Part 6

Question 1

151. A broken or dotted line on a manufacturer’s wiring diagram normally indicates:

Answer 1

a. Factory installed wiring
b. Field installed wiring (B)
c. Black wiring
d. White wiring

Question 2

152. What type of air surrounds the flame for combustion?

Answer 2

a. Venting Air
b. Post-Secondary Air
c. Secondary Air (C)
d. Outside Air

Question 3

153. The heat content of 1 cubic foot propane is approximately:

Answer 3

a. 25,000 Btu
b. 10,000 Btu
c. 2,500 Btu (C)
d. 1,000 Btu

Question 4

154. What is the approximate make up of air?

Answer 4

a. 80% N2 to 20% 02 (a)
b. 85% N2 to 20% 02
c. 80% O2 to 20% N2
d. 60% N2 to 40% 02

Question 5

at 100% volts, what would be the amperage in a parallel circuit with a 10-ohm and 12-ohm resistance?

Answer 5

a. 18.33 (a)
b. 20.50
c. 16.6
d. 22.30

Question 6

156. Size the piping system shown in figure below. In the low pressure section, what pipe sizing table should be used?

Answer 6

a. B.6 (a)
b. B.7
c. B.8
d. B.9

Question 7

157. Are the provisions outlined in a B149 Annex mandatory?

Answer 7

a. Annexes are always mandatory
b. Annexes are never mandatory
c. Sometimes – annexes are non-mandatory unless adopted into law through regulation
d. Annexes may be mandatory or non-mandatory depending on the reference made to them in the base code. (d)

Question 8

158. What are the most common fire extinguishers used in the workplace?

Answer 8

a. ABD
b. BCD
c. ABC (c)
d. CBA

Question 9

159. What is the best alternative communication when a customer’s English is heavy accented?

Answer 9

a. Ask the customer to write their request (a)
b. Hire an interpreter
c. Recommend the customer take additional language training
d. Ask the customer to find someone who speaks better English

Question 10

160. What legal documents is the least specific but contains the most powerful set of rules?

Answer 10

a. An act (a)
b. A Regulation
c. A Standard
d. A Code