Engineering :: Petroleum Refining Engineering
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51. |
Which of the following compounds is added in LPG to impart a distinct odour? |
A. |
Amyl nitrate |
B. |
Ethyl mercaptan |
C. |
Tetra ethyl lead |
D. |
Phenol |
Answer: Option B
Explanation:
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52. |
Motor fuel gasoline is composed of |
A. |
methane through decane |
B. |
ethane through decane |
C. |
propane through decane |
D. |
hexane through decane |
Answer: Option D
Explanation:
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53. |
Select the correct statement |
A. |
Higher the indication period of gasoline poorer is the stability of the gasoline |
B. |
Higher the induction period of gasoline better is the stability of gasoline |
C. |
The induction period of gasoline has no relation with the stability of gasoline |
D. |
The induction period of gasoline must be less than 30 min. |
Answer: Option B
Explanation:
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54. |
Octane number is an important test for |
A. |
LPG |
B. |
Kerosine |
C. |
gasoline |
D. |
light diesel oil |
Answer: Option C
Explanation:
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55. |
The most popular antiknock agent is |
A. |
C2H5SH |
B. |
Pb(C2H5)4 |
C. |
Pb4C2H5 |
D. |
CH3SH |
Answer: Option B
Explanation:
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56. |
Which of the following hydrocarbons are the most desirable in gasoline? |
A. |
Paraffins |
B. |
Isoparaffins |
C. |
Naphthenes |
D. |
Aromatics |
Answer: Option D
Explanation:
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57. |
Octane number of n-heptane is taken to be |
Answer: Option B
Explanation:
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58. |
Octane number of paraffins |
A. |
remains constant with change in number of carbon atoms |
B. |
increases with increase in number of carbon atoms |
C. |
decreases with increase in number of carbon atoms |
D. |
none of the above |
Answer: Option C
Explanation:
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59. |
Which of the following hydrocarbons has maximum octane number? |
A. |
Benzene |
B. |
Cyclohexane |
C. |
Hexane |
D. |
Iso-hexane |
Answer: Option A
Explanation:
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60. |
Which of the following hydrocarbons has maximum octane number? |
A. |
O-Xylene |
B. |
Toluene |
C. |
Benzene |
D. |
Iso-octane |
Answer: Option A
Explanation:
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