PETROLEUM REFINERY PROCESS: PSU EXAM QUESTIONS

DISCLAIMER

THE PETROLEUM REFINERY PROCESS: PSU EXAM QUESTIONS PROVIDED ON THIS WEBSITE ARE PUBLISHED FOR EDUCATIONAL AND INFORMATIONAL PURPOSES ONLY. WHILE EVERY EFFORT HAS BEEN MADE TO ENSURE THAT THE INFORMATION AND QUESTIONS ARE ACCURATE AND USEFUL FOR EXAM PREPARATION, THE WEBSITE OWNER DOES NOT GUARANTEE THE COMPLETENESS, ACCURACY OR RELIABILITY OF THE CONTENT.

SOME QUESTIONS MAY BE BASED ON PREVIOUS EXAM PATTERNS, REFERENCE MATERIALS, OR PRACTICE FORMATS, AND THEY MAY NOT EXACTLY MATCH THE QUESTIONS ASKED IN OFFICIAL EXAMINATIONS. THE WEBSITE OWNER, AUTHOR, OR PUBLISHER WILL NOT BE RESPONSIBLE FOR ANY ERRORS, OMISSIONS, OR OUTCOMES RELATED TO THE USE OF THIS INFORMATION.

USERS ARE ADVISED TO VERIFY INFORMATION FROM OFFICIAL SOURCES AND EXAMINATION AUTHORITIES BEFORE RELYING ON IT FOR PREPARATION OR DECISION-MAKING. BY USING THIS CONTENT, YOU AGREE THAT THE WEBSITE OWNER IS NOT LIABLE FOR ANY LOSS, DAMAGE, OR CONSEQUENCES ARISING FROM THE USE OF THESE QUESTIONS OR RELATED INFORMATION.

Q1.

WHICH PROCESS IS PRIMARILY USED TO SEPARATE CRUDE OIL INTO DIFFERENT FRACTIONS IN A REFINERY?
(A) CRACKING
(B) DISTILLATION
(C) POLYMERIZATION
(D) ALKYLATION

ANSWER: B
EXAM: IOCL TECHNICAL ASSISTANT EXAM, 2018

Q2.

WHICH FRACTION OBTAINED FROM CRUDE OIL IS USED FOR LPG PRODUCTION?
(A) LIGHT GASES
(B) NAPHTHA
(C) DIESEL FRACTION
(D) RESIDUE

ANSWER: A
EXAM: ONGC GRADUATE TRAINEE EXAM, 2019

Q3.

PETROL IS MAINLY OBTAINED FROM WHICH PETROLEUM FRACTION?
(A) GAS FRACTION
(B) NAPHTHA FRACTION
(C) RESIDUE FRACTION
(D) BITUMEN FRACTION

ANSWER: B
EXAM: HPCL ENGINEER EXAM, 2020

Q4.

THE MAIN COMPONENTS OF LPG ARE:
(A) METHANE AND ETHANE
(B) PROPANE AND BUTANE
(C) PENTANE AND HEXANE
(D) OCTANE AND NONANE

ANSWER: B
EXAM: GAIL ENGINEER EXAM, 2017

Q5.

DIESEL FUEL IS MAINLY OBTAINED FROM WHICH TEMPERATURE RANGE IN DISTILLATION?
(A) 40–100°C
(B) 150–200°C
(C) 250–350°C
(D) 400–500°C

ANSWER: C
EXAM: BPCL TECHNICIAN EXAM, 2019

Q6.

WHICH FUEL IS USED IN JET AIRCRAFT ENGINES?
(A) PETROL
(B) DIESEL
(C) ATF
(D) LPG

ANSWER: C
EXAM: ONGC ASSISTANT EXECUTIVE ENGINEER EXAM, 2021

Q7.

THE MAIN PURPOSE OF CATALYTIC CRACKING IS TO:
(A) REMOVE SULFUR
(B) BREAK LARGE HYDROCARBONS
(C) PRODUCE HYDROGEN
(D) REMOVE WATER

ANSWER: B
EXAM: IOCL ENGINEER EXAM, 2016

Q8.

WHICH PROCESS REMOVES SULFUR FROM PETROLEUM PRODUCTS?
(A) HYDROTREATING
(B) POLYMERIZATION
(C) REFORMING
(D) ALKYLATION

ANSWER: A
EXAM: HPCL MECHANICAL ENGINEER EXAM, 2018

Q9.

WHICH PRODUCT IS OBTAINED FROM THE HEAVIEST FRACTION OF CRUDE OIL?
(A) LPG
(B) PETROL
(C) DIESEL
(D) BITUMEN

ANSWER: D
EXAM: GAIL ENGINEER EXAM, 2017

Q10.

THE MAIN RAW MATERIAL FOR A PETROLEUM REFINERY IS:
(A) NATURAL GAS
(B) COAL
(C) CRUDE OIL
(D) DIESEL

ANSWER: C
EXAM: ONGC TECHNICIAN EXAM, 2020

Q11.

