Question: The RTDs use the principle of change of resistance with temperature. The properties of a conductor materials to be used as an element of an RTD should possess the following properties
Answer:
MCQ: The RTDs use the principle of change of resistance with temperature. The properties of a conductor materials to be used as an element of an RTD should possess the following properties
Correct Answer:
A. The change in resistance per unit change in temperature should be as small as possible
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Related Questions
- 1. Platinum is the commonly used metal for RTDs this is because
- 2. The resistance of thermometer is 5 Ω at 30°C and 6.5 Ω at 60°C. using linear approximation, the value of resistance temperature co-efficient at 45°C
- 3. The sensitivity of thermistors as compared with sensitivity of platinum resistance temperature detector over a temperature range of -100°C to 400°C to changes in temperature is
- 4. A thermistor exhibits
- 5. The resistance value of thermistor is 5000Ω at 25°C and its resistance temperature co-efficient is 0.04/°C. A measurement with a lead resistance of 10 Ω will cause an error of
- 6. The temperature transducers exhibits non-linear behavior. The order in which they exhibits non-linearity (highest to lowest) is
- 7. Three types of temperature transducers are compared as regard their sensitivity. The order in which they exhibits their sensitivities (highest to lowest ) is
- 8. Thermocouples are passive
- 9. Thermocouples
- 10. A thermocouples produces a voltage of 50mV. Its internal resistance is 50Ω. The resistance of its lead is 10 Ω.its ouput is read by a PMMC meter having an internal resistance of 120 Ω. The output voltage indicated is
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