1. . For which type measurement the RTD is used?
(A) Temperature
(B) Resistance
(C) Humidity
(D) Pressure
2. . What device is similar to an RTD but has a negative temperature coefficient?
(A) Strain gauge
(B) Thermistor
(C) Negative-type RTD
(D) Thermocouple
3. . RTD stands for ________.
(A) Resistance Temperature Device
(B) Resistance Temperature Detector
(C) Reluctance Thermal Device
(D) Resistive Thermal Detector
4. . The most common material/s used for RTD is/are ________.
(A) Platinum
(B) Copper
(C) Nickel
(D) All these
5. . The electrical resistance of RTD generally increases with the________ of temperature
(A) Increase
(B) Decrease
(C) Remain same
(D) Difference
6. . RTDs are typically connected with other fixed resistors ________.
(A) In a pi configuration
(B) And variable resistors
(C) In a bridge configuration
(D) And capacitors in a filter-type circuit
7. . A platinum RTD has a resistance of 100 ohms at 100°C. If the temperature coefficient is 0.004 / °C, what would be the change in resistance if the temperature rise is 50 °C?
(A) 100 Ω
(B) 50 Ω
(C) 25 Ω
(D) 20 Ω
8. . An increase in electrical resistance of material when their temperature is raised is called _________ temperature coefficient.
(A) Negative
(B) High
(C) Positive
(D) Low
9. . The main component of the RTD is the _________ used in it
(A) Shell
(B) Connection head
(C) Insulator
(D) Metal
10. . In PT100 the resistance is ________ at ice point (or 0°C).
(A) 100 Ω
(B) 0 Ω
(C) 100 KΩ
(D) 0 KΩ
11. . A platinum resistance thermometer (PRT) is constructed from a high purity __________ element
(A) Platinum
(B) Copper
(C) Nickel
(D) All these
12. . Platinum is the best metal for RTD because of its __________.
(A) Linearity
(B) Cost
(C) Melting point
(D) Shape
13. . PRT stands for __________.
(A) Platinum reactance thermometer
(B) Platinum resistance tachometer
(C) Positive resistance thermometer
(D) Platinum resistance thermometer
14. . The main component of the RTD is the _______ used in it.
(A) Terminals
(B) Metal
(C) Insulator
(D) Winding