Part 5

Question 1

141. Fires are divided into _____ main types, or classes, which dictate the type of extinguisher required to fight them.

Answer 1

a. Five (A)
b. Four
c. Nine
d. Six

Question 2

142. Mechanical drawings are used to:

Answer 2

a. Give the building address, show the equipment location, piping layout, duct sizing and duct layout (A)
b. Give the building address, locate the building on the site, location of adjacent structures, piping layout, and show equipment location
c. Give the building address, indicate the building size, show its elevations, list the mechanical equipment, and show its location, show all permits
d. Give the building address, show the owner’s name, installers name, permit numbers, the equipment list and the warranty

Question 3

143. Propane piping of 200ft. (61m) in length or less operating at a pressure over 2 psig (14 kPa) but not more than 33 psig (230 kPa) shall be tested at minimum of:

Answer 3

a. 5 psig (34 kPa) for 30 minutes
b. 15 psig (100 kPa) for 15 minutes
c. 15 psig (100 kPa) for 60 minutes
d. 50 psig (340 kPa) for 60 minutes (5)

Question 4

144. Propane piping of less than 200ft. (61m) in length or less operating at a pressure of 2 psig (14 kPa) shall be tested at minimum of:

Answer 4

a. 5 psig (34 kPa) for 30 minutes
b. 15 psig (100 kPa) for 15 minutes (B)
c. 15 psig (100 kPa) for 60 minutes
d. 50 psig (340 kPa) for 60 minutes

Question 5

145. Who publishes the B149 Code Handbook?

Answer 5

a. ASTM
b. ASME
c. CSA (C)
d. NFPA

Question 6

146. Which type of graph begins at a baseline, either horizontally or vertically, and shows the relationship between two or more related variables?

Answer 6

a. A triangle graph
b. A bar graph (A)
c. A X-Y graph
d. A 3D graph

Question 7

147. What must a Certificate Holder do when it appears that there has been a CO poisoning incident?

Answer 7

a. All of the above
b. Affix a notice containing the information required in clause to the appliance or work
c. Immediately shut off the supply of gas to the appliance or work; promptly give oral notice of the shutting off of the gas to the distributor; promptly give written notice to the user, (i) describing the condition that constitutes the immediate (C)
d. Within 14 days of finding the condition, give written notice of the condition to the distributor, including notice that the supply of gas has been shut off.

Question 8

148. Can a decorative appliance be installed in a bedroom?

Answer 8

a. Yes, Only if direct vented (A)
b. Yes, Only if power vented
c. No
d. Yes, Only if there is a window

Question 9

149. Which of the following best defines “Power”?

Answer 9

a. The ratio of applied energy (emf) to the resulting current in a circuit
b. The rate at which energy is supplied to a load (B)
c. Measure in volts, emperors, it is the total of supply voltage and reactive power
d. Measured in ohms, it is comprised of circuits resistance and react

Question 10

150. The flame temperature of natural gas is approximately:

Answer 10

a. 3500 C (6332 F)
b. 3600 F (1980 C) (C)
c. 2500 C (4532 F)
d. 2500 F (1371 C)