Question 51 : Which of the following releases less amount of carbon dioxide per unit of energy?
1. Coal
2. Oil
3. LPG
4. Petrol
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Question 52 : In moving bed catalytic cracking, the catalyst is in the form of ____________
1. fine powder
2. pallets
3. liquid form
4. gaseous form
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Question 53 : Aromatic compounds are produced from ________
1. natural gas
2. coal tar
3. oil gas
4. heavy gas
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Question 54 : Aromatic compounds are _____ with water.
1. dissolves
2. immiscible
3. forms lump
4. easily dissolves
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Question 55 : CNG has high auto-ignition temperature of_______
1. 813k
2. 993k
3. 1163k
4. 1273k
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Question 56 : Find the % of C from following data:% of moisture:10g% of volatile matter:9.5g% of ash:11.6g
1. 68.9g
2. 62.1g
3. 63.1g
4. 70.8g
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Question 57 : In determination of % of C and H, the coal is burnt in the stream of _______
1. pure sulphur
2. pure nitrogen
3. pure alcohol
4. pure oxygen
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Question 58 : What is the colour of the bio diesel?
1. orange
2. light yellow
3. dark orange
4. light brown
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Question 59 : During refining the petroleum, in fractional distillation, what is the temperature in still?
1. 800^oC
2. 400^oC
3. 300^oC
4. 100^oC
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Question 60 : Calculate the HCV of the coal from the given data:Weight of the fuel burnt=0.92Initial temperature=120CFinal temperature=19.20CWeight of the water in calorimeter is 1458gWater equivalent of calorimeter =14g
1. 11520k.cal/m³
2. 11560k.cal/m³
3. 11000k.cal/m³
4. 11590k.cal/m³
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