GATE Exam > GATE Questions > Bimetallic strips are employed in ________ t...
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Bimetallic strips are employed in ________ thermometers.
- a)Vapor-pressure
- b)Liquid-expansion
- c)Metal-expansion
- d)Resistance
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Bimetallic strips are employed in ________ thermometers.a)Vapor-press...
Bimetallic strips made by bonding high-expansion and low-expansion metals are used in the standard thermostat. When used as an industrial temperature indicator, these can be bent into a coil.
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Bimetallic strips are employed in ________ thermometers.a)Vapor-press...
Explanation:
Bimetallic strips:
- Bimetallic strips are made by bonding two different metal strips together, each with a different coefficient of thermal expansion.
- When the temperature changes, the two metals expand or contract at different rates, causing the strip to bend.
Metal-expansion thermometers:
- Metal-expansion thermometers use bimetallic strips to measure temperature changes.
- As the temperature increases, the bimetallic strip bends due to the differential expansion of the two metals.
- This bending motion is then converted into a temperature reading on a scale.
Advantages of bimetallic strip thermometers:
- They are simple and reliable.
- They have a wide temperature range.
- They are cost-effective.
Applications of bimetallic strip thermometers:
- They are commonly used in industrial applications, such as in ovens, boilers, and HVAC systems.
- They are also used in household appliances like thermostats and thermometers.
Conclusion:
Bimetallic strips are employed in metal-expansion thermometers due to their ability to accurately measure temperature changes using the differential expansion of two metals. They are widely used in various industrial and household applications for their simplicity, reliability, and cost-effectiveness.
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Bimetallic strips are employed in ________ thermometers.a)Vapor-pressureb)Liquid-expansionc)Metal-expansiond)ResistanceCorrect answer is option 'C'. Can you explain this answer?
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