Pick out the wrong statement. (A) Main constituents of LPG are propane and butane (B) C.V. of natural gas is about 10000 KCal/Nm3 (C) C.V. of LPG is about 26000 kcal/Nm3 (11500 kcal/kg)(D) L.P.G. is lighter than air

Pick out the wrong statement.
(A) Main constituents of LPG are propane and butane
(B) C.V. of natural gas is about 10000 KCal/Nm3
(C) C.V. of LPG is about 26000 kcal/Nm3
(11500 kcal/kg)
(D) L.P.G. is lighter than air
by

1 Answer

Answer :

(D) L.P.G. is lighter than air
by

Related questions

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

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Last Answer : (A) Propane and acetylene

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Last Answer : D) B.F gas and coke oven gas

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Last Answer : (B) 25,000

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Last Answer : (D) Calorific value of natural gas is more than that of LPG

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Last Answer : (B) Calorific value

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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

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Last Answer : (C) 5,400

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Last Answer : (A) 1300

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Last Answer : (B) 4200

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Description : Calorific value of blast furnace gas is around __________ KCal/Nm3 . (A) 850 (B) 1800 (C) 4200 (D) 6500

Last Answer : (A) 850

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Last Answer : (D) Vander wall adsorption is also called chemisorption

Major constituent of natural gas is a) ethane b) methane c) butane d) propane

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LPG when brought to atmospheric pressure & temperature will be a (A) Liquid lighter than water (B) Liquid heavier than water (C) Gas lighter than air (D) Gas heavier than air

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Last Answer : b. 10550

Maintain 850 OC for 1 hour (soaking time).  Cool the material to 60 OC in 4 hours. a) Calculate the efficiency of the furnace, if the specific heat of steel is 0.12 kcal/kgOC and fuel oil consumption per batch is 1400 litres.  GCV of fuel oil - 10200 kcal/kg,  Cost of fuel oil - Rs. 46,000/kL,  Sp. gr. of fuel oil - 0.92. b) Due to high cost of oil, the plant management decides to convert to a lower operating cost LPG fired furnace lined on the inside with ceramic fibre insulation and with an operating efficiency of 80%, for same requirement. The investment towards installation of the new furnace is Rs. 50 lakhs. Calculate the Return on Investment, if the plant operates two batches per day and 250 days in a year.  Cost of LPG - Rs. 75/kg,  GCV of LPG - 12500 kcal/kg.

Description : In a heat treatment shop, steel components are heat-treated in batches of 80 Tons. The  heat treatment cycle is as follows;  Increase temperature from 30 OC to 850 OC in 3 hours.  ... efficiency of 80%, for same requirement. The investment towards installation of  the new furnace is Rs. 50

Last Answer : Quantity of steel treated per batch - 80 Tons a. Efficiency of Furnace: Useful heat supplied to steel - 80000 x 0.12 x (850 - 30)   = 7872000 kcal/batch .1 mark Total heat ... = Rs. 64400/batch Efficiency of new LPG furnace - 80% Heat supplied in new LPG furnace - 7872000/0.8

L.P.G. is mostly liquefied (1) hydrogen (2) Oxygen (3) butane (4) methane

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Description : L.P.G. is mostly liquefied (1) hydrogen (2) oxygen (3) butane (4) methane

Last Answer : butane

Main constituents of biogas are (a) Methane and carbon monoxide (b) Butane and carbon monoxide (c) Methane and carbon dioxide (d) Ethylene and carbon dioxide

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Why butane gas is cheaper than LPG?

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Consider the following statements: 1. Detergents do not produce lather with hard water 2. Water gas is a mixture of carbon monoxide and hydrogen 3. Methane is the chief constituent of CNG 4. LPG contains mainly n-butane 5. The correct statements are: (a) 1, 2 and 4 only (b) 1,3 and 4 only (c) 2, 3 and 4 only (d) 1, 2 and 3 only

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Last Answer : Ans:(c)