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For quick response of a thermocouple to observe varying temperature of fluids
- a)wire diameter must be large
- b)wire material density must be large
- c)wire material specific heat must be large
- d)wire surface heat transfer coefficients must be large
Correct answer is option 'D'. Can you explain this answer?
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For quick response of a thermocouple to observe varying temperature o...
If the surface that transfer coefficient is large then the rate of heat transfer will be more and hence thermocouple will be quick to respond to the varying temperature of fluids.
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For quick response of a thermocouple to observe varying temperature o...
Quick response of a thermocouple to observe varying temperature of fluids
To ensure a quick response of a thermocouple to observe varying temperature of fluids, the wire surface heat transfer coefficients must be large. Let's understand the significance of each option and why option 'D' is the correct answer.
A) Wire diameter must be large:
- The diameter of the wire does not directly affect the response time of the thermocouple.
- Increasing the wire diameter may improve the mechanical strength of the thermocouple, but it does not enhance its ability to respond quickly to temperature changes.
B) Wire material density must be large:
- The density of the wire material is irrelevant to the response time of the thermocouple.
- Density is a measure of mass per unit volume and does not impact the thermocouple's ability to detect temperature changes quickly.
C) Wire material specific heat must be large:
- Specific heat refers to the amount of heat required to raise the temperature of a substance by a certain amount.
- While specific heat plays a role in heat transfer, it does not directly affect the response time of the thermocouple.
- The specific heat of the wire material does not impact the thermocouple's ability to sense temperature variations in fluids quickly.
D) Wire surface heat transfer coefficients must be large:
- The surface heat transfer coefficient is a measure of the rate at which heat is transferred between a solid surface and a fluid.
- A large surface heat transfer coefficient indicates that heat is transferred more efficiently between the wire surface and the surrounding fluid.
- A thermocouple with a higher surface heat transfer coefficient will respond more quickly to changes in the fluid's temperature.
- This is because the larger heat transfer coefficient facilitates faster heat exchange, allowing the thermocouple to detect temperature variations more rapidly.
Therefore, the correct answer is option 'D' - wire surface heat transfer coefficients must be large in order to ensure a quick response of a thermocouple to observe varying temperature of fluids.
To ensure a quick response of a thermocouple to observe varying temperature of fluids, the wire surface heat transfer coefficients must be large. Let's understand the significance of each option and why option 'D' is the correct answer.
A) Wire diameter must be large:
- The diameter of the wire does not directly affect the response time of the thermocouple.
- Increasing the wire diameter may improve the mechanical strength of the thermocouple, but it does not enhance its ability to respond quickly to temperature changes.
B) Wire material density must be large:
- The density of the wire material is irrelevant to the response time of the thermocouple.
- Density is a measure of mass per unit volume and does not impact the thermocouple's ability to detect temperature changes quickly.
C) Wire material specific heat must be large:
- Specific heat refers to the amount of heat required to raise the temperature of a substance by a certain amount.
- While specific heat plays a role in heat transfer, it does not directly affect the response time of the thermocouple.
- The specific heat of the wire material does not impact the thermocouple's ability to sense temperature variations in fluids quickly.
D) Wire surface heat transfer coefficients must be large:
- The surface heat transfer coefficient is a measure of the rate at which heat is transferred between a solid surface and a fluid.
- A large surface heat transfer coefficient indicates that heat is transferred more efficiently between the wire surface and the surrounding fluid.
- A thermocouple with a higher surface heat transfer coefficient will respond more quickly to changes in the fluid's temperature.
- This is because the larger heat transfer coefficient facilitates faster heat exchange, allowing the thermocouple to detect temperature variations more rapidly.
Therefore, the correct answer is option 'D' - wire surface heat transfer coefficients must be large in order to ensure a quick response of a thermocouple to observe varying temperature of fluids.
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For quick response of a thermocouple to observe varying temperature of fluidsa)wire diameter must be largeb)wire material density must be largec)wire material specific heat must be larged)wire surface heat transfer coefficients must be largeCorrect answer is option 'D'. Can you explain this answer?
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