• Home
  • Basics
  • Electrical Circuits
  • Power Systems
  • Power Electronics
  • MCQ

WatElectrical.com

Electricals Made Easy

You are here: Home / MCQ / Pyrometer Question & Answers

Pyrometer Question & Answers

April 18, 2023 By Wat Electrical

This article lists 50 Pyrometer MCQs for engineering students. All the Pyrometer Questions & Answers below include a hint and a link to the relevant topic wherever possible. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the Pyrometer.

Pyrometers are devices used for measuring high temperatures. When comparing pyrometers, there are several common detectors that are typically discussed. Some of these detectors include thermocouples, RTDs, thermistors, infrared detectors, and Fiber optic detectors. 

Thermocouples are the most common detector type used in pyrometers. They are simple, rugged, and inexpensive. However, they have limited accuracy and stability, and their output depends on the temperature gradient between the hot junction and the reference junction. 

Infrared detectors are based on the principle that all objects emit infrared radiation. They can measure the temperature of an object without physically contacting it. Infrared detectors can provide very accurate temperature measurements, but they are expensive and require a clear line of sight to the object being measured. 

Fiber-optic detectors use a Fiber-optic cable to transmit the temperature information from the measurement point to the pyrometer. This allows the pyrometer to be located remotely from the measurement point. Fiber-optic detectors can provide accurate measurements, but they are expensive and require careful installation. 

1). Which one of the following pyrometer measures brightness temperatures using visible light?

Hint
2). The temperature range of thermocouple detector is between ______________ degrees/centigrade?

Hint
3). Which one of the following laws used-to calculate the radiant heat flux emitted by a body at a certain temperature and surface area?

Hint
4). The response time of Fluke 572-2 pyrometer model is ________________ ms?

Hint
5). The optical lens are required in ________________ pyrometer?

Hint
6). The ratio of two intensities is a measurement method of _________________ pyrometer?

Hint
7). The direct measurement of surface temperature is a temperature measurement method of _____________ pyrometer?


Hint
8). Which one of the following pyrometers is based on the type of application?

Hint
9). The non-invasive temperature measurement in medicine is an application comes under _______________ pyrometer?

Hint
10). Which one of the following pyrometer measures infrared radiations emitted by object?

Hint
11). Which one of the following laws used-to calculate the heat exchange between two surfaces at different temperatures and distances from each other?

Hint
12). The response time of Omega OS523E pyrometer model is ________________ ms?

Hint
13). The distance to spot ratio is 10:1 in ______________ pyrometer model?

Hint
14). In which one of the following pyrometers the optical lens is not required?

Hint
15). The comparison to black body is a measurement method of _________________ pyrometer?

Hint

Pyrometer MCQ for Quiz

16). The measurement of the thermal radiation emitted by the surface is a temperature method of _____________ pyrometer?

Hint
17). The wavelength range of long wavelength pyrometer is __________________?

Hint
18). Which one of the following pyrometers is based on the temperature range of measurement?

Hint
19). In which one of the following sensors the stability is not good?

Hint
20). Which one of the following pyrometer measures temperatures through voltage generated by thermocouple?

Hint
21). Which one of the following laws used-to calculate the peak wavelength of the radiation emitted by a blackbody at a certain temperature?

Hint
22). The response time of Raytek RAYMT6U pyrometer model is ________________ ms?

Hint
23). The distance to spot ratio is 8:1 in ______________ pyrometer model?

Hint
24). In which one of the following pyrometers, the infrared sensor is required?

Hint
25). The distance to spot ratio not applicable in __________________ pyrometer?

Hint
26). The emissivity settings adjustable in _____________ pyrometer?

Hint
27). The measurement of thermal radiation is a measurement method of _________________ pyrometer?

Hint
28). The figure shown below is a block diagram of ____________________?

Radiation or Infrared Pyrometer Block Diagram

Hint
29). The distance to spot ratio is 30:1 in ______________ pyrometer model?

Hint
30). Which one of the following pyrometers measures the melting point of a material?

Hint

Pyrometer MCQ for Exams

31). The temperature range of Fiber optic detector is between ________ degrees/centigrade?

Hint
32). Which one of the following laws used-to calculate the spectral radiance of a blackbody at a certain temperature and wavelength?

Hint
33). The emissivity is adjustable from 0.10 to 1.00 in __________________ pyrometer model?

Hint
34). The response time is slow in _____________ pyrometer?

Hint
35). The measurement of voltage is a measurement method of _________________ pyrometer?

Hint
36). The figure shown below is a block diagram of ____________________?

Optical Pyrometer Block Diagram

Hint
37). The wavelength range of short wavelength pyrometer is __________________?

Hint
38). Which one of the following pyrometers is based on the wavelength range of measurement?

Hint
39). In which one of the following sensors, the physical strength is limited?

Hint
40). The temperature range of RTD detector is between ________ degrees/centigrade?

Hint
41). Which one of the following laws used-to calculate the temperature of a blackbody based on the peak wavelength of the radiation emitted?

Hint
42). The emissivity is fixed at 0.95 in __________________ pyrometer model?

Hint
43). The distance to spot ratio is 60:1 in ______________ pyrometer model?

Hint
44). The response time is fast in _____________ pyrometer?

Hint
45). The figure shown below is a block diagram of ____________________?

Pyrometer Block Diagram

Hint
46). The wavelength range of medium wavelength pyrometer is __________________?

Hint
47). Which one of the following pyrometers is based on the type of temperature measurement method?

Hint
48). The research and development application comes under ______________ pyrometer?

Hint
49). The distance to spot ratio is 50:1 in ______________ pyrometer model?

Hint
50). The temperature range of infrared detector is between ________ degrees/centigrade?

Hint

For More MCQs

  • Ammeter Question & Answers
  • Energy Meter Question & Answers
  • Q Meter Question & Answers
  • Tachometer Questions & Answers
  • Anemometer Questions & Answers 

clock.png

Time's up

SEARCH HERE!

Recent Posts

  • Shaded Pole Motor : Construction, Working, Circuit, Characteristics & Its Applications
  • Induction Generator : Construction, Working, Circuit, Types, Differences & Its Applications
  • Squirrel Cage Induction Motor : Construction, Working, Types, Differences & Its Applications
  • Proximity Effect : Working, Affecting Factors, Differences, Advantages, Disadvantages & Its Applications
  • Solid State Relay : Block Diagram, Circuit, Working, Types, Differences & Its Applications
  • Cycloconverter : Circuit, Working, Types, Control Strategies, Characteristics & Its Applications
  • Electric Flux : Formula, Types, Properties, Different Surfaces & Its Applications
  • Capacitor Start Motor : Circuit, Working, Phasor Diagram, Characteristics, Advantages & Its Applications
  • Electrical Hazard : Causes, Types, Do’S and Dont’S, Examples & Control Measures
  • Earth Leakage Circuit Breaker : Circuit, Working, Types, Differences, Advantages & Its Applications

Categories

  • Basics
  • Electrical
  • Electrical Circuits
  • Electrical Machines
  • Electrical Measurements
  • Electrical Projects
  • Electromagnetic Fields
  • Power Electronics
  • Power Plant
  • Power Systems

Copyright © 2025 · WatElectrical.com | Contact Us | Privacy Policy