ICE HVACR Technician Certification Exam

ICE HVACR Technician Certification Exam (Entry-Level) Practice Test Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary function of a thermostat in an HVAC system?

a) To regulate refrigerant flow

b) To control temperature by cycling the system on and off

c) To measure air velocity

d) To monitor humidity

Rationale: The thermostat senses room temperature and turns the

system on or off to maintain the setpoint.

• Which of the following components compresses refrigerant vapor?

a) Evaporator

b) Condenser

c) Compressor

d) Metering device 1 / 4

Rationale: The compressor increases refrigerant pressure and

temperature by compressing the vapor.

• What happens to the refrigerant in the condenser coil?

a) It changes from vapor to liquid

b) It changes from liquid to vapor

c) It absorbs heat from the air

d) It expands to lower pressure

Rationale: In the condenser, refrigerant releases heat and condenses

into a liquid state.

4. The evaporator coil primarily functions to:

a) Reject heat

b) Absorb heat from indoor air

c) Compress refrigerant

d) Store refrigerant

Rationale: The evaporator coil absorbs heat from the indoor air,

cooling the space.

5. The term “superheat” refers to:

a) Liquid refrigerant cooling below saturation

b) Vapor refrigerant temperature above its saturation point

c) Subcooled liquid refrigerant

d) Air temperature leaving the condenser

Rationale: Superheat is the temperature of vapor refrigerant above

its saturation temperature at a given pressure. 2 / 4

• What type of metering device uses a movable pin to regulate

refrigerant flow?

a) Thermostatic Expansion Valve (TXV)

b) Capillary tube

c) Fixed orifice

d) Float valve

Rationale: A TXV modulates refrigerant flow based on evaporator

temperature and pressure.

• Which refrigerant is commonly used in residential air conditioning

systems?

a) R-410A

b) R-12

c) R-717

d) R-134a

Rationale: R-410A replaced R-22 in most modern residential systems

due to environmental regulations.

8. The suction line in a refrigeration system carries:

a) High-pressure vapor

b) Low-pressure vapor

c) High-pressure liquid

d) Low-pressure liquid

Rationale: The suction line carries low-pressure vapor from the

evaporator to the compressor. 3 / 4

• Which component in an HVAC system removes moisture from

refrigerant?

a) Filter-drier

b) Sight glass

c) Receiver

d) Accumulator

Rationale: A filter-drier contains desiccant material that absorbs

moisture and filters contaminants.

10. The function of an accumulator is to:

a) Store liquid refrigerant for later use

b) Prevent liquid refrigerant from entering the compressor

c) Measure refrigerant level

d) Expand refrigerant

Rationale: The accumulator ensures only vapor returns to the

compressor, preventing damage.

• What tool measures refrigerant pressure in a system?

a) Manifold gauge set

b) Thermometer

c) Vacuum pump

d) Multimeter

Rationale: A manifold gauge set is used to check both high and low

side pressures.

• / 4