Refrigeration And Air Conditioining Competetion At Sheikh Khalifa Bin Salman Institute

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| By Jalal2200

Jalal2200

Community Contributor

Quizzes Created: 1 | Total Attempts: 348

Questions: 10 | Attempts: 348 | Updated: Mar 20, 2023

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Questions and Answers

1.

Figure shows auto air conditioning cycle, part no.2 is called
- A.
  
  Liquid receiver
- B.
  
  Accumulator
- C.
  
  Oil seperator
- D.
  
  Option 4
Correct Answer
A. Liquid receiver

Explanation
The correct answer is liquid receiver. In an auto air conditioning cycle, the liquid receiver is responsible for storing the liquid refrigerant that is not evaporated in the evaporator. It helps to ensure that only vapor is sent to the compressor, preventing any liquid refrigerant from entering the compressor, which could cause damage. The liquid receiver also helps to maintain a steady flow of refrigerant to the evaporator.

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2.

Figure shows one type of expansion device is called
- A.
  
  Thermostatic expansion valve
- B.
  
  Capillary tube
- C.
  
  Orifice tube
- D.
  
  Option 4
Correct Answer
B. Capillary tube

Explanation
The correct answer is capillary tube. A capillary tube is a type of expansion device used in refrigeration and air conditioning systems. It is a long, narrow tube made of copper or other materials, and it has a small diameter. The capillary tube acts as a restriction in the refrigerant flow, causing a pressure drop and allowing the refrigerant to expand and cool down. This expansion process helps in regulating the flow of refrigerant and controlling the temperature in the system.

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3.

Thermostat is used to control temperature
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
A thermostat is a device that is used to control and maintain a desired temperature in a space. It is typically used in heating, ventilation, and air conditioning systems to regulate the temperature and ensure comfort. By sensing the current temperature and comparing it to the desired temperature, the thermostat can activate or deactivate the heating or cooling system to achieve the desired temperature. Therefore, the statement that a thermostat is used to control temperature is true.

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4.

Figure shows one type of compressors called
- A.
  
  Hermitic
- B.
  
  semi hermitic
- C.
  
  Open
Correct Answer
B. semi hermitic

Explanation
The figure shows one type of compressor, which is semi hermetic. This type of compressor has a sealed housing with a removable cover, allowing for maintenance and repair. It is commonly used in refrigeration and air conditioning systems.

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5.

Figure shows one method of heat transfer is called
- A.
  
  Radiation
- B.
  
  Convection
- C.
  
  Conduction
Correct Answer
C. Conduction

Explanation
The figure shows a method of heat transfer where heat is transferred through direct contact between two objects or substances. This method is called conduction. In conduction, heat energy is transferred from a region of higher temperature to a region of lower temperature through molecular collisions. This process occurs primarily in solids and is responsible for the transfer of heat through materials like metal.

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6.

Figure shows one type of condenser is called evaporative condenser
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The explanation for the correct answer, which is True, is that the figure provided shows a type of condenser called an evaporative condenser. This implies that the statement is accurate and aligns with the information presented in the figure.

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7.

Figure shows an example of refrigeration is called
- A.
  
  Water cooler
- B.
  
  Freezer
- C.
  
  Display refrigerator
Correct Answer
A. Water cooler

Explanation
Based on the given information, the figure represents an example of refrigeration, specifically a water cooler. A water cooler is a type of refrigeration device that cools and dispenses water, typically found in offices or public spaces. It is designed to provide chilled water for drinking purposes.

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