99 + Mcqs in SRMJEEE - 2018 in SRMJEEE Page 2 McqOptions

51.	The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.
A.	3
B.	300
C.	3000
D.	1000
Answer» B. 300

Discussion

52.	Catalyst used in isomerisation process is
A.	H2SO4
B.	H3PO4
C.	HF
D.	AlCl3
Answer» E.

Discussion

53.	Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.
A.	0.1 to 0.5
B.	1.5 to 4.5
C.	7.5 to 12.5
D.	15-20
Answer» C. 7.5 to 12.5

Discussion

54.	Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
A.	1
B.	20
C.	100
D.	500
Answer» C. 100

Discussion

55.	The order of preference for feedstock to a catalytic reformer is
A.	Catalytic naphtha - coking naphtha - virgin naphtha
B.	Coking naphtha - virgin naphtha - catalytic naphtha
C.	Virgin naphtha - catalytic naphtha - coking naphtha
D.	Virgin naphtha - coking naphtha - catalytic naphtha
Answer» C. Virgin naphtha - catalytic naphtha - coking naphtha

Discussion

56.	LPG stands for
A.	Liquid petroleum gas
B.	Liquefied petrol gas
C.	Liquid petrol gas
D.	Liquefied petroleum gas
Answer» E.

Discussion

57.	Deoiling of wax is done by its
A.	Heating
B.	Cooling
C.	Solvent extraction
D.	Both (B) & (C)
Answer» E.

Discussion

58.	Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).
A.	0.03
B.	3
C.	35
D.	70
Answer» C. 35

Discussion

59.	Which of the following processes is used for the production of petroleum coke?
A.	Stabilisation
B.	Visbreaking
C.	Cracking
D.	Reforming
Answer» D. Reforming

Discussion

60.	Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.
A.	Unsaturated hydrocarbon content
B.	Calorific value
C.	Quantity of propane
D.	Quantity of butane
Answer» C. Quantity of propane

Discussion

61.	Olefins are
A.	Saturated hydrocarbons
B.	Unsaturated cyclic compounds (hydrocarbons)
C.	Present in substantially good quantity in crude petroleum
D.	None of these
Answer» E.

Discussion

62.	Which of the following has the minimum °API gravity of all?
A.	Diesel
B.	Kerosene
C.	Petrol
D.	Furnace oil
Answer» E.

Discussion

63.	Feedstock for polymerisation is
A.	Naphtha
B.	Cracked gases rich in C2 & C4 olefins
C.	Low boiling aromatics
D.	None of these
Answer» C. Low boiling aromatics

Discussion

64.	Reforming converts
A.	Olefins into paraffins
B.	Naphthenes into aromatics
C.	Naphthenes into olefins
D.	Naphthenes into paraffin
Answer» C. Naphthenes into olefins

Discussion

65.	Octane number of gasoline produced by two stage fluidised catalytic cracking process is
A.	80
B.	87
C.	92
D.	97
Answer» E.

Discussion

66.	Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of
A.	Thermal cracking
B.	Gum formation
C.	Coking
D.	Discoloration
Answer» D. Discoloration

Discussion

67.	Which of the following is an additive used for improving the cetane number of diesel?
A.	Tetraethyl lead
B.	Tetramethyllead
C.	Ethyl nitrate or acetone
D.	None of these
Answer» B. Tetramethyllead

Discussion

68.	Pick out the wrong statement.
A.	A pale color of petroleum product indicates lower viscosity
B.	Color of petroleum products indicates the degree of refinement
C.	Lighter petroleum distillates are lighter in color than the heavier residual oils
D.	Fluorescence of oils helps to detect its adulteration
Answer» B. Color of petroleum products indicates the degree of refinement

Discussion

69.	Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil
A.	Gives higher yield of petrol
B.	Lower octane number of petrol
C.	Higher sulphur content in the product
D.	Higher gum forming material in petrol
Answer» B. Lower octane number of petrol

Discussion

70.	Which of the following reactions is undesirable in the production of catalytically reformed gasoline?
A.	Dehydrogenation of Naphthene
B.	Dehydrogenation of lower paraffins
C.	Dehydrocyclization of higher paraffins
D.	Isomerisation of paraffins
Answer» C. Dehydrocyclization of higher paraffins

