Description : Calorific value of bituminous coal may be around __________ Kcal/kg. (A) 500 (B) 1500 (C) 6500 (D) 20000
Last Answer : (C) 6500
Description : Calorific value of a typical dry anthracite coal may be around __________ Kcal/kg. (A) 1000 (B) 4000 (C) 8000 (D) 15000
Last Answer : (C) 8000
Description : Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg. (A) 1000 (B) 4000 (C) 6000 (D) 8000
Last Answer : (B) 4000
Description : The calorific value of producer gas is around __________ kcal/Nm3 . (A) 1300 (B) 500 (C) 4500 (D) 9000
Last Answer : (A) 1300
Description : The calorific value of 'LPG' (50% propane + 50% butane) is about __________ kcal/Nm3 . (A) 5000 (B) 25,000 (C) 10,000 (D) 15,000
Last Answer : (B) 25,000
Description : Steam side heat transfer co-efficient in an evaporator is in the range of __________ kcal/hr.m2°C. (A) 10-50 (B) 100-500 (C) 1000-1500 (D) 5000-15000
Last Answer : (D) 5000-15000
Description : Heating value of coal is approximately (A) 1000-2000 kcal / kg (B) 2000-4000 kcal / kg (C) 5000-6500 kcal / kg (D) 9000-10,500 kcal / kg
Last Answer : Ans: C
Description : Heating value of coal is approximately in power plant (A) 1000-2000 kcal / kg (B) 2000-4000 kcal / kg (C) 5000-6500 kcal / kg (D) 9000-10,500 kcal / kg.
Last Answer : 5000-6500 kcal / kg
Description : Calorific value of wood gas is about __________ kcal/Nm3 . (A) 1500 (B) 3300 (C) 5400 (D) 8500
Last Answer : (B) 3300
Description : The calorific value of natural gas is about __________ kcal/Nm3 . (A) 10,000 (B) 2,500 (C) 25,000 (D) 35,000
Last Answer : (A) 10,000
Description : Calorific value of furnace oil is about __________ Kcal/kg. (A) 10,000 (B) 15,000 (C) 5,000 (D) 20,000
Description : Calorific value of tar is about __________ Kcal/kg. (A) 8800 (B) 12000 (C) 14000 (D) 16000
Last Answer : (A) 8800
Description : Calorific value of coke oven gas is around __________ Kcal/Nm3 . (A) 900 (B) 4200 (C) 7500 (D) 2000
Last Answer : (B) 4200
Description : Calorific value of blast furnace gas is around __________ KCal/Nm3 . (A) 850 (B) 1800 (C) 4200 (D) 6500
Last Answer : (A) 850
Description : Calorific value of gobar gas (containing CH4 = 60% , H2 = 10% ; CO2 = 30%) may be about __________ Kcal/Nm3 . (A) 1,800 (B) 3,200 (C) 5,400 (D) 10,200
Last Answer : (C) 5,400
Description : Pick out the wrong statement. (A) Aromatics have higher specific gravity than paraffins (B) Gross calorific value (GCV) of petrofuels is equal to (12400 - 2100 ρ 2 ) where, ρ is the specific gravity ... volume basis (i.e., Kcal/litre) (D) Higher specific gravity of petrofuels means higher C/H ratio
Last Answer : (C) Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre)
Description : Calorific value of pitch creosote mixture (PCM) i.e., C.T.F.-200 is about (A) 8800 kcal/m3 (B) 8800 kcal/kg (C) Same as that of coal middling (D) 25000 kcal/kg
Last Answer : (B) 8800 kcal/kg
Description : Which of the following fuels has the highest calorific value per unit mass (kcal/kg)? (A) Coal (B) Kerosene (C) Natural gas (D) Furnace oil
Last Answer : (D) Furnace oil
Description : For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3 ), while the C.V. is same on weight basis (i.e., kcal/kg)? (A) Propane and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F. gas and coke oven gas
Last Answer : (A) Propane and acetylene
Description : For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg)? (A ... and acetylene (B) Propane and LPG (C) Sewage gas and gobar gas (D) B.F gas and coke oven gas
Last Answer : D) B.F gas and coke oven gas
Description : Calorific value of high speed diesel is kcal/Kg (a) 9500 (b) 10550 (c) 11550 (d) 12500
Last Answer : (b) 10550
Description : The calorific value of HSD is — Kcal/kg a. 10000 b. 10550 c. 11100 d. 11650
Last Answer : b. 10550
Description : Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the pressure of steam. (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease
Last Answer : (A) Decreases
Description : Transition length for a turbulent fluid entering into a pipe is around __________ times the pipe diameter. (A) 5 (B) 50 (C) 500 (D) 5000
Last Answer : (B) 50
Description : The calorific value of L.D. converter gas is about __________ Kcal/Nm3 . (A) 1800 (B) 800 (C) 4500 (D) 10000
Last Answer : (A) 1800
Description : Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm3 . (A) 4000 (B) 2500 (C) 6500 (D) 10000
Description : Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole. °K (A) 0 (B) ∞ (C) 50 (D) 100
Last Answer : (B) ∞