WHICH REFINERY PROCESS IMPROVES THE OCTANE NUMBER OF PETROL?
(A) CRACKING
(B) REFORMING
(C) DISTILLATION
(D) HYDROTREATING

ANSWER: B
EXAM: IOCL ENGINEER EXAM, 2019

Q12.

WHICH UNIT REMOVES SALTS FROM CRUDE OIL BEFORE REFINING?
(A) DEHYDRATOR
(B) DESALTER
(C) HYDROTREATER
(D) DISTILLATION UNIT

ANSWER: B
EXAM: BPCL ENGINEER EXAM, 2018

Q13.

WHICH PRODUCT IS USED AS COOKING GAS IN HOMES?
(A) DIESEL
(B) LPG
(C) PETROL
(D) KEROSENE

ANSWER: B
EXAM: HPCL TECHNICIAN EXAM, 2017

Q14.

ATF STANDS FOR:
(A) AVIATION TURBINE FUEL
(B) AUTOMOTIVE TURBO FUEL
(C) AIR TRANSPORT FUEL
(D) ADVANCED TURBINE FUEL

ANSWER: A
EXAM: ONGC ENGINEER EXAM, 2019

Q15.

THE PROCESS OF BREAKING HEAVY HYDROCARBONS USING HYDROGEN IS CALLED:
(A) THERMAL CRACKING
(B) HYDROCRACKING
(C) REFORMING
(D) POLYMERIZATION

ANSWER: B
EXAM: IOCL TECHNICAL ASSISTANT EXAM, 2020

Q16.

GREASE IS PRODUCED BY MIXING LUBRICATING OIL WITH:
(A) ALCOHOL
(B) SOAP THICKENER
(C) WATER
(D) HYDROGEN

ANSWER: B
EXAM: GAIL ENGINEER EXAM, 2018

Q17.

WHICH REFINERY UNIT OPERATES UNDER VACUUM PRESSURE?
(A) ATMOSPHERIC DISTILLATION
(B) VACUUM DISTILLATION
(C) CATALYTIC CRACKING
(D) HYDROTREATING

ANSWER: B
EXAM: ONGC GT EXAM, 2021

Q18.

LUBRICATING OILS ARE MAINLY OBTAINED FROM:
(A) LIGHT FRACTIONS
(B) MIDDLE FRACTIONS
(C) HEAVY FRACTIONS
(D) GAS FRACTIONS

ANSWER: C
EXAM: BPCL MECHANICAL EXAM, 2019

Q19.

WHICH PROCESS REMOVES WAX FROM LUBRICATING OIL?
(A) DEWAXING
(B) CRACKING
(C) REFORMING
(D) ALKYLATION

ANSWER: A
EXAM: IOCL ENGINEER EXAM, 2017

Q20.

THE TALL COLUMN USED IN CRUDE OIL SEPARATION IS CALLED:
(A) REACTOR
(B) FRACTIONATING COLUMN
(C) ABSORBER
(D) SCRUBBER

ANSWER: B
EXAM: HPCL ENGINEER EXAM, 2020

Q21.

WHICH PETROLEUM PRODUCT HAS THE HIGHEST BOILING POINT?
(A) LPG
(B) PETROL
(C) DIESEL
(D) BITUMEN

ANSWER: D
EXAM: ONGC TECHNICIAN EXAM, 2018

Q22.

WHICH PROCESS IMPROVES THE STABILITY OF LUBRICATING OIL?
(A) HYDROFINISHING
(B) CRACKING
(C) DISTILLATION
(D) POLYMERIZATION

ANSWER: A
EXAM: IOCL ENGINEER EXAM, 2019

Q23.

WHICH FRACTION IS USED TO PRODUCE KEROSENE AND ATF?
(A) GAS FRACTION
(B) NAPHTHA FRACTION
(C) MIDDLE DISTILLATE FRACTION
(D) RESIDUE

ANSWER: C
EXAM: HPCL ENGINEER EXAM, 2018

Q24.

THE PRIMARY PURPOSE OF BLENDING IN REFINERIES IS TO:
(A) REMOVE IMPURITIES
(B) IMPROVE FUEL QUALITY
(C) PRODUCE HYDROGEN
(D) SEPARATE FRACTIONS

ANSWER: B
EXAM: BPCL ENGINEER EXAM, 2017

Q25.

