Self-Test A-1.2: Types of Gas Fired Appliances

Complete Self-Test A-1.2 and check your answers.

1. What section of the CSA B149.1 Code would you reference for general appliance installation requirements?
   1. 4
   2. 6
   3. 7
   4. 8

    

2. When a commercial cooking appliance is mounted on wheels, what other component is required?
   1. Side bollards
   2. GPS tracking
   3. Steering mechanism
   4. Restraining device

    

3. Gas-fired refrigerators operate differently than typical electric compression refrigeration units. What component does the gas-fired refrigerator not require?
   1. Compressor
   2. Condenser
   3. Evaporator
   4. Absorber

    

4. Gas clothes dryers require both a 110/120 VAC electrical outlet and a gas connection.
   1. True
   2. False

    

5. A recessed wall furnace uses what type of distinctive oval venting material?
   1. B
   2. C
   3. O
   4. BW

    

6. What makes a gas fired room heater different than most space heaters?
   1. Not self-contained
   2. No heat exchanger
   3. No venting
   4. No ducting

    

7. High-intensity infrared heaters have burners made of porous material that may reach surface temperatures up to:
   1. 980°C
   2. 800°C
   3. 650°C
   4. 440°C

    

8. Heating gas fireplaces, also known as vented-gas fireplace heaters, will have what minimum efficiency rating?
   1. 95%
   2. 83%
   3. 65%
   4. 50%

    

9. For gas fireplace applications that are not dependent on external electricity for their burner operation, what type of ignition system would be the best choice?
   1. Direct spark
   2. Hot surface
   3. Intermittent pilot
   4. DC electronic ignition

    

10. All newly installed 30- to 50-gallon residential gas water heaters with firing rates up to 75,000 BTUs/hr must be equipped with what additional feature?
    1. PRV
    2. FVIR
    3. Drain pan
    4. Restraining device

     

11. When a recirculation system is added to a tankless water heater, what other system component is usually required?
    1. Small buffer tank
    2. Pressure relief
    3. Heat exchanger
    4. Gas burner

     

12. What is the minimum efficiency required for all new gas furnaces installed in Canada?
    1. 65%
    2. 78%
    3. 90%
    4. 95%

     

Answer Key: Self-Test A-1.2 is on the next page.