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HVAC Knowledge Test

Authored by Cherisa Ali

Specialty

12th Grade

Used 2+ times

HVAC Knowledge Test
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15 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What should always be used when working with high-voltage HVAC equipment?

Insulated gloves

Cotton work gloves

Bare hands for better control

Regular leather gloves

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which gas, commonly associated with HVAC leaks, is dangerous due to its odorless and colorless nature?

Nitrogen

Carbon monoxide

Oxygen

Helium

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What should an HVAC technician do before starting maintenance on an electrical system?

Keep the power on to test components

Shut off power at the breaker and lock/tag it out

Wear a face mask for dust protection

Ground themselves using metal surfaces

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Why must refrigerants be handled carefully?

They are highly flammable in all cases

They can cause burns and environmental damage

They are harmless to humans but damage equipment

They produce excess heat during storage

5.

MULTIPLE CHOICE QUESTION

5 mins • 2 pts

What PPE is most essential when working with refrigerants?

Sunglasses and a dust mask

Rubber boots and an apron

Safety goggles and gloves

Hard hat and earplugs

6.

MULTIPLE CHOICE QUESTION

5 mins • 2 pts

What is the main function of a compressor in an HVAC system?

Absorbs moisture from the air

Pumps refrigerant and pressurizes it

Filters air for dust and debris

Reduces humidity in ductwork

7.

MULTIPLE CHOICE QUESTION

5 mins • 2 pts

The "evaporator coil" is responsible for:

Condensing refrigerant vapor

Removing heat from indoor air

Compressing refrigerant gas

Filtering air for contaminants

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