THE BOILING POINT OF LPG COMPONENTS IS GENERALLY:
(A) BELOW 40°C
(B) 100–200°C
(C) 250–300°C
(D) ABOVE 400°C

ANSWER: A
EXAM: GAIL ENGINEER EXAM, 2020

QUESTIONS 26–50 (CONDENSED)

  • WHICH REFINERY PROCESS PRODUCES HIGH-OCTANE GASOLINE?
    ANSWER: CATALYTIC REFORMING
    EXAM: IOCL 2018
  1. WHICH FUEL IS USED IN DIESEL ENGINES?
    ANSWER: DIESEL
    EXAM: ONGC 2017
  2. THE MAIN PURPOSE OF DESALTING CRUDE OIL IS TO REMOVE:
    ANSWER: SALTS AND WATER
    EXAM: BPCL 2019
  3. WHICH FUEL HAS THE HIGHEST VOLATILITY?
    ANSWER: PETROL
    EXAM: HPCL 2018
  4. THE RESIDUE FROM CRUDE OIL DISTILLATION IS USED TO MAKE:
    ANSWER: BITUMEN
    EXAM: IOCL 2017
  5. THE CRACKING PROCESS INCREASES THE YIELD OF:
    ANSWER: PETROL
    EXAM: ONGC 2019
  6. WHICH PRODUCT IS USED AS JET FUEL?
    ANSWER: ATF
    EXAM: HPCL 2020
  7. THE UNIT USED FOR SULFUR RECOVERY IS:
    ANSWER: CLAUS UNIT
    EXAM: BPCL 2021
  8. WHICH REFINERY PROCESS USES A CATALYST?
    ANSWER: CATALYTIC CRACKING
    EXAM: IOCL 2018
  9. THE BOILING RANGE OF PETROL IS APPROXIMATELY:
    ANSWER: 40–200°C
    EXAM: ONGC 2017
  10. WHICH REFINERY PRODUCT IS SEMI-SOLID?
    ANSWER: GREASE
    EXAM: GAIL 2019
  11. DIESEL ENGINES WORK ON WHICH PRINCIPLE?
    ANSWER: COMPRESSION IGNITION
    EXAM: HPCL 2018
  12. THE MAIN COMPONENT OF LUBRICATING OIL IS:
    ANSWER: BASE OIL
    EXAM: BPCL 2020
  13. LPG IS STORED IN:
    ANSWER: CYLINDERS UNDER PRESSURE
    EXAM: IOCL 2016
  14. THE PROCESS THAT REMOVES NITROGEN COMPOUNDS IS:
    ANSWER: HYDROTREATING
    EXAM: ONGC 2019
  15. THE REFINERY PROCESS USED TO INCREASE GASOLINE YIELD IS:
    ANSWER: CRACKING
    EXAM: HPCL 2021
  16. WHICH PRODUCT HAS THE LOWEST BOILING POINT?
    ANSWER: LPG
    EXAM: BPCL 2018
  17. WHICH REFINERY UNIT IMPROVES DIESEL QUALITY?
    ANSWER: HYDROTREATER
    EXAM: IOCL 2017
  18. WHICH PRODUCT IS USED IN LUBRICATION?
    ANSWER: LUBRICATING OIL
    EXAM: GAIL 2020
  19. WHICH PETROLEUM PRODUCT IS USED FOR ROAD CONSTRUCTION?
    ANSWER: BITUMEN
    EXAM: ONGC 2018
  20. WHICH GAS IS USED IN HYDROTREATING?
    ANSWER: HYDROGEN
    EXAM: HPCL 2019
  21. WHICH PROCESS SEPARATES CRUDE OIL FRACTIONS?
    ANSWER: FRACTIONAL DISTILLATION
    EXAM: IOCL 2017
  22. THE REFINING INDUSTRY MAINLY CONVERTS CRUDE OIL INTO:
    ANSWER: FUELS AND LUBRICANTS
    EXAM: BPCL 2020
  23. WHICH PETROLEUM PRODUCT IS MOST VOLATILE?
    ANSWER: LPG
    EXAM: ONGC 2021
  24. WHICH PROCESS REMOVES WAX FROM BASE OIL?
    ANSWER: DEWAXING
    EXAM: GAIL 2018

Q51.

WHICH PROCESS CONVERTS LOW-OCTANE HYDROCARBONS INTO HIGH-OCTANE COMPOUNDS?
(A) CRACKING
(B) REFORMING
(C) DISTILLATION
(D) HYDROTREATING

ANSWER: B
EXAM: IOCL ENGINEER EXAM, 2018

Q52.

WHICH PETROLEUM PRODUCT IS COMMONLY USED AS AUTOMOBILE FUEL?
(A) PETROL
(B) BITUMEN
(C) GREASE
(D) WAX

ANSWER: A
EXAM: HPCL ENGINEER EXAM, 2019

Q53.

WHICH REFINERY PROCESS USES A CATALYST AND HIGH TEMPERATURE TO BREAK HEAVY MOLECULES?
(A) CATALYTIC CRACKING
(B) DEWAXING
(C) HYDROTREATING
(D) POLYMERIZATION

ANSWER: A
EXAM: BPCL ENGINEER EXAM, 2020

Q54.

WHICH FUEL IS USED IN GAS STOVES AT HOME?
(A) DIESEL
(B) LPG
(C) PETROL
(D) ATF

ANSWER: B
EXAM: ONGC TECHNICIAN EXAM, 2018

Q55.

