Exams & Certification

Who must certify recovery equipment used during maintenance, service or repair of small appliances that use CFCs, HCFCs, and HFCs? A) An ASHRAE-approved laboratory.B) Recovery equipment for small appliances does not require approval.C) An AHRI 740 standards laboratory.D) An EPA-approved laboratory. The correct answer and explanation is : The correct answer is: C) An AHRI […]

For which of the following refrigeration systems/appliances would it be permissible to use a passive recovery device for recovery of CFCs, HCFCs, and HFCs? A) A centrifugal air conditionerB) A reciprocating liquid chillerC) A single compressor, large commercial walk-in freezerD) A domestic refrigerator The correct answer and explanation is : The correct answer is D)

Express the value or answer in powers of 10 to the correct number of significant figures: 4586.492450Square of 199.99Sum of (32.087 + 1.56 + 206.44) divided by 12.3 The correct answer and explanation is : Let’s break down each of the calculations step by step, focusing on expressing the answers in powers of 10 to

Which of the following is true regarding transferring ownership? The project manager is often involved in implementing the project deliverables. The person responsible for the project is identified at the project approval meeting. The project manager only communicates with the responsible person at the transfer meeting. The project manager has contact with the person responsible

Give answers to the following problems in the correct number of significant figures: Sum of 23.15, 0.984, 124, and 12.5Sum of 2.115, 23.04, 13.8, and 199.66Product of 127.08 and 13.1Quotient of 4466.83 divided by 35.61 The correct answer and explanation is : Let’s solve each of the problems one by one, ensuring that we adhere

A journal entry to record a payment on account will include a a. debit to accounts receivable.b. credit to accounts receivable.c. debit to accounts payable.d. credit to accounts payable. The correct answer and explanation is : The correct answer is d. credit to accounts payable. Explanation: When a business records a payment on account, it

A journal entry to record the sale of inventory on account will include a a. debit to inventory.b. debit to accounts receivable.c. debit to sales.d. credit to cost of goods sold. The correct answer and explanation is : The correct answer is b. debit to accounts receivable. Explanation: When inventory is sold on account, it

At the cellular level, photosynthesis occurs within Select one: a. both chloroplasts and mitochondria. b. the chloroplast. c. the nucleus of plants but not of animals. d. all plant cell organelles. e. the cristae of the mitochondria. The correct answer and explanation is : The correct answer is: b. the chloroplast. Explanation: Photosynthesis is a

Dissociative identity disorder mainly involves __. Select one: a. depersonalization b. schizophrenia c. different personalities d. derealization The correct answer and explanation is : The correct answer is c. different personalities. Dissociative Identity Disorder (DID), previously known as Multiple Personality Disorder, is a complex psychological condition characterized by the presence of two or more distinct

Which of the following best describes low loss fittings on refrigerant recovery devices used to recover CFCs, HCFCs, and HFCs? A) They can be either manually closed or automatically closed when disconnected to prevent loss of refrigerant from hoses.B) They are used to connect the recovery device to an appliance and leak only small amounts