Petroleum Refinery Engineering

81. Flash point of a liquid petroleum fuel gives an idea about its

1. Volatility
2. Explosion hazards characteristics
3. Nature of boiling point diagram
4. All (A), (B) and (C)

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82. Flash point of an oil gives an idea of the

1. Nature of boiling point diagram of the system
2. Amount of low boiling fraction present
3. Explosion hazards
4. All (A), (B) and (C)

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83. Flash point of an oil is determined by the

1. Pensky Martens apparatus
2. Ramsbottom apparatus
3. Saybolt viscometer
4. Conradson apparatus

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84. Flash point of atmospheric distillation residue is determined by _________ apparatus.

1. Pensky-Martens (closed cup type)
2. Abel
3. Cleveland (open cup type)
4. None of these

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85. Flash point of diesel/kerosene (>50°C) is determined by the

1. Abel apparatus
2. Pensky-Martens apparatus
3. Saybolt chromometer
4. None of these

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86. Flash point of motor gasoline may be around _________ °C.

1. 10
2. 45
3. 100
4. 150

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87. For gasoline, the flash point (<50°C) is determined by the

1. Abel apparatus
2. Pensky-Marten's apparatus
3. Saybolt chromometer
4. None of these

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88. Fuel oil is subjected to visbreaking to reduce its

1. Pour point
2. Viscosity
3. Pressure drop on pumping
4. All (A), (B) and (C)

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89. Furfural solvent extraction is used for upgrading (by dissolving aromatics)

1. Naphtha
2. Lubricating oils
3. Wax
4. Cracking feedstock

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90. Gasoline extracted from natural gas (by compression and cooling) is called the _________ gasoline.

1. Polymer
2. Unleaded
3. Casing head
4. Straight run

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