Natural and Fan Assisted Draft Appliance 5,6.7

Natural and Fan Assisted Draft Appliance 5,6.7

12th Grade

48 Qs

quiz-placeholder

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Natural and Fan Assisted Draft Appliance 5,6.7

Natural and Fan Assisted Draft Appliance 5,6.7

Assessment

Quiz

Education

12th Grade

Practice Problem

Hard

Created by

Andgel Thomas

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48 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main purpose of a combustion air blower?

To cool the combustion chamber

To remove exhaust gases

To move air through the burners and heat exchanger during heating

To ignite the burners

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factor is essential when selecting a fan unit for mid-efficient appliances?

The heat exchanger's material

The fan's durability under high temperatures and cycling

The color of the appliance

The fuel type

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does an induced draft fan specifically help overcome in an appliance?

Atmospheric pressure

Heat transfer limitations

Resistance to airflow in the heat exchanger

Temperature fluctuation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Static pressure in a fan system is most comparable to:

Airflow speed

Sound frequency

Inflation of a balloon

Temperature difference

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which appliance type does NOT require a fan to assist in combustion?

Induced draft appliance

Natural draft appliance

Forced draft appliance

Balanced draft appliance

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In fan-assisted systems, what typically happens if the air supply size is reduced?

Increased combustion efficiency

Reduced static pressure

Overheating of the appliance

Poor venting performance

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Annual Fuel Utilization Efficiency (AFUE) describes:

Only the combustion efficiency of an appliance

The seasonal efficiency, including heat losses

The temperature of exhaust gases

The fuel type used in an appliance

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