WHICH PRODUCT IS MAINLY OBTAINED FROM VACUUM DISTILLATION?
(A) PETROL
(B) LPG
(C) LUBRICATING OIL
(D) NAPHTHA

ANSWER: C
EXAM: IOCL TECHNICAL ASSISTANT EXAM, 2019

Q56.

THE MAIN PURPOSE OF HYDROTREATING IS TO:
(A) INCREASE VISCOSITY
(B) REMOVE SULFUR AND IMPURITIES
(C) PRODUCE HYDROGEN
(D) INCREASE BOILING POINT

ANSWER: B
EXAM: HPCL ENGINEER EXAM, 2017

Q57.

WHICH REFINERY PROCESS REMOVES WAX FROM LUBRICATING OIL?
(A) DEWAXING
(B) REFORMING
(C) CRACKING
(D) POLYMERIZATION

ANSWER: A
EXAM: BPCL ENGINEER EXAM, 2018

Q58.

WHICH PRODUCT IS PRODUCED FROM PROPANE AND BUTANE MIXTURE?
(A) PETROL
(B) LPG
(C) DIESEL
(D) GREASE

ANSWER: B
EXAM: GAIL ENGINEER EXAM, 2019

Q59.

THE FRACTIONATING COLUMN SEPARATES CRUDE OIL BASED ON:
(A) DENSITY
(B) VISCOSITY
(C) BOILING POINT
(D) COLOR

ANSWER: C
EXAM: ONGC GRADUATE TRAINEE EXAM, 2021

Q60.

WHICH PETROLEUM PRODUCT IS USED AS JET ENGINE FUEL?
(A) PETROL
(B) ATF
(C) DIESEL
(D) LPG

ANSWER: B
EXAM: IOCL ENGINEER EXAM, 2017

QUESTIONS 61–70

Q61.

WHICH REFINERY PRODUCT IS SEMI-SOLID IN NATURE?
(A) DIESEL
(B) GREASE
(C) PETROL
(D) LPG

ANSWER: B
EXAM: HPCL ENGINEER EXAM, 2020

Q62.

THE MAIN RAW MATERIAL USED IN REFINERIES IS:
(A) COAL
(B) NATURAL GAS
(C) CRUDE OIL
(D) DIESEL

ANSWER: C
EXAM: BPCL TECHNICIAN EXAM, 2018

Q63.

WHICH PROCESS INCREASES PETROL PRODUCTION FROM HEAVY OIL?
(A) CRACKING
(B) DEWAXING
(C) BLENDING
(D) DISTILLATION

ANSWER: A
EXAM: ONGC ENGINEER EXAM, 2019

Q64.

WHICH PETROLEUM PRODUCT IS USED FOR ROAD CONSTRUCTION?
(A) BITUMEN
(B) PETROL
(C) DIESEL
(D) LPG

ANSWER: A
EXAM: IOCL ENGINEER EXAM, 2016

Q65.

WHICH REFINERY UNIT OPERATES UNDER REDUCED PRESSURE?
(A) ATMOSPHERIC DISTILLATION UNIT
(B) VACUUM DISTILLATION UNIT
(C) CRACKING UNIT
(D) REFORMING UNIT

ANSWER: B
EXAM: HPCL MECHANICAL EXAM, 2019

Q66.

WHICH PRODUCT IS MAINLY USED FOR LUBRICATION OF MACHINES?
(A) PETROL
(B) DIESEL
(C) LUBRICATING OIL
(D) LPG

ANSWER: C
EXAM: GAIL ENGINEER EXAM, 2018

Q67.

WHICH REFINERY PROCESS IMPROVES FUEL STABILITY AND COLOR?
(A) HYDROFINISHING
(B) CRACKING
(C) DISTILLATION
(D) POLYMERIZATION

ANSWER: A
EXAM: IOCL ENGINEER EXAM, 2019

Q68.

WHICH GAS IS USED IN HYDROTREATING PROCESS?
(A) OXYGEN
(B) HYDROGEN
(C) NITROGEN
(D) CARBON DIOXIDE

ANSWER: B
EXAM: ONGC ENGINEER EXAM, 2017

Q69.

WHICH REFINERY PRODUCT HAS THE LOWEST BOILING POINT?
(A) LPG
(B) DIESEL
(C) LUBRICATING OIL
(D) BITUMEN

ANSWER: A
EXAM: BPCL ENGINEER EXAM, 2021

Q70.

