chapter 33 fall 2025

chapter 33 fall 2025

University

37 Qs

quiz-placeholder

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chapter 33 fall 2025

chapter 33 fall 2025

Assessment

Quiz

Other

University

Practice Problem

Easy

Created by

Mike Lapray

Used 7+ times

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37 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step of operations in a gas furnace when heat is called for?

Gas burners release gas.
Fuel gas is consumed by the flames in the heat exchanger.
A solenoid valve opens to allow fuel gas to pass into a manifold.
An indoor blower circulates cool air across the outside of the heat exchanger.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a condensing furnace, circulating air passes over the ____ before passing over the primary heat exchanger.

burner
combustion blower
flue
secondary heat exchanger

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Unlike a noncondensing furnace, a condensing furnace can use ____ for its exhaust flue.

a chimney
galvanized steel
PVC or CPVC
stainless steel

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Noncondensing furnaces typically have an AFUE rating between ____.

10% and 25%
40% and 60%
80% and 90%
90% and 100%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes the function of a combustion blower?

It atomizes the fuel as it enters the combustion chamber.
It brings fresh air into the combustion chamber and expels combustion gases.
It compresses the fuel mixture as it enters the combustion chamber.
It reduces draft in the flue.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The two types of combustion blowers are ____ blowers.

primary and auxiliary
downdraft and updraft
forced-draft and induced-draft
pre-combustion and post-combustion

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a house is built to place the furnace in the basement and the ductwork running above the furnace, a(n) ____ furnace would most likely be installed.

upflow
downflow
horizontal
sideflow

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