Resistance Temperature Detector Question & Answers October 31, 2022 By WatElectronics This article lists 75 Resistance Temperature Detector MCQs for engineering students. All the Resistance Temperature Detector Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Resistance Temperature Detector. The resistance thermometers are also known as resistance temperature detectors or their short form is RTD. The resistance temperature detectors are the resistance transducers that measure the change in temperature by measuring the change in resistance. The resistance temperature detectors are majorly used for the measurements of temperature changes in the metals. The RTDs are generally more accurate and often have great stability over time than thermocouples and other temperature probes when monitoring with recommended ranges. In practice, an external monitoring device such as a data logger will be used to apply a constant current to the resistance temperature detector. The resistance of the resistance temperature detectors can be calculated and correlated to a temperature rating with extreme accuracy based on the metal's resistive properties at certain temperatures. The RTD comes in two-wire, three-wire, and four-wire configurations. The two-wire RTD doesn’t account for four lead wire resistance but results in a marginal increase in the potential for error. The RTD can also come with a variety of different resistor elements which will affect resistance sensitivity, temperature range, and more. Platinum, copper, gold, silver, and iron is common RTD metals. 1). Which one of the following RTD material is rarely used? Gold & silver Tungsten Gold silver alloy Phosphor bronze alloy None Hint 2). What are the advantages of resistance temperature detector? Standardized among vendors Requires current source or voltage source Low resistance/small change All of the above None Hint 3). The condenser microphone is an example of _________________ transducer? Self-generating transducer Passive transducer Both a and b None of the above None Hint 4). What is the standard form of RTD? Resistance Temporary Detector Resistance Temperature Device Resistance Temperature Detector None of the above None Hint 5). The temperature transducers are categorized into _________________ types? Two Three Four Five None Hint Read more about Transducers 6). The photo multiplier tube is an example of __________________ transducer? Ultrasonic Thermistor Photoelectric None of the above None Hint 7). Which one of the following RTD material typical resistance at zero degree centigrade is 100 ohms? Platinum Nickel Copper None of the above None Hint 8). Which one of the following is the signal characteristics of RTD? Resistance increases with temperature rise Voltage increases with temperature rise Temperature decreases with temperature rise None of the above None Hint 9). Which one of the following temperatures measurement devices is least accurate? RTD Thermocouple Thermistor None of the above None Hint 10). The temperature range of resistance temperature detector is _______________? -200 to 850 deg/C -270 to 1700 deg/C -73 to 260 deg/C None of the above None Hint 11). Which one of the following temperature measurement devices is less drift than thermocouple? RTD Thermocouple Thermistor Both a and c None Hint 12). The figure shown below is a block diagram of _________________? Thermocouple Thermistor RTD None of the above None Hint 13). The RTD type copper element metal temperature range is __________________? -260 to 850 deg/C -100 to 260 deg/C -100 to 360 deg/C -200 to 850 deg/C None Hint 14). Which one of the following RTD material is better for low temperature? Gold & silver Tungsten Gold silver alloy Phosphor bronze alloy None Hint 15). What are the disadvantages of resistance temperature detector? Standardized among vendors Very accurate and very stable Low resistance/small change All of the above None Hint 16). The thermocouple is an example of _________________ transducer? Self-generating transducer Passive transducer Both a and b None of the above None Hint 17). What is the standard form of NTC? Negative Temporary Coefficient Negative Temperature Coefficient Negative Time Coefficient None of the above None Hint 18). The RTD type platinum element metal base resistance at zero degree centigrade is _______________? 