WHICH PROCESS COMBINES DIFFERENT FUEL COMPONENTS TO OBTAIN FINAL PRODUCT SPECIFICATIONS?
(A) BLENDING
(B) CRACKING
(C) DISTILLATION
(D) REFORMING

ANSWER: A
EXAM: HPCL ENGINEER EXAM, 2020

  1. THE BOILING RANGE OF KEROSENE IS APPROXIMATELY:
    ANSWER: 150–275°C
    EXAM: IOCL 2018
  2. THE MAIN PURPOSE OF CATALYTIC REFORMING IS:
    ANSWER: INCREASE OCTANE NUMBER
    EXAM: ONGC 2019
  3. LPG MAINLY CONSISTS OF:
    ANSWER: PROPANE AND BUTANE
    EXAM: HPCL 2017
  4. WHICH PRODUCT IS USED IN AIRCRAFT TURBINES?
    ANSWER: ATF
    EXAM: BPCL 2018
  5. WHICH PETROLEUM PRODUCT HAS THE HIGHEST VISCOSITY?
    ANSWER: LUBRICATING OIL
    EXAM: GAIL 2019
  6. DIESEL ENGINES OPERATE ON WHICH CYCLE?
    ANSWER: DIESEL CYCLE
    EXAM: ONGC 2020
  7. WHICH REFINERY PROCESS REMOVES AROMATIC IMPURITIES?
    ANSWER: SOLVENT EXTRACTION
    EXAM: IOCL 2018
  8. WHICH REFINERY PRODUCT IS USED AS COOKING GAS?
    ANSWER: LPG
    EXAM: HPCL 2019
  9. WHICH PRODUCT IS OBTAINED FROM NAPHTHA FRACTION?
    ANSWER: PETROL
    EXAM: BPCL 2021
  10. WHICH REFINERY PROCESS USES CATALYSTS AND HYDROGEN?
    ANSWER: HYDROCRACKING
    EXAM: GAIL 2017
  1. WHICH PETROLEUM PRODUCT IS USED FOR LUBRICATION?
    ANSWER: LUBRICATING OIL
    EXAM: IOCL 2019
  2. WHICH REFINERY UNIT REMOVES SALT FROM CRUDE OIL?
    ANSWER: DESALTER
    EXAM: ONGC 2018
  3. WHICH PETROLEUM PRODUCT IS MOST VOLATILE?
    ANSWER: LPG
    EXAM: HPCL 2020
  4. WHICH REFINERY PROCESS BREAKS HEAVY HYDROCARBONS?
    ANSWER: CRACKING
    EXAM: BPCL 2019
  5. THE RESIDUE FROM CRUDE OIL DISTILLATION FORMS:
    ANSWER: BITUMEN
    EXAM: IOCL 2017
  6. WHICH FUEL IS USED IN COMPRESSION IGNITION ENGINES?
    ANSWER: DIESEL
    EXAM: ONGC 2018
  7. WHICH PROCESS IMPROVES GASOLINE QUALITY?
    ANSWER: REFORMING
    EXAM: HPCL 2019
  8. WHICH REFINERY PRODUCT IS USED IN BEARINGS?
    ANSWER: GREASE
    EXAM: BPCL 2020
  9. WHICH PROCESS REMOVES NITROGEN COMPOUNDS?
    ANSWER: HYDROTREATING
    EXAM: GAIL 2018
  10. WHICH PETROLEUM PRODUCT IS USED IN GENERATORS?
    ANSWER: DIESEL
    EXAM: IOCL 2021
  11. THE LIGHTEST PETROLEUM PRODUCT IS:
    ANSWER: LPG
    EXAM: ONGC 2017
  12. THE PROCESS OF REMOVING WAX FROM OIL IS CALLED:
    ANSWER: DEWAXING
    EXAM: HPCL 2018
  13. THE MAJOR REFINERY PRODUCT USED IN AUTOMOBILES IS:
    ANSWER: PETROL
    EXAM: BPCL 2021
  14. WHICH REFINERY PROCESS IMPROVES VISCOSITY INDEX?
    ANSWER: SOLVENT EXTRACTION
    EXAM: GAIL 2019
  15. THE FRACTION USED FOR AVIATION FUEL IS:
    ANSWER: KEROSENE FRACTION
    EXAM: IOCL 2017
  16. WHICH REFINERY PROCESS PRODUCES ADDITIONAL GASOLINE?
    ANSWER: CATALYTIC CRACKING
    EXAM: ONGC 2018
  17. WHICH PRODUCT IS USED IN INDUSTRIAL MACHINERY LUBRICATION?
    ANSWER: LUBRICATING OIL
    EXAM: HPCL 2020
  18. THE BOILING RANGE OF DIESEL IS APPROXIMATELY:
    ANSWER: 250–350°C
    EXAM: BPCL 2019
  19. WHICH PETROLEUM PRODUCT IS SEMI-SOLID LUBRICANT?
    ANSWER: GREASE
    EXAM: GAIL 2018
  20. THE MAIN PURPOSE OF REFINING CRUDE OIL IS:
    ANSWER: PRODUCE FUELS AND LUBRICANTS
    EXAM: IOCL 2021

Q101. WHICH REFINERY PROCESS CONVERTS HEAVY OIL INTO LIGHTER HYDROCARBONS?
ANSWER: CRACKING
EXAM: IOCL ENGINEER EXAM, 2019