Discussion

71.	Which of the following is the most widely used cracking process in oil refineries?
A.	Dubbs process
B.	T.C.C. moving bed process
C.	Fluidised bed catalytic cracking process
D.	Houdrys fixed bed process
Answer» D. Houdrys fixed bed process

Discussion

72.	The best method of determining sulphur in crude oil is by the __________ method.
A.	Kjeldahl
B.	Dumas
C.	Bomb calorimeter
D.	Junkers calorimeter
Answer» D. Junkers calorimeter

Discussion

73.	Presence of aromatics in
A.	Diesel increases its cetane number
B.	Kerosene increases its smoke point
C.	Petrol increases its octane number
D.	All (A), (B) and (C)
Answer» D. All (A), (B) and (C)

Discussion

74.	The most important property for a jet fuel is its
A.	Viscosity
B.	Freezing point
C.	Calorific value
D.	Flash point
Answer» C. Calorific value

Discussion

75.	The main aim of cracking is to produce
A.	Gasoline
B.	Lube oil
C.	Petrolatum
D.	Coke
Answer» B. Lube oil

Discussion

76.	High aniline point of a petrofuel (say diesel) indicates that
A.	It is highly aromatic in nature
B.	It is highly paraffinic in nature
C.	It has a very low diesel index
D.	Its ignition quality is very poor
Answer» C. It has a very low diesel index

Discussion

77.	Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to
A.	Increase its smoke point
B.	Improve its oxidation stability
C.	Decrease the breathing loss
D.	None of these
Answer» C. Decrease the breathing loss

Discussion

78.	Which of the following is not an important property of fuel oil/furnace oil?
A.	Sulphur content
B.	Viscosity
C.	Aniline point
D.	Flash point
Answer» D. Flash point

Discussion

79.	Visbreaking
A.	Uses natural gas as feed
B.	Is carried out at atmospheric pressure
C.	Produces fuel oil of lower viscosity
D.	Produces gasoline only
Answer» D. Produces gasoline only

Discussion

80.	Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).
A.	5-10
B.	30-80
C.	150-250
D.	350-400
Answer» C. 150-250

Discussion

81.	Flash point of an oil is determined by the
A.	Pensky Martens apparatus
B.	Ramsbottom apparatus
C.	Saybolt viscometer
D.	Conradson apparatus
Answer» B. Ramsbottom apparatus

Discussion

82.	The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mm Hg.
A.	1.2
B.	12
C.	120
D.	700
Answer» D. 700

Discussion

83.	Pick out the correct statement pertaining to catalytic cracking.
A.	With increase in the reactor pressure, octane number of gasoline decreases
B.	With increase in the reactor temperature, gasoline yield decreases for a given conversion
C.	Percentage conversion increases with increase in the catalyst to oil ratio
D.	All (A), (B) and (C)
Answer» E.

Discussion

84.	Liquefied Petroleum Gas (LPG) is mainly a mixture of
A.	Propane & butane
B.	Methane & ethane
C.	High boiling olefins
D.	High boiling naphthenes
Answer» B. Methane & ethane

Discussion

85.	Catalyst used in catalytic polymerisation which produces polymer gasoline is
A.	H2SO4
B.	H3PO4
C.	Both (A) and (B)
D.	AlCl3
Answer» D. AlCl3

Discussion

86.	Which of the following has the lowest cetane number?
A.	Aromatics
B.	i-paraffins
C.	Naphthene
D.	Olefins
Answer» B. i-paraffins

Discussion

87.	Hydrogen percentage (by weight) in crude petroleum may be about
A.	5
B.	15
C.	25
D.	35
Answer» C. 25

Discussion

88.	Flash point of a liquid petroleum fuel gives an idea about its
A.	Volatility
B.	Explosion hazards characteristics
C.	Nature of boiling point diagram
D.	All (A), (B) and (C)
Answer» E.

Discussion

89.	An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating.
A.	5
B.	15
C.	40
D.	60
Answer» D. 60

Discussion

90.	Pressure & temperature maintained in catalytic cracking is about
A.	2 atm & 500°C
B.	10 atm & 500°C
C.	30 atm & 200°C
D.	50 atm & 750°C
Answer» B. 10 atm & 500°C

Discussion

91.	Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C?
A.	Naphtha
B.	Petrol
C.	Kerosene
D.	Heavy fuel oil
Answer» E.

