Temperature Measurement Question & Answers July 29, 2022 By WatElectronics This article lists 100 Temperature Measurement MCQs for engineering students. All the Temperature Measurement 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, or interviews, or professionals who would like to brush up on the fundamentals of Temperature Measurement. Temperature is measured in terms of three scales Celsius, Kelvin, and Fahrenheit, and describes the process of measuring a current local temperature for immediate or later evaluation. Qualitative analysis of temperature with hot, cold, and warm. Scales commonly used are the Fahrenheit scale which is measured in terms of Degree F, the Celsius scale which is measured in terms of Degree C, Kelvin scale which is measured in terms of Degree K. Three main conversions of temperature also take place in between three scales. Some other instruments used for measuring the temperature of a substance or body is Thermocouples, Infrared thermometers, thermistors, resistance temperature detector, pyrometer, and Langmuir probes which measure the electron temperature of the substance. The thermocouple is simple to construct, it is more durable as no need for a bridge circuit, and its accuracy is high with good response. RTD produces stable output with linear accuracy, precision, a wide range available, and easy installation and updating do in it. A thermistor is very quickly operated with low cost and high sensitivity and responsiveness to altering in temperature and is compatible with all devices. Name Email 1). Temperature is measured with a device called _____? Meter Thermometer Pyrometer Thyristor None Hint 2). Temperature is measured using ____ units? One Two Three Four None Hint 3)._____ formula is used to convert from one unit to another unit? Mixed Conversion Static Dynamic None Hint 4)._____ defines the measure of hot and cold differences? Temperature Thermometer Wind Humidity None Hint 5). Temperature is an average measure of ____ energy for particles of matter? Motion Kinetic Potential Electric None Hint 6). More kinetic energy, the higher the _____ of an object? Voltage Current Temperature None of these None Hint 7). ____ acts as a working fluid in a glass thermometer? Hydrogen Mercury Oxygen None of the above None Hint 8). As temperature increases, the ____ of fluid also increases? Height Width Volume Length None Hint 9). _____ is an instrument used for the measurement of temperature? Thermocouples Coupler Meter Thermo None Hint 10). _____ is used for measuring the electron temperature of a plasma? Langmuir Probe High Probes Low Probes Constant probes None Hint 11). RTD Stands for______? Resistance Termo detect Resistance temperature detector Resistance Thermal device None of these None Hint Read more about Temperature Sensor None 12) SI unit of temperature is _____? Meter Centimeter Kilometer Kelvin None Hint 13). According to the Kelvin scale, the frozen point of water is _____? 273.15K 373.15K 474.15K 573.15K None Hint 14). According to the Kelvin scale, the steaming point of water is _____? 273.15K 373.15K 474.15K 573.15K None Hint 15). According to the Fahrenheit scale, the frozen point of water is ___? 32 degrees 22 degrees 42 degrees 52 degrees None Hint 16). According to the Fahrenheit scale, the steaming point of water is____? 212 degrees 312 degrees 412 degrees 102 degrees None Hint 17). According to the Celsius scale, the frozen point of water is ___? 2 degrees 1 degree 0 degrees 3 degrees None Hint 18). According to the Celsius scale, the steaming point of water is ___? 200 degrees 100 degrees 0 degrees 3 degrees None Hint 19). Conversion of temperature from celsius to kelvin is, K=____? C+273.15 C-273.15 C/273.15 C*273.15 None Hint 20). Conversion of temperature from Kelvin to celsius is, C=____? K+273.15 K-273.15 K/273.15 K*273.15 None Hint 21). Heat from the measuring instrument can cause a temperature ____? Loss High Gradient Volume None Hint 22). Measurement of _____ temperature normalizes the humidity effect? Hot Bulb Wet Bulb Dry Bulb None of these None Hint 23). Heat depends on the ____ of atoms and molecules? Velocity Speed Temperature None of these None Hint 24). Heat energy flows from one body to another body due to the ___ in temperature? Sum Difference Division None of these None Hint 25). The first invention to measure the temperature was by ___? Randstad Brownie Galileo Turner None Hint Temperature Measurement MCQs for Interviews 26). Thermometer was ineffective because water ___ at a low temperature? Solid Cube Froze Gas None Hint 27). A mercury thermometer consists of a long, narrow, and uniform glass tube called the ___? Branch Trunk Stem Root None Hint 28). The scales on which temperature is measured are ___ on the stem? Marked Moved Transform None Of these None Hint 29). A capillary tube is there inside the glass stem in which mercury gets ____? Extreme Expanded Removed Invaded None Hint 30). Mercury is toxic and it is difficult to dispose of it when using the thermometer ____? Breaks Remains Moves Constant None Hint 31). _____thermometers have come into play which don’t contain mercury? Analog Digital Thermal None of these None Hint 32). The two commonly used thermometers are Clinical thermometers and also_____thermometers? Analog Digital Laboratory None of these None Hint 33). Clinical thermometers are used in homes, clinics, and _____? Hospitals Museums Broadcast Stations None Hint 34). The Fahrenheit scale is more ____than the Celsius scale? Constant Sensitive Higher Lower None Hint 35). Laboratory thermometers can be used to notice the temperature in ___ labs? Agriculture School Railways None of these None Hint 36). Laboratory thermometer used in industries to measure the temperature of solutions or _____? Meters Instruments Radars None of these None Hint 37). The stem, as well as the bulb of the laboratory thermometer, is ____ when compared to the clinical thermometer? Smaller Longer Narrow Wider None Hint 38). Mercury has a constant coefficient of_____? Expansion Narrow Small Complex None Hint 39). ____ strip thermometers change color to show the temperature? Iron Steel Plastic None of the above None Hint 40). The temperature is measured by passing a small ___ current thru the device? AC DC Potential None of these None Hint 41). Heat is directly related to the _____? Volume Current Resistance Temperature None Hint 42). As long as temperature increases, the fluid also ____? Diminishes Constant Null Increases None Hint 43). Galileo invented the rudimentary ___ thermometer in 1593? Digital Water Strip Infrared None Hint 44). In 1974, Gabriel Fahrenheit invented the ___ thermometer? Digital Water Mercury Infrared None Hint 45). Clinical thermometers contain ___ which prevents mercury to go back when it is taken out of the patient’s mouth? Switch Mode Kink Link None Hint 46). How many scales of temperature exist on either side of the mercury thread? 2 3 4 5 None Hint 47). Absence of kink in ____ thermometers? Clinical Laboratory Digital Infrared None Hint 48). Laboratory thermometers hold values in ____ scales? Celsius Fahrenheit Kelvin None of these None Hint 49). Clinical thermometers hold values in ____ scales? Celsius Fahrenheit Kelvin None of these None Hint 50). Mercury is clearly ____? Opaque Transparent Visible Blur None Hint Temperature Measurement MCQs for Exams 51). Mercury is very ____ in availability? Cost Cheap High More None Hint 52). Temperature measurement is _____ due to the presence of mercury? Low High Accurate Modified None Hint 53). Glass thermometers have a ____ that narrows at a particular point? Node Bore Stem Pin None Hint 54). Major drawback of the glass thermometer is that has ____ pressure capacity? Unlimited Limited Increased Decreased None Hint 55). A ____ is a closed metal tube that holds fluid and a thermometer within it? Thermowell Thermostat Thermoplastic None Of these None Hint 56). The amount of immersion in the fluid will have a ___ effect on the accuracy? Clear Drastic Real Unreal None Hint 57). Bimetal thermometer was less accurate, but more ____ measuring device than the glass thermometer? Precise Rugged Clear Path Straight None Hint 58). The bimetal sensing element consists of a metal element shaped like a ___spring? Flat Rounded Curled Oval None Hint 59). The motion of the spring-shaped material moves the ____? Spring String Corner Indicator None Hint 60). After the development of the thermometer, the temperature ___ come into existence? Coil Spring Probe Contact None Hint 61).