Description : or Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. (A) 5 (B) 50 (C) 500 (D) 5000
Last Answer : (C) 500
Description : From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. (A) 5 (B) 50 (C) 500 (D) 5000
Last Answer : (A) 5
Description : Which of the following has the least calorific value (kcal/Nm3 )? (A) Blast furnace gas (B) Coke oven gas (C) Sewage gas (D) Natural gas
Last Answer : (A) Blast furnace gas
Description : Pick out the wrong statement. (A) Percentage of ash in coke produced from medium coking coal is more than that in coal (B) The calorific value (kcal/Nm3 ) of coke oven gas reduces on ... plants in India at Talcher (Orissa) and Ramagundam (A.P) employ Kopper-Totzek process of coal gasification
Last Answer : (C) Ash is normally removed as 'fly-ash' in Kopper-Totzek process of coal gasification
Description : Which of the following has the highest calorific value (kcal/Nm3 )? (A) Carburetted water gas (B) Gobar gas (C) Natural gas (D) LPG
Last Answer : (D) LPG
Description : Which of the following gaseous fuels has the highest net calorific value (kcal/Nm3 )? (A) Producer gas (B) Carburetted water gas (C) Natural gas (D) Liquefied petroleum gas
Last Answer : (D) Liquefied petroleum gas
Description : Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. (A) 3-5 (B) 25-30 (C) 60-65 (D) 95-100
Last Answer : (B) 25-30
Description : Calorific value of alcohol is (A) 4 kcal/gm (B) 5.4 kcal/gm (C) 7 kcal/gm (D) 9 kcal/gm
Last Answer : Answer : C
Description : Calorific value of proteins as determined in a bomb calorimeter is (A) 4 kcal/gm (B) 4.8 kcal/gm (C) 5.4 kcal/gm (D) 5.8 kcal/gm
Description : The calorific value of wheat is about (A) 2.5 kcal/gm (B) 3.5 kcal/gm (C) 4.5 kcal/gm (D) 5.5 kcal/gm
Last Answer : Answer : B
Description : Hydrogen content in petroleum products varies from 12 to 15% (by weight). As a result the difference between gross and net heating value of petroleum fuels varies in the range of __________ kcal/kg. (A) 600-750 (B) 250-350 (C) 1000-1500 (D) 2000-2500
Last Answer : (A) 600-750
Description : Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are ... __________ °C. (A) 400-500 (B) 900-1000 (C) 1400-1500 (D) 1700-1800
Last Answer : (B) 900-1000
Description : The calorific value of lipid is (A) 4.0 Kcal/gm (B) 6.0 Kcal/gm (C) 9.0 Kcal/gm (D) 15 Kcal/gm
Description : Calorific value of lipids per gm is (A) 4 Kcal (B) 8 Kcal (C) 9 Kcal (D) None of these
Description : Prepayment of postage on cash facility is authorized by and how much letter may be posted to have these facility. a) HOC, UR-500 big city and 250 small city, Reg -50 b) DG post, UR-1000 big city and 500 ... -100 c) Head of the division UR-5000 big city and 1000 small city, Reg -500 d) None of these
Last Answer : a) HOC, UR-500 big city and 250 small city, Reg -50
Description : Dry air required to burn 1 kg of carbon completely may be around __________ kg. (A) 11 (B) 2 (C) 20 (D) 38
Last Answer : (A) 11
Description : Flue gas discharge velocity through chimney of a big thermal power plant may be around __________ m/sec. (A) 0.5 (B) 10 (C) 50 (D) 500
Last Answer : (B) 10
Description : 200 kg of solids (on dry basis) is subjected to a drying process for a period of 5000 seconds. The drying occurs in the constant rate period with the drying rate as, Nc = 0.5 10 -3 kg/m2 .s. The initial ... moisture/kg dry solid). (A) 0.5 (B) 0.05 (C) 0.1 (D) 0.15
Last Answer : (C) 0.1
Description : In a laboratory test run, the rate of drying was found to be 0.5 x 10 - 3 kg/m2 .s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry ... of the solids from 0.3 to 0.2 (dry basis) is (A) 2000 (B) 4000 (C) 5000 (D) 6000
Last Answer : (C) 5000
Description : Molecular weight of crude petroleum may be around (A) 50 (B) 250 (C) 1500 (D) 5000
Last Answer : (C) 1500
Description : Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas. (A) Unsaturated hydrocarbon content (B) Calorific value (C) Quantity of propane (D) Quantity of butane
Last Answer : (B) Calorific value
Description : Presence of __________ in a dry gaseous fuel does not contribute to its calorific value. (A) Sulphur (B) Oxygen (C) Hydrogen (D) Carbon
Last Answer : (B) Oxygen
Description : Condensing film co-efficient for steam on horizontal tubes ranges from 5000 to 15000 Kcal/hr.m2 .°C. Condensation of vapor is carried out inside the tube in a shell and tube heat ... drop through the exchanger is desired (D) Temperature of the incoming vapor is very high
Last Answer : (B) Supersaturated