HVAC System Quiz

HVAC System Quiz

12th Grade

7 Qs

quiz-placeholder

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HVAC System Quiz

HVAC System Quiz

Assessment

Quiz

Professional Development

12th Grade

Practice Problem

Hard

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when the unit starts because of low engine block temperature?

The unit will not start.

The unit will start and operate in the defrost mode.

The unit will start and operate in the cooling mode.

The unit will start and operate in the heating mode.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature rise limit for the evaporator coil in defrost mode?

1°F (0.6°C)

2°F (1.1°C)

3°F (1.7°C)

4°F (2.2°C)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of the thermostat controlled all-season temperature control?

To control the engine speed.

To keep the batteries fully charged.

To maintain ambient conditions.

To control the temperature in low ambient conditions.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the variable glow plug preheat time?

To reduce engine wear.

To improve fuel efficiency.

To ensure proper engine start.

To reduce emissions.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens in High Speed Cool mode when the temperature is over 3.4°F (1.9°C) above set point?

The unit will shut down.

The unit will switch to Low Speed Cool.

The unit will continue to run in High Speed Cool.

The unit will switch to heating mode.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Low Speed Cool mode, what happens when the temperature is 1.7°F (0.9°C) below set point?

The unit will switch to High Speed Cool.

The unit will shut down.

The unit will continue to run in Low Speed Cool.

The unit will switch to heating mode.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature range for the thermostat lockout in High Speed Cool mode?

1.7°F (0.9°C) below to 3.4°F (1.9°C) above set point.

2°F (1.1°C) below to 4°F (2.2°C) above set point.

1°F (0.6°C) below to 2°F (1.1°C) above set point.

3°F (1.7°C) below to 5°F (2.8°C) above set point.

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