Test 1

1.The power supply to a residential gas furnace is:

• A) 120/1/60
• B) 120/2/60
• C) 240/1/60
• D) 240/2/60

2. As gauge number of a conductor increases, its current carrying capacity:

• A) increases
• B) decreases
• C) remains the same
• D) varies directly

3. As more circuits are added to a panel, the total current drawn from the panel:

• A) increases
• B) decreases
• C) remains the same
• D) varies directly

4. A hard, sharp pilot flame indicates:

• A) the orifice is too small
• there is a lack of air
• there is excessive draft at the pilot location
• D) high gas pressure

5. Direct current travels:

• A) only from the load directly to the source
• in one direction only
• C) only from the source directly to the load
• D) across the load only

6. A receptacle-mounted ground fault interrupter protects against:

• A) appliance overload
• B) dead shorts
• short circuits
• current flow to ground

7. On an electrical schematic, the system is shown with the:

• A) disconnect closed with all devices as though the heating is on

• disconnect closed with all devices as though there is a call for heating but the heating has not yet come on

• disconnect open with all devices as though there is a call for heating

• disconnect open with all devices as though there is no call for heating

30. What are the main components of a gas-fired refrigerator?

• generator, evaporator, radiator, absorber
• B) generator, evaporator, capacitor, absorber
• C) generator, evaporator, compressor, absorber
• D) generator, evaporator, absorber, condenser

31. Is it permissible to use the propane side of a refrigerator in a recreation vehicle while the vehicle is in motion?

• A) no
• no, unless the vehicle is only being moved to a more level location
• C) yes
• yes, if the vehicle is being moved 1 mile or less

32. How can the location of a leak in a heat exchanger be determined?

• A) by using a flue gas analyzer and visual examination
• by using a carbon monoxide detector and visual examination
• by using a smoke generator and visual examination
• all of the available choices