Trainable Moments

MT Weatherization Training Center's "Trainable Moments" Webinar Quiz

To gain BPI credit for the webinar, completion of this quiz is required. If you would like for us to submit for credit for you, please remember to provide your BPI number! A 70% or higher is required to receive BPI credits.

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* 1. Address

First and Last Name *

Agency Name *

BPI Number (if applicable)

City/Town *

State/Province *

Email Address *

Phone Number

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* 2. What equipment do you need to measure flow rate with a fan flow hood? (you may choose more than one).

a. Manometer

b. Gas sniffer

c. Flow hood

d. Pitot tube

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* 3. What is the effect of excessive length in exhaust fan ducting?

a. Excessively dry air in the home

b. Low flow at the fan

c. Excessive ventilation throughout the house

d. Back-drafting of nearby combustion appliances

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* 4. What is the range of flows found in typical bathroom exhaust fans?

a. 10-25 CFM

b. 25-75 CFM

c. 75-500 CFM

d. 500-1500 CFM

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* 5. When using a fan-flow hood or box, how can you calculate flow if your manometer measures pressure only?

a. Divide pressure in pascals by duct diameter in inches

b. Use a second manometer to measure static

c. Refer to the chart on the hood

d. Refer to ASHRAE 62.2

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* 6. What is the function of a high-limit switch?

a. Turns the gas off if the furnace is over-fired

b. Turns the fan on and off based on set points

c. Prevents over-shooting of room temperature

d. None of the above.

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* 7. What is the likely effect of a plugged furnace filter?

a. Reduced airflow

b. Increased airflow

c. Yellow flames

d. None of the above

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* 8. What basic systems are present in every gas furnace? (you may choose more than one)

a. Fuel delivery

b. Back-up resistance heat

c. Pressure relief valves

d. Chimney

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* 9. What are the two common voltages found in most modern furnaces in North America?

a. 240V and 24V

b. 220V and 110V

c. 120V and 24V

d. 24V and 12V

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