Q102. WHICH PETROLEUM PRODUCT IS MAINLY USED AS AVIATION FUEL?
ANSWER: ATF
EXAM: ONGC GRADUATE TRAINEE EXAM, 2020

Q103. THE PRIMARY PURPOSE OF VACUUM DISTILLATION IS TO:
ANSWER: SEPARATE HEAVY FRACTIONS AT LOWER TEMPERATURES
EXAM: HPCL ENGINEER EXAM, 2018

Q104. LPG IS STORED IN LIQUID FORM UNDER:
ANSWER: HIGH PRESSURE
EXAM: BPCL TECHNICIAN EXAM, 2019

Q105. THE MAIN COMPONENT OF GREASE IS:
ANSWER: LUBRICATING OIL AND SOAP THICKENER
EXAM: GAIL ENGINEER EXAM, 2017

Q106. WHICH PETROLEUM FRACTION IS USED FOR PRODUCING PETROL?
ANSWER: NAPHTHA
EXAM: IOCL TECHNICAL ASSISTANT EXAM, 2018

Q107. WHICH PROCESS INCREASES GASOLINE YIELD FROM CRUDE OIL?
ANSWER: CATALYTIC CRACKING
EXAM: ONGC ENGINEER EXAM, 2021

Q108. WHICH PRODUCT IS OBTAINED FROM KEROSENE FRACTION?
ANSWER: ATF
EXAM: HPCL ENGINEER EXAM, 2020

Q109. WHICH PETROLEUM PRODUCT HAS THE HIGHEST BOILING POINT?
ANSWER: BITUMEN
EXAM: BPCL ENGINEER EXAM, 2017

Q110. THE MAIN PURPOSE OF BLENDING FUELS IS TO:
ANSWER: ACHIEVE DESIRED FUEL SPECIFICATIONS
EXAM: IOCL ENGINEER EXAM, 2019

Q111. WHICH PROCESS REMOVES SULFUR COMPOUNDS FROM FUELS?
ANSWER: HYDROTREATING
EXAM: ONGC ENGINEER EXAM, 2018

Q112. WHICH PETROLEUM PRODUCT IS USED AS COOKING GAS?
ANSWER: LPG
EXAM: HPCL TECHNICIAN EXAM, 2019

Q113. WHICH PROCESS IMPROVES OCTANE RATING OF PETROL?
ANSWER: CATALYTIC REFORMING
EXAM: BPCL ENGINEER EXAM, 2020

Q114. THE TALLEST EQUIPMENT IN A REFINERY IS USUALLY THE:
ANSWER: FRACTIONATING COLUMN
EXAM: IOCL ENGINEER EXAM, 2017

Q115. WHICH PETROLEUM PRODUCT IS USED IN DIESEL ENGINES?
ANSWER: DIESEL
EXAM: ONGC TECHNICIAN EXAM, 2018

Q116. WHICH REFINERY PROCESS REMOVES WAX FROM LUBRICATING OIL?
ANSWER: DEWAXING
EXAM: HPCL ENGINEER EXAM, 2019

Q117. WHICH PRODUCT IS USED FOR LUBRICATION OF INDUSTRIAL MACHINES?
ANSWER: LUBRICATING OIL
EXAM: BPCL ENGINEER EXAM, 2018

Q118. WHICH REFINERY UNIT REMOVES SALT AND WATER FROM CRUDE OIL?
ANSWER: DESALTER
EXAM: IOCL TECHNICAL EXAM, 2019

Q119. WHICH PETROLEUM PRODUCT IS SEMI-SOLID IN NATURE?
ANSWER: GREASE
EXAM: GAIL ENGINEER EXAM, 2017

Q120. THE PROCESS OF CONVERTING HEAVY HYDROCARBONS INTO LIGHTER PRODUCTS IS:
ANSWER: CRACKING
EXAM: ONGC ENGINEER EXAM, 2020

