Question 101 : In the catalytic cracking, what Is the catalyst used?
1. Nacl
2. Kcl
3. ZnSO₄
4. Al₂O₃
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Question 102 : What is the catalyst used in Bergius process?
1. nickel oleate
2. phosphoric acid
3. zirconium oxide
4. aluminum oxide
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Question 103 : The calorific value of the natural gas is?
1. 1200-1400kcal/m³
2. 500-800kcal/m³
3. 800-900Kcal/m³
4. 12000-14000kcal/m³
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Question 104 : A coal has the following composition by weight: C=90%, O=4%, N=1%, S=0.5% and ash=5%.The NCV of the fuel was found to be 8480cal/g. Calculate the percentage of hydrogen and HCV of the fuel.
1. H=4.21%, HCV=8621.80cal/g
2. H=4.521%, HCV=8221.80cal/g
3. H=4.686%, HCV=8727.37cal/g
4. H=4.1%, HCV=8221.37cal/g
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Question 105 : The products of combustion of a good fuel _________
1. CO₂
2. CO
3. Must not be harmful
4. Must be harmful
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Question 106 : Octane number is a rating of _______
1. petrol knocking
2. diesel knocking
3. petrol cracking
4. diesel cracking
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Question 107 : Boiling point of LPG____
1. 546k
2. 373k
3. above room temperature
4. below room temperature
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Question 108 : Which of the following statements is correct?
1. 1k.Cal=2B.Th.U
2. 1B.Th.U=252Cal
3. 1k.Cal=100Cal
4. 1k.Cal=4C.H.U
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Question 109 : A fuel is a combustible substance containing ______ as major constitute.
1. nitrogen
2. oxygen
3. carbon
4. hydrogen
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Question 110 : When the coal is completely burnt in air, then the maximum temperature reached is called _________
1. calorific value of coal
2. gross calorific value
3. calorific intensity of coal
4. net calorific value
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