Started by LisaS

0 Replies
2030 Views 		Last post February 11, 2009, 08:59:20 AM
by LisaS
xx
Question 14

Started by LisaS

0 Replies
1679 Views 		Last post February 11, 2009, 08:59:42 AM
by LisaS
xx
Question 13

Started by LisaS

0 Replies
1723 Views 		Last post February 11, 2009, 09:00:14 AM
by LisaS
xx
Question 12

Started by LisaS

0 Replies
1806 Views 		Last post February 11, 2009, 09:01:09 AM
by LisaS
 
Share this topic...
In a forum
(BBCode)
In a site/blog
(HTML)