100 ohm 10 ohm 120 ohm None of the above None Hint 19). The temperature range of thermocouple is _______________? -200 to 850 deg/C -270 to 1700 deg/C -73 to 260 deg/C None of the above None Hint 20). Which one of the following RTD material is mostly is used material? Gold & silver Nickel Gold silver alloy Phosphor bronze alloy None Hint 21). Which one of the following RTD material typical resistance at zero degree centigrade is 200.64 ohms? Platinum Nickel Copper None of the above None Hint 22). Which one of the following is the signal characteristics of thermocouple? Resistance increases with temperature rise Voltage increases with temperature rise Temperature decreases with temperature rise None of the above None Hint 23). The RTD type platinum element metal temperature range is __________________? -260 to 850 deg/C -100 to 260 deg/C -100 to 360 deg/C -200 to 850 deg/C None Hint 24). The sensor and system cost are moderate in ________? RTD Thermocouple Both a and b None of the above None Hint 25). What are the advantages of RTD sensor? Linear output Repeatability Better stability All of the above None Hint Resistance Temperature Detector MCQ for Exams 26). The long-term stability is high in ___________________? RTD Diode sensor Both a and b None of the above None Hint 27). The long-term stability is medium in ___________________? RTD Diode sensor Both a and b Thermistor None Hint 28). The sensor dimensions are small to medium in __________________? RTD Thermistor Both a and b None of the above None Hint 29). The temperature range of thermistor is _______________? -200 to 850 deg/C -270 to 1700 deg/C -73 to 260 deg/C None of the above None Hint 30). Which one of the following RTD material has high precision? Gold & silver Nickel Platinum Phosphor bronze alloy None Hint 31). Which one of the following RTD material typical resistance at zero degree centigrade is 12.897 ohms? Platinum Nickel Copper None of the above None Hint 32). Which one of the following is the signal characteristics of thermistor? Resistance increases with temperature rise Voltage increases with temperature rise Temperature decreases with temperature rise None of the above None Hint 33). The RTD type nickel element metal temperature range is __________________? -260 to 850 deg/C -100 to 260 deg/C -100 to 360 deg/C -200 to 850 deg/C None Hint 34). The accuracy of the thermocouples _________________ degree centigrade? 0.1 0.05 0.03 >1 None Hint 35). The temperature range of platinum RTD 100-ohm wire wound and thin film is __________________? Wide Short Medium None of the above None Hint 36). Which one of the following sensor types is specify for general purpose sensing highest accuracy? RTD Thermocouple Thermistor None of the above None Hint 37). The thermal response is slow in _____________________ temperature sensing technique? Thermocouple RTD Thermistor None of the above None Hint 38). The long-term stability is low in ___________________? Thermocouple Diode sensor Both a and b Thermistor None Hint 39). What are the disadvantages of RTD sensor? Self-heating Less sensitive Costly All of the above None Hint 40). Which one of the following temperature measurement devices is highly subject to drift? RTD Thermocouple Thermistor Both a and c None Hint 41). The RTD type copper element metal base resistance at zero degree centigrade is _______________? 100 ohm 10 ohm 120 ohm None of the above None Hint 42). The temperature limit of copper RTD type material is __________________? -200 to 650 deg/C -100 to 315 deg/C -75 to 150 deg/C None of the above None Hint 43). The sensor dimensions are medium to large in __________________? Thermistor Thermocouple Both a and b None of the above None Hint 44). The accuracy of the RTD is _________________ degree centigrade? 0.1 0.05 0.03 >1 None Hint 45). The accuracy is high in _______________ RTD wire wound? Platinum RTD 100-ohm wire wound & thin film Platinum RTD 1000-ohm thin film Nickel RTD 1000-ohm wire wound Balco RTD 2000-ohm wire wound None Hint 46). In which one of the following RTD type, the self-heating is very low to low? Platinum RTD 100-ohm wire wound Platinum RTD 1000-ohm thin film Nickel RTD 1000-ohm wire wound Balco RTD 2000-ohm wire wound None Hint 47). The temperature range of nickel RTD 1000-ohm wire wound is __________________? Wide Short Medium None of the above None Hint 48). The interchangeability is excellent in ___________________ RTD type? Platinum RTD 100-ohm wire wound & thin film Platinum RTD 1000-ohm thin film Both a and b None of the above None Hint 49). The temperature range of platinum RTD 1000-ohm thin film is __________________? Wide Short Medium None of the above None Hint 50). The RTD type nickel element metal base resistance at zero degree centigrade is _______________? 100 ohm 10 ohm 120 ohm None of the above None Hint Resistance Temperature Detector MCQ for Students 51). The temperature limit of nickel RTD type material is __________________? -200 to 650 deg/C -100 to 315 deg/C -75 to 150 deg/C None of the above None Hint 52). The accuracy of the diode sensor is _________________ degree centigrade? 0.1 0.05 0.03 >1 None Hint 53). The lead effect is medium in _____________________ wire wound? Platinum RTD 100-ohm wire wound & thin film Platinum RTD 1000-ohm thin film Nickel RTD 1000-ohm wire wound Balco RTD 2000-ohm wire wound None Hint 54). The point (end) sensitivity is poor in _________________ RTD wire wound? Nickel RTD 1000-ohm wire wound Balco RTD 2000-ohm wire wound Both a and b None of the above None Hint 55). Which one of the following sensor types is specify for highest temperatures? RTD Thermocouple Thermistor None of the above None Hint 56). The temperature range of molybdenum is _______________? 100 deg/C -200 to 200 deg/C 1 deg/C 10 deg/C None Hint 57). The range of pt100, pt1000 is ___________________ degree centigrade? -200 to 850 deg/C -200 to –850 deg/C -100 to +260 deg/C -80 to +260 deg/C None Hint 58). The pyrometer is an example which comes under _________________ sensor? Contact Non-contact Both a and b None of the above None Hint 59). The resistance temperature detector sensors come under ______________ categories? Two Four Six Seven None Hint 60). The long-term stability and linearity are good in _______________? Platinum RTD 100-ohm wire wound & thin film Platinum RTD 1000-ohm wire wound Balco RTD 2000-ohm wire wound None of the above None Hint Resistance Temperature Detector MCQ for Quiz 61). The temperature sensors are categorized into _________________ types? Two Three Five Six None Hint 62). The bimetallic thermometers come under __________________ sensor? Contact Non-contact Both a and b None of the above None Hint 63). The figure shown below is a structure of _____________________ temperature Sensenig technique? RTD Thermometers Thermocouples None of the above None Hint 64). The range of pt200, pt500 is ___________________ degree centigrade? -200 to 850 deg/C -200 to -850 deg/C -100 to +260 deg/C -80 to +260 deg/C None Hint 65). The physical size/packaging is large in __________________ RTD wire wound? Nickel RTD 1000-ohm wire wound Balco RTD 2000-ohm wire wound Both a and b None of the above None Hint 66). The resistance temperature detector comes under __________________ sensor? Contact Non-contact Both a and b None of the above None Hint 67). The range of Cu10, Cu100 is ___________________ degree centigrade? -200 to 850 deg/C -200 to -850 deg/C -100 to +260 deg/C -80 to +260 deg/C None Hint 68). The lead effect is medium in _____________________ wire wound? Platinum RTD 100-ohm wire wound & thin film Platinum RTD 1000-ohm thin film Both a and b None of the above None Hint 69). The temperature range of Balco RTD 2000-ohm wire wound is __________________? Wide Short Medium None of the above None Hint 70). What is the standard form of PRTD? ProSales Resistance Temporary Detector ProSales Resistance Temperature Device ProSales Resistance Temperature Detector None of the above None Hint 71). The temperature limit of platinum RTD type material is __________________? -200 to 650 deg/C -100 to 315 deg/C -75 to 150 deg/C None of the above None Hint 72). The sensor dimensions are very small in __________________? Thermistor Thermocouple Diode sensor None of the above None Hint 73). The thermal response is fast in _____________________ temperature sensing technique? Thermocouple RTD Diode sensor Both a and c None Hint 74). The accuracy of the thermistor is _________________ degree centigrade? 0.1 0.05 0.03 >1 None Hint 75). The range of Ni120 is ___________________ degree centigrade? -200 to 850 deg/C -200 to -850 deg/C -100 to +260 deg/C -80 to +260 deg/C None Hint For More MCQs RTD Temperature Sensor Please fill in the comment box below. Time's up
