Surface temperature
Description : Infrared thermometer is used to measure a) Surface temperature b) Flame temperature c) Flue gas temperature d) Hot water temperature
Last Answer : Surface temperature
Description : measures oxygen and temperature of the flue gas. a) Fuel efficiency monitor. b) Combustion analyzer. c) Contact thermometer. d) Infrared thermometer.
Last Answer : Combustion analyzer
Description : Infrared thermometer is used to measure — a. Atmospheric temperature b. Solar radiation c. Crop canopy temperature d. Soil temperature
Last Answer : c. Crop canopy temperature
Description : Answer the following S. No Statement Chose the correct answer OR Fill-in-the-blanks 1 Fyrite measures CO2, O2 and SO2 True/False 2 Ultrasonic Flow Meter uses the principle of____& ____ Fill in the ... of RPM meter is used and for a visible shaft-end _______ type of RPM meter is used.
Last Answer : Sr No Statement Chose the correct answer OR Fill-in-the-blanks Solution 1 Fyrite measures CO2, O2 and SO2 True/False False 2 Ultrasonic Flow Meter uses the principle of____& ____ ... ] 10 In a gasification system the reduction zone is above the combustion zone True/False False
Description : Oxygen enrichment of combustion air does not result in increase of the (A) Flame temperature (B) Oxygen in the flue gas (C) Stack loss (D) Heat transfer rate in the furnace
Last Answer : (B) Oxygen in the flue gas
Description : Air filtration in a furnace (A) Reduces its thermal efficiency (B) Is indicated by flame sting out (C) Increases the flue gas temperature (D) None of these
Last Answer : (A) Reduces its thermal efficiency
Description : Combustion of fuel in a furnace with oxygen enriched air results in higher (A) Flue gas volume (B) Flame temperature (C) Fuel consumption (D) Stack loss
Last Answer : (B) Flame temperature
Description : Preheating of a gaseous fuel results in increased (A) Flame length (B) Flame temperature (C) Quantity of flue gas
Description : Presence of nitrogen in combustion air does not reduce the (A) Amount of heat liberated (B) Flame temperature (C) Flue gas temperature (D) Any of the above
Last Answer : (A) Amount of heat liberated
Description : The tool used for performance assessment and logical evaluation of avenues for improvement in Energy management and audit is a) Fuel substitution b) Monitoring and verification c) Energy pricing d) Bench marking 23. Infrared thermometer is used
Last Answer : Bench marking
Description : During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the (A) Incomplete combustion (B) Complete combustion (C) High oxygen in flue gas (D) None of these
Last Answer : (B) Complete combustion
Description : Ringelmann chart is used for the measurement of the (A) Combustibles present in automobile exhaust (B) Smoke density from a chimney (C) Exhaust gas density (D) Flue gas temperature
Last Answer : (B) Smoke density from a chimney
Description : Calculate the recoverable waste heat (Q, in kCal/hour) from flue gases using the followingparameters: V (flow rate of the substance) 2000 m3/hr r (density of the flue gas): 0.9 kg/m3 Cp (specific heat ... (temperature difference): 120 oC h (recovery factor): 50% a. 21600 b. 43200 c. 25600 d. 34000
Last Answer : 21600
Description : Heat recovery equipment will be most effective when the temperature of flue gas is: a) 250oC b) 200 oC c)400 oC d) 280 oC
Last Answer : 400 oC
Description : Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. (A) 350 (B) 750 (C) 1050 (D) 1250
Last Answer : (B) 750
Description : A _______ is used to measure atmospheric pressure. a. Thermometer b. Barometer c. Manometer d. None of the above
Last Answer : Barometer
Description : Instrument used to measure the absolute pressure of the atmosphere a. galvanometer b. thermometer c. barometer d. pressure gages
Last Answer : barometer
Description : The gas in a constant gas thermometer cooled to absolute zero would have _________. a. no volume b. no pressure c. zero temperature at all scales d. none of the above
Last Answer : no pressure
Description : What gas thermometer is based on the principle that at low pressure, the temperature of a gas is proportional to its pressure at constant volume? A. Constant-pressure gas thermometer B. Isobaric gas thermometer C. Isometric gas thermometer D. Constant-volume gas thermometer
Last Answer : Constant-volume gas thermometer
Description : The temperatures of the ideal gas temperature scale are measured by using a ______. A. Constant-volume gas thermometer B. Constant-mass gas thermometer C. Constant-temperature gas thermometer D. Constant-pressure gas thermometer
Description : In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the (A) Rate of firing and emissivity of flame (B) Thermal conductivity of the charge & ... (C) Nature of process; whether batch, continuous or intermittent (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : ____ sensors are used to indicate presence or absence of hot objects a.Vision sensors b.Infrared sensors c.Photo-metric sensors d.Range detectors
Last Answer : b.Infrared sensors
Description : For what purposes is an infrared thermometer used?
