MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Hydro-carbon refrigerants are commonly used nowadays. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following refrigerants are in the Freon group? |
| A. | Organic refrigerants |
| B. | Inorganic refrigerants |
| C. | Azeotrope refrigerants |
| D. | Hydrocarbon refrigerants |
| Answer» B. Inorganic refrigerants | |
| 3. |
What is the number of halo-carbon compound refrigerants commonly used as per ASHRAE? |
| A. | 42 |
| B. | 14 |
| C. | 41 |
| D. | 15 |
| Answer» C. 41 | |
| 4. |
What does azeotrope mean? |
| A. | Type of molecule |
| B. | Type of bond |
| C. | Stable mixture |
| D. | Unstable mixture |
| Answer» D. Unstable mixture | |
| 5. |
What is the number of halo-carbon compound refrigerants present as per ASHRAE? |
| A. | 40 |
| B. | 41 |
| C. | 42 |
| D. | 43 |
| Answer» D. 43 | |
| 6. |
The refrigerants which are first cooled by _________ refrigerants and then used for cooling purposes are known as ___________ refrigerants. |
| A. | secondary, primary |
| B. | primary, secondary |
| C. | tertiary, primary |
| D. | secondary, tertiary |
| Answer» C. tertiary, primary | |
| 7. |
When refrigerants take a direct part in the refrigeration system, then these types of refrigerants are called? |
| A. | Primary |
| B. | Secondary |
| C. | Tertiary |
| D. | Mixed |
| Answer» B. Secondary | |