  1. WHICH FUEL IS USED IN JET AIRCRAFT ENGINES?
    ANSWER: ATF
    EXAM: HPCL 2020
  2. LPG MAINLY CONTAINS:
    ANSWER: PROPANE AND BUTANE
    EXAM: BPCL 2019
  3. WHICH PETROLEUM PRODUCT HAS THE LOWEST BOILING POINT?
    ANSWER: LPG
    EXAM: IOCL 2017
  4. DIESEL ENGINES OPERATE ON WHICH IGNITION PRINCIPLE?
    ANSWER: COMPRESSION IGNITION
    EXAM: ONGC 2018
  5. THE BOILING RANGE OF PETROL IS APPROXIMATELY:
    ANSWER: 40–200°C
    EXAM: HPCL 2019
  6. WHICH PROCESS REMOVES AROMATIC IMPURITIES FROM OIL?
    ANSWER: SOLVENT EXTRACTION
    EXAM: BPCL 2018
  7. THE MAIN RAW MATERIAL IN PETROLEUM REFINERIES IS:
    ANSWER: CRUDE OIL
    EXAM: IOCL 2020
  8. WHICH REFINERY PROCESS PRODUCES HYDROGEN AS A BY-PRODUCT?
    ANSWER: CATALYTIC REFORMING
    EXAM: ONGC 2017
  9. WHICH PETROLEUM PRODUCT IS USED FOR ROAD SURFACING?
    ANSWER: BITUMEN
    EXAM: HPCL 2019
  10. WHICH PROCESS IMPROVES FUEL STABILITY?
    ANSWER: HYDROFINISHING
    EXAM: BPCL 2020
  11. WHICH PETROLEUM FRACTION IS USED FOR KEROSENE PRODUCTION?
    ANSWER: MIDDLE DISTILLATE FRACTION
    EXAM: IOCL 2018
  12. WHICH REFINERY PROCESS USES HYDROGEN GAS?
    ANSWER: HYDROCRACKING
    EXAM: ONGC 2019
  13. WHICH PETROLEUM PRODUCT IS USED AS AUTOMOTIVE FUEL?
    ANSWER: PETROL
    EXAM: HPCL 2020
  14. WHICH REFINERY PRODUCT IS THICK LUBRICANT USED IN BEARINGS?
    ANSWER: GREASE
    EXAM: BPCL 2018
  15. THE RESIDUE FROM VACUUM DISTILLATION IS MAINLY USED FOR:
    ANSWER: BITUMEN PRODUCTION
    EXAM: IOCL 2017
  16. WHICH PETROLEUM PRODUCT IS MOST VOLATILE?
    ANSWER: LPG
    EXAM: ONGC 2021
  17. THE PROCESS OF SEPARATING CRUDE OIL FRACTIONS IS CALLED:
    ANSWER: FRACTIONAL DISTILLATION
    EXAM: HPCL 2018
  18. WHICH REFINERY PROCESS IMPROVES DIESEL QUALITY?
    ANSWER: HYDROTREATING
    EXAM: BPCL 2020
  19. WHICH PETROLEUM PRODUCT IS USED IN GENERATORS?
    ANSWER: DIESEL
    EXAM: IOCL 2019
  20. WHICH PRODUCT IS PRODUCED FROM HEAVY OIL FRACTIONS?
    ANSWER: LUBRICATING OIL
    EXAM: ONGC 2018
  1. WHICH REFINERY UNIT INCREASES PETROL PRODUCTION?
    ANSWER: CATALYTIC CRACKING
    EXAM: HPCL 2019
  2. LPG IS MAINLY USED FOR:
    ANSWER: DOMESTIC COOKING FUEL
    EXAM: BPCL 2017
  3. THE PROCESS OF COMBINING FUEL COMPONENTS IS CALLED:
    ANSWER: BLENDING
    EXAM: IOCL 2020
  4. WHICH PETROLEUM PRODUCT IS USED IN AUTOMOBILES?
    ANSWER: PETROL
    EXAM: ONGC 2018
  5. WHICH REFINERY PROCESS REMOVES NITROGEN COMPOUNDS?
    ANSWER: HYDROTREATING
    EXAM: HPCL 2019
  6. WHICH PETROLEUM PRODUCT IS USED IN LUBRICATION OF ENGINES?
    ANSWER: LUBRICATING OIL
    EXAM: BPCL 2020
  7. WHICH PETROLEUM PRODUCT HAS HIGH VISCOSITY?
    ANSWER: LUBRICATING OIL
    EXAM: IOCL 2017
  8. WHICH REFINERY PROCESS USES CATALYSTS?
    ANSWER: CATALYTIC CRACKING
    EXAM: ONGC 2019
  9. WHICH PETROLEUM PRODUCT IS USED IN AIRCRAFT ENGINES?
    ANSWER: ATF
    EXAM: HPCL 2021
  10. WHICH PETROLEUM PRODUCT IS PRODUCED FROM PROPANE AND BUTANE?
    ANSWER: LPG
    EXAM: BPCL 2018
  1. WHICH PETROLEUM PRODUCT IS USED FOR HEATING AND LIGHTING?
    ANSWER: KEROSENE
    EXAM: IOCL 2019
  2. WHICH REFINERY PROCESS PRODUCES GASOLINE FROM HEAVY OIL?
    ANSWER: CRACKING
    EXAM: ONGC 2017
  3. WHICH REFINERY PROCESS REMOVES WAX?
    ANSWER: DEWAXING
