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A fluctuating voltage supply is detrimental to a refrigerator motor, but not a ceiling fan motor, although both are single-phase induction motors because, the refrigerator motor
  • a)
    Is made more robust than the fan motor
  • b)
    Is subjected to short duty cycle but the fan motor is subjected to continuous duty
  • c)
    Is enclosed in a sealed unit while the fan motor is open to the environment
  • d)
    Load is constant, but the fan motor load is voltage dependent.
Correct answer is option 'C'. Can you explain this answer?
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A fluctuating voltage supply is detrimental to a refrigerator motor, b...
A fluctuating voltage supply is detrimental to a refrigerator motor, but not a ceiling fan motor because the refrigerator motor is enclosed in a sealed unit while the fan motor is open to the environment.
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A fluctuating voltage supply is detrimental to a refrigerator motor, b...
The Answer:

Explanation:
When it comes to a fluctuating voltage supply, a refrigerator motor is more affected than a ceiling fan motor due to the following reasons:

1. Enclosure:
The refrigerator motor is enclosed in a sealed unit, which provides better protection against external factors such as dust, humidity, and temperature fluctuations. On the other hand, the ceiling fan motor is open to the environment, making it less susceptible to voltage fluctuations.

2. Robustness:
Refrigerator motors are typically designed to be more robust compared to ceiling fan motors. This is because refrigerators require higher starting torque and have a higher power rating. The robust design helps the refrigerator motor withstand voltage fluctuations and maintain its performance.

3. Duty Cycle:
Refrigerators operate on a short duty cycle, meaning they are turned on and off periodically based on the temperature settings. On the other hand, ceiling fans operate continuously as long as they are switched on. The short duty cycle of the refrigerator motor makes it more prone to voltage fluctuations during the starting and stopping phases.

4. Load:
The load on a refrigerator motor is relatively constant since it is designed to maintain a specific temperature range inside the refrigerator. In contrast, the load on a ceiling fan motor is dependent on the voltage supplied. A fluctuating voltage supply can cause variations in the fan speed but does not have a significant impact on the motor itself.

Therefore, the correct answer is option C, which states that the refrigerator motor is enclosed in a sealed unit while the fan motor is open to the environment. The sealed unit provides better protection against voltage fluctuations, making the refrigerator motor more susceptible to damage.
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Community Answer
A fluctuating voltage supply is detrimental to a refrigerator motor, b...
A fluctuating voltage supply is detrimental to a refrigerator motor, but not a ceiling fan motor because the refrigerator motor is enclosed in a sealed unit while the fan motor is open to the environment.
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A fluctuating voltage supply is detrimental to a refrigerator motor, but not a ceiling fan motor, although both are single-phase induction motors because, the refrigerator motora)Is made more robust than the fan motorb)Is subjected to short duty cycle but the fan motor is subjected to continuous dutyc)Is enclosed in a sealed unit while the fan motor is open to the environmentd)Load is constant, but the fan motor load is voltage dependent.Correct answer is option 'C'. Can you explain this answer?
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A fluctuating voltage supply is detrimental to a refrigerator motor, but not a ceiling fan motor, although both are single-phase induction motors because, the refrigerator motora)Is made more robust than the fan motorb)Is subjected to short duty cycle but the fan motor is subjected to continuous dutyc)Is enclosed in a sealed unit while the fan motor is open to the environmentd)Load is constant, but the fan motor load is voltage dependent.Correct answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A fluctuating voltage supply is detrimental to a refrigerator motor, but not a ceiling fan motor, although both are single-phase induction motors because, the refrigerator motora)Is made more robust than the fan motorb)Is subjected to short duty cycle but the fan motor is subjected to continuous dutyc)Is enclosed in a sealed unit while the fan motor is open to the environmentd)Load is constant, but the fan motor load is voltage dependent.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A fluctuating voltage supply is detrimental to a refrigerator motor, but not a ceiling fan motor, although both are single-phase induction motors because, the refrigerator motora)Is made more robust than the fan motorb)Is subjected to short duty cycle but the fan motor is subjected to continuous dutyc)Is enclosed in a sealed unit while the fan motor is open to the environmentd)Load is constant, but the fan motor load is voltage dependent.Correct answer is option 'C'. Can you explain this answer?.
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