Last Answer : Infrared thermometers or laser thermometers as they are someimes known are useful for measuring temperature under circumstances wprobe type sensors cannot be used .
Description : Which of the following is an example of infrared sensor? A : Thermometer B : Accelerometer C : Gyroscope D : TV Remote
Last Answer : D : TV Remote
Description : Economizer is provided to utilize the flue gas heat for ___ a) preheating the boiler feed water b) preheating the stock c) preheating the combustion air d) preheating fuel
Last Answer : preheating the boiler feed water
Description : Which instrument is used to monitor O2, CO in flue gas? (EA) a) Combustion analyser b) Power analyser c) Pyrometer d) Fyrite
Last Answer : Combustion analyser
Description : instrument is used to monitor O2, CO in flue gas (EA) a) Combustion analyzer b) Power analyzer c) Pyrometer d) Fyrite
Description : Which instrument is used to monitor O2, CO in flue gas? c)Combustion analyzer c) Pyrometer d)Power analyzer d) Fyrite
Description : 115. Which instrument is used to monitor O2, CO in flue gas? a) Combustion analyzer c) Pyrometer b) Power analyzer d) Fyrite
Description : In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred (A) Through a metallic wall (B) By direct contact of hot flue gas with air (C) By ... material (like chequor bricks) and then heating the air from this hot material (D) None of these
Last Answer : (C) By heating an intermediate material (like chequor bricks) and then heating the air from this hot material
Description : What refers to the heating of the earth’s atmosphere not caused by direct sunlight but by infrared light radiated by the surface and absorbed mainly by atmospheric carbon dioxide? A. Greenhouse effect B. Global warming C. Thermal rise effect D. Ozone effect
Last Answer : Greenhouse effect
Description : A psychrometer (pron: si-'kro-me-ter) is used to measure humidity. It consists of two thermometers, one of which is wetted. The water is allowed to evaporate. Which thermometer reads the higher temperature. w) the wet one x) the dry one
Last Answer : ANSWER: X -- THE DRY ONE
Description : The atmosphere near the earth's surface is heated from below. Which of the following does not significantly contribute to this heating -----------? A. Conduction of heat upward from a ... infrared energy that has been radiated from the surface D. Heat energy from the earth's interior (Answer)
Last Answer : D. Heat energy from the earth’s interior (Answer)
Description : In order to use a substance to make a thermometer the substance must _________ with a temperature change. a. expand b. contract c. change d. increase
Last Answer : change
Description : How does a glass stem thermometer measure temperature?
Last Answer : What is the answer ?
Description : A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions ... battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals
Last Answer : Answer: A
Description : Which of the following devices should be used to measure the temperature of a battery electrolyte? A. Mercury thermometer B. Alcohol thermometer C. Thermocouple pyrometer D. Potentiometer
Last Answer : Answer: B
Description : How Do You Measure Temperature In A Wet Bulb Thermometer?
Last Answer : Wet bulb temperature is measured in a wet bulb thermometer by covering the bulb with a wick and wetting it with water. It corresponds to the dew point temperature and relative humidity.
Description : A _______ is used to measure the stator % winding temperature of the generator. (a) thermocouple (b) pyrometer (c) resistance thermometer (d) thermometer
Last Answer : (c) resistance thermometer
Description : A thermometer measures temperature in whole degrees only. If the temperature falls below 18 degrees, the heating is switched off. It is switched on again when the temperature reaches 21 degrees. What are the best values in degrees to ... and 25. B. 17,18 and19. C. 18, 20 and22. D. 16, 26 and 32.
Last Answer : A. 15,19 and 25.
Description : is a non-contact type measurement which when directed at a heat source directly gives the temperature read out. a) Thermocouples. c) Contact thermometers. b) Humidity. d) Infrared thermometers
Last Answer : Infrared thermometers
Description : is a non-contact type measurement which when directed at a heat source directly gives the temperature read out. a) Thermocouples. b) Contact thermometers. c) Humidity. d) Infrared thermometers.
Last Answer : Infrared thermometers.
Description : Radian is used to measure - (1) Temperature (2) Intensity of Flame (3) Angle (4) Solid Angle
Last Answer : (3) Angle Explanation: Kelvin is used to measure Temperature, Candela is used to measure Intensity of flame, Steredian is used to measure Solid Angle.
Description : Water-tube boiler is the one, in which (A) Water passes through tubes and flue gases around it (B) Tube carrying hot flue gases are immersed in a pool of water (C) Tubes are placed in vertical position (D) None of these
Last Answer : Option A
Description : To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is (a) divided by its molecular weight (b) multiplied by its molecular weight (c) ... by its density (d) multiplied by its specific weight (e) divided by its specific weight.
Last Answer : Answer : b
Description : Give a reading as the length of some liquid column: water, alcohol, etc. a. Banometer b. Nanometer c. Thermometer d. Manometer
Last Answer : Manometer