    EXAM: HPCL 2018
  4. WHICH PETROLEUM PRODUCT IS USED IN TRACTORS?
    ANSWER: DIESEL
    EXAM: BPCL 2020
  5. WHICH REFINERY PROCESS INCREASES OCTANE NUMBER?
    ANSWER: REFORMING
    EXAM: IOCL 2018
  6. WHICH PRODUCT IS PRODUCED FROM KEROSENE FRACTION?
    ANSWER: ATF
    EXAM: ONGC 2020
  7. WHICH PETROLEUM PRODUCT IS SEMI-SOLID LUBRICANT?
    ANSWER: GREASE
    EXAM: HPCL 2017
  8. WHICH REFINERY PROCESS REMOVES SULFUR?
    ANSWER: HYDROTREATING
    EXAM: BPCL 2019
  9. WHICH PETROLEUM PRODUCT HAS THE HIGHEST BOILING POINT?
    ANSWER: BITUMEN
    EXAM: IOCL 2018
  10. WHICH PETROLEUM PRODUCT IS USED IN DIESEL ENGINES?
    ANSWER: DIESEL
    EXAM: ONGC 2017
  11. WHICH PETROLEUM PRODUCT IS MOST VOLATILE?
    ANSWER: LPG
    EXAM: HPCL 2019
  12. WHICH REFINERY PROCESS SEPARATES CRUDE OIL COMPONENTS?
    ANSWER: FRACTIONAL DISTILLATION
    EXAM: BPCL 2018
  13. WHICH REFINERY PROCESS USES HYDROGEN AND CATALYST?
    ANSWER: HYDROCRACKING
    EXAM: IOCL 2020
  14. WHICH PETROLEUM PRODUCT LUBRICATES MACHINERY?
    ANSWER: LUBRICATING OIL
    EXAM: ONGC 2019
  15. WHICH PETROLEUM PRODUCT IS USED FOR ROAD CONSTRUCTION?
    ANSWER: BITUMEN
    EXAM: HPCL 2017
  16. WHICH PETROLEUM PRODUCT IS USED IN JET ENGINES?
    ANSWER: ATF
    EXAM: BPCL 2021
  17. WHICH PETROLEUM PRODUCT IS PRODUCED FROM NAPHTHA FRACTION?
    ANSWER: PETROL
    EXAM: IOCL 2018
  18. WHICH REFINERY PROCESS REMOVES IMPURITIES FROM FUEL?
    ANSWER: HYDROTREATING
    EXAM: ONGC 2019
  19. WHICH REFINERY PROCESS INCREASES GASOLINE YIELD?
    ANSWER: CATALYTIC CRACKING
    EXAM: HPCL 2020
  20. WHICH PETROLEUM PRODUCT IS USED AS COOKING GAS?
    ANSWER: LPG
    EXAM: BPCL 2018
  1. WHICH PETROLEUM PRODUCT LUBRICATES BEARINGS?
    ANSWER: GREASE
    EXAM: IOCL 2019
  2. WHICH PETROLEUM FRACTION PRODUCES DIESEL?
    ANSWER: MIDDLE DISTILLATE FRACTION
    EXAM: ONGC 2018
  3. WHICH REFINERY PROCESS IMPROVES FUEL STABILITY?
    ANSWER: HYDROFINISHING
    EXAM: HPCL 2019
  4. WHICH PETROLEUM PRODUCT POWERS GENERATORS?
    ANSWER: DIESEL
    EXAM: BPCL 2020
  5. WHICH REFINERY PROCESS REMOVES SALTS FROM CRUDE OIL?
    ANSWER: DESALTING
    EXAM: IOCL 2017
  6. WHICH PETROLEUM PRODUCT HAS LOWEST BOILING POINT?
    ANSWER: LPG
    EXAM: ONGC 2019
  7. WHICH REFINERY PRODUCT IS THICK LUBRICANT?
    ANSWER: GREASE
    EXAM: HPCL 2018
  8. WHICH REFINERY PROCESS IMPROVES PETROL QUALITY?
    ANSWER: REFORMING
    EXAM: BPCL 2021
  9. WHICH PETROLEUM PRODUCT IS USED IN AVIATION TURBINES?
    ANSWER: ATF
    EXAM: IOCL 2020
  10. WHICH PETROLEUM PRODUCT IS OBTAINED FROM HEAVY OIL FRACTION?
    ANSWER: LUBRICATING OIL
    EXAM: ONGC 2017
  11. WHICH REFINERY PROCESS BREAKS HEAVY MOLECULES?
    ANSWER: CRACKING
    EXAM: HPCL 2019
  12. WHICH PETROLEUM PRODUCT FUELS CARS?
    ANSWER: PETROL
    EXAM: BPCL 2018
  13. WHICH REFINERY PROCESS REMOVES WAX FROM BASE OIL?
    ANSWER: DEWAXING
    EXAM: IOCL 2019
  14. WHICH PETROLEUM PRODUCT IS USED FOR INDUSTRIAL LUBRICATION?
    ANSWER: LUBRICATING OIL
    EXAM: ONGC 2021
  15. WHICH REFINERY PROCESS USES CATALYSTS TO BREAK HYDROCARBONS?
    ANSWER: CATALYTIC CRACKING
    EXAM: HPCL 2020
  16. WHICH PETROLEUM PRODUCT IS USED AS HOUSEHOLD FUEL?
    ANSWER: LPG
    EXAM: BPCL 2017
  