Related Questions

Working principle of radiation pyrometer is based on the
A Wien's law
B Kirchoffs law
C Stafan-Boltzman law
D Seebeck effect
Starting temperature of optical radiation pyrometer is __________ °C.
A 800
B 400
C 1200
D 1500
Temperature of __________ can not be measured by an optical or radiation pyrometer.
A Hot blast (air) from stoves
B Molten slag flowing out of blast furnace
C Combustion space in boilers
D Rotary limestone calcination kiln
The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is
A Zero
B Negative
C Positive
D About 2 ohms per degree
Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
Which of the following is not classified as a thermo electric pyrometer?
A Resistance thermometer
B Thermocouple
C Optical pyrometer (disappearing filament type)
D Radiation pyrometer
Accurate temperature measurement performance of a radiation pyrometer can not be affected, if the
A Enhancement or attentuation of redia-tion occurs in the sighting path
B Object and surrounding are at almost the same temperature
C Object has varying emissivity
D Object is transparent
Which of the following is a 'contact' pyrometer?
A Resistance pyrometer
B Optical pyrometer
C Radiation pyrometer
D Infra red pyrometer
Which one of the following thermometers is known as pyrometer?
A Thermo-electric thermometers
B Radiation thermometers
C Gas thermometers
D Liquid thermometers
Rony and Jony are working on an assignment. Rony takes 6 hours to type 32 page on a computer, while Jony takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
A 7 hr 30 min
B 8 hr
C 8hr 15 min
D 8 hr 25 min

Next steps