SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam - SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

Question 1

Under the 2021 International Mechanical Code (IMC), when the quantity of refrigerant in an independent circuit exceeds the amount in Table 1103.1, refrigerant-containing components shall be located:

In any mechanical closet that has a louvered door to the occupied space Either outdoors or in a machinery room constructed to Chapter 11 In the smallest occupied space served by the system Above a suspended ceiling used as a return-air plenum

Correct Answer:

Either outdoors or in a machinery room constructed to Chapter 11

Question 2

A listed, factory-built condensing unit contains 5.5 lb of refrigerant. Does the 2021 IMC require a machinery room solely because of that charge?

Yes, any charge over 3 lb requires a machinery room Yes, unless the refrigerant is Group A1 No, listed equipment with not more than 6.6 lb is exempt regardless of safety group when installed to its listing No, because machinery rooms are required only for ammonia

Correct Answer:

No, listed equipment with not more than 6.6 lb is exempt regardless of safety group when installed to its listing

Question 3

A new industrial refrigeration plant will use R-717 (ammonia). Which standards govern that system under the 2021 IMC?

IMC Chapter 11 in full, because ammonia is listed in Table 1103.1 IIAR 2, IIAR 3, IIAR 4, and IIAR 5; the system is not required to comply with IMC Chapter 11 ASHRAE 15 only, with no IIAR documents The International Fuel Gas Code, because ammonia is treated as a fuel gas

Correct Answer:

IIAR 2, IIAR 3, IIAR 4, and IIAR 5; the system is not required to comply with IMC Chapter 11

Question 4

A supermarket rack with 280 lb of Group A1 refrigerant will be converted to a different A1 blend. What does IMC 1101.7 require before the refrigerant type is changed?

No notice is required if both refrigerants are Group A1 Prior notification to the code official and compliance with the provisions that apply to the new refrigerant Only a manufacturer letter left in the equipment packet Approval from EPA Section 609 instead of the building official

Correct Answer:

Prior notification to the code official and compliance with the provisions that apply to the new refrigerant

Question 5

Outdoor refrigerant circuit access ports on a rooftop condensing unit that is reachable from an unlocked stair and ladder must be:

Left with standard plastic Schrader caps so gauges can be connected quickly Fitted with locking-type tamper-resistant caps or otherwise secured against unauthorized access Removed and the ports brazed shut after startup Painted red and labeled only, without a locking cap

Correct Answer:

Fitted with locking-type tamper-resistant caps or otherwise secured against unauthorized access

Exam overview

About this Exam

Prepare with the SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam practice quiz. This question bank includes 100 questions covering refrigerant, evaporator, refrigeration, room, and charge. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

This practice set contains 100 questions from the matching question bank and focuses on refrigerant, evaporator, refrigeration, room, and charge. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

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