Final I Got Wrong And Need To Review,Exam With
Correct Answers
1. The maximum vapour pressure supplied to a propane appliance is: 13 in w.c
(3.2kpa)
2. Which Code governs the assembly or construction of an appliance subject
to the authority having jurisdiction?: CSA B 149.3
3. What is the minimum diameter of test gauge that may be used in a pressure
test on gas piping?: 3 in
4. What is the maximum operating pressure for a "container supplied"
propane system: 250 psi
5. What piping materials may not be used to run gas above ground.: plastic
6. What type of joints are not permitted in steel piping?: brazed
7. what appliance does not require a dirt pocket ?: clothes washer
8. For identification of gas tubing in a residential application. The maximum
spacing of intervals along the entire length of the gas tube shall not exceed:: 6
feet
9. Where is / are the shut off valves located when a gas line is connected
between two buildings ?: At the point of exit of the first building and point of entry
of the second
10. What is acceptable termination to a gas line outlet not yet connected to an
appliance ?: cap, plug or plugged valve
, 11. What is the minimum distance from the surface of a wall that contains a
gas line before protection is not required ?: 1.75 in
12. What type of copper is approved for gas ?: type G, L or K
13. What type of copper pipe is approved for underground gas installation
?: Type K and externally coated L or G
14. A line pressure regulator requires a manual shut off valve. Where is it to
be installed: up stream the regulator
15. A propane line pressure regulator installed within a one or two family
dwelling or row housing shall not be installed more than:: 3 ft. (900 mm) from
the point where the propane supply enters the building
16. What is the minimum distance the discharge from relief devices shall
terminate from a mechanical intake ?: 10 feet (3 m)
17. A moisture exhaust duct cannot be connected to a: vent or chimney
18. A moisture exhaust duct cannot be connected with: sheet metal screws
19. State the minimum size of a discharge pipe from a temperature and pres-
sure relief device installed on a water heater:: At least equal to the nominal size
of the device outlet.
20. What type of draft control device is permitted on an incinerator?: A sin-
gle-acting draft regulator (barometric damper)