Discussion

92.	In catalytic cracking, the
A.	Gasoline obtained has a very low octane number
B.	Pressure & temperature is very high
C.	Gasoline obtained has very high aromatic content
D.	Gasoline obtained has very high amount of gum forming compounds
Answer» D. Gasoline obtained has very high amount of gum forming compounds

Discussion

93.	Solvent used for dewaxing of petroleum products are
A.	Furfural
B.	Methyl ethyl ketone (MEK)
C.	Propane
D.	Both (B) & (C)
Answer» D. Both (B) & (C)

Discussion

94.	Carbon percentage (by weight) in crude petroleum may be about
A.	65
B.	75
C.	85
D.	95
Answer» D. 95

Discussion

95.	The general formula of naphthenes is
A.	CnH2n + 2
B.	CnH2n-6 (where, n ≥ 6)
C.	CnHn-4
D.	Same as that for olefins i.e. CnH2n
Answer» C. CnHn-4

Discussion

96.	CnH2n is the general formula for
A.	Olefins
B.	Naphthenes
C.	Both (A) and (B)
D.	Neither (A) nor (B)
Answer» D. Neither (A) nor (B)

Discussion

97.	The first crude oil refinery of India is located at
A.	Naharkatiya
B.	Digboi
C.	Kochi
D.	Madras
Answer» C. Kochi

Discussion

98.	Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with
A.	Methyl alcohol
B.	Ethyl alcohol
C.	Methane
D.	Ethane
Answer» B. Ethyl alcohol

Discussion

99.	Which of the following has maximum hydrogen/carbon ratio (by weight)?
A.	Naphtha
B.	Gasoline
C.	Diesel
D.	Fuel oil
Answer» C. Diesel

Discussion

Explore topic-wise MCQs in Graduate Aptitude Test (GATE).

The amount of tetraethyl lead added to improve the octane number of motor gasoline is around __________ c.c per gallon of petrol.

Catalyst used in isomerisation process is

Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.

Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.

The order of preference for feedstock to a catalytic reformer is

LPG stands for

Deoiling of wax is done by its

Salt content (measured as sodium chloride) in electrically desalted crude oil comes down to a level of about __________ ptb (pounds per thousand barrel).

Which of the following processes is used for the production of petroleum coke?

Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.

Olefins are

Which of the following has the minimum &deg;API gravity of all?

Feedstock for polymerisation is

Reforming converts

Octane number of gasoline produced by two stage fluidised catalytic cracking process is

Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of

Which of the following is an additive used for improving the cetane number of diesel?

Pick out the wrong statement.

Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil

Which of the following reactions is undesirable in the production of catalytically reformed gasoline?

Which of the following is the most widely used cracking process in oil refineries?

The best method of determining sulphur in crude oil is by the __________ method.

Presence of aromatics in

The most important property for a jet fuel is its

The main aim of cracking is to produce

High aniline point of a petrofuel (say diesel) indicates that

Dearomatization of kerosene (by liquid sulphur dioxide extraction) is done to

Which of the following is not an important property of fuel oil/furnace oil?

Visbreaking

Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).

Flash point of an oil is determined by the

The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mm Hg.

Pick out the correct statement pertaining to catalytic cracking.

Liquefied Petroleum Gas (LPG) is mainly a mixture of

Catalyst used in catalytic polymerisation which produces polymer gasoline is

Which of the following has the lowest cetane number?

Hydrogen percentage (by weight) in crude petroleum may be about

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

An upper limit of oil content is limited to about __________ percent for achieving efficient and satisfactory level of wax sweating.

Pressure &amp; temperature maintained in catalytic cracking is about

Petroleum liquid fuels having flash point greater than 66&deg;C is considered as safe during storage and handling. Which of the following has flash point &gt; 66&deg;C?

In catalytic cracking, the

Solvent used for dewaxing of petroleum products are

Carbon percentage (by weight) in crude petroleum may be about

The general formula of naphthenes is

CnH2n is the general formula for

The first crude oil refinery of India is located at

Methyl tertiary butyl ether (MTBE), a high octane (octane no. = 115) gasoline blending component is produced by the simple additive reaction of isobutylene with

Which of the following has maximum hydrogen/carbon ratio (by weight)?

Which of the following has the minimum °API gravity of all?

Pressure & temperature maintained in catalytic cracking is about

Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C?