____ is used to describe the voltage-creating devices in the thermopile classification? Thermocouple Thermopile Thermoprobe None of these None Hint 62). Amount of resistance change is defined by ∆R=____? k/∆T k+∆T k∆T None of these None Hint 63). The RTD was developed after the ____to obtain greater accuracy? Thermistor Thermopile Thermostat None Of these None Hint 64). RTD operates based on changes of resistance of pure ___? Resistance Voltage Current Metals None Hint 65). The _____RTD is the standard for high-accuracy measurement elements? Gold Platinum Silver None of these None Hint 66). RTD devices are much more ___ and accurate than thermocouples? Non-Linear Linear Finite Infinite None Hint 67). Resistance Temperature Detector responds very ___? Fast Slow Lean None of these None Hint 68). Resistance Temperature Detector cost is ___ in development? Low Less High Constant None Hint 69). The _____is a device that changes its electrical resistance with temperature? Thermistor Thermopile Thermostat None of these None Hint 70). Small change in temperature leads to a change in resistance because of ___ material? Conductors Insulators Semiconductors None of these None Hint 71). As temperature increases in the thermistor, then the resistance value ___? Increases Decreases Constant Finite None Hint 72).Thermistors are ______ in response? Linear Non-Linear Accurate Constant None Hint 73). Thermistors have ___ resistor elements. Two Three Four One None Hint 74). Big advantage of thermistors is the small ____? Range Size View Rate None Hint 75). Thermistor is a low ___of the devices? Cost Size Range View None Hint Temperature Measurement MCQs for Interviews 76). Undesirable effect called _____ exists in thermistors and must be taken care of? Self-heating Losing Involvement None Of these None Hint 77). If the current flow is too high, the resistor will dissipate energy in the form of ____? Pressure Heat Volume Current None Hint 78). The total heat dissipated by the thermistor in the circuit should be less in ___? Volume Air Glass Container None Hint 79). The total heat dissipated by the thermistor in the circuit should be high in ___? Air Liquid Solid Vacuum None Hint 80). Thermistors are available in a variety of _____? Packages Nodes Lines None of these None Hint 81). ____ are thermistors that are encapsulated in long tubes of material, typically stainless steel? Springs Probes Units Nodes None Hint 82). Limitations of ____ dissipations exist in thermistors? Voltage Current Power Resistance None Hint 83). If the _____ is too high, the probe will start dissipating heat? Voltage Current Resistance Temperature None Hint 84). The purity of the metal is a factor in how accurate the ____is? Temperature Transducer Spring None of these None Hint Read more about Transducer 85). The thermopile is a group of thermocouples connected in ____? Series Parallel Sequence Random None Hint 86). The thermocouple is an extremely ____device? Low Versatile Inaccurate Variable None Hint 87). Thermocouples today are made from two pieces of dissimilar ___, welded together in a bead? Voltage Current Wire None of these None Hint 88). The ___ produced by the thermocouple is always small? Current Resistance Voltage Amplification None Hint 89). Due to the millivolts range, the thermocouple range is ____? Linear Non-Linear Constant Null None Hint 90). The temperature is _____to a voltage by the thermocouple? Resultant Converted Remained None of the above None Hint 91). ____ device is essentially a temperature variable resistance device? Probe Resistor Comparator Actuator None Hint 92). The non-contact temperature sensor category includes a wide variety of primarily ___ devices? Comparator Optical Resonator Motor None Hint 93). The accuracy of a thermometer is greatly dependent on the ___process? Altering Manufacturing Moving None Hint 94). Pure metal devices are highly accurate and ___ over long periods? Stable Resistant Constant None of these None Hint 95). Temperature differences produce electrical potential which is called ___? Thermistor Seebeck effect Transition effect None of these None Hint 96). Drawbacks of RTD are low ____? Fluctuation Sensitivity Cost Range None Hint 97). Thermocouple is not ____ as RTD? Good Range Wide Stable None Hint 98). Drawback of RTD is ___ circuit is needed with power supply? Feedback Bridge Less High None Hint 99). Thermistor is susceptible to ___ errors? Feedback Self-Heating Low Compared None Hint 100). Thermocouple is not easily broken due to good ___? Range Heal Size Durability None Hint Please fill in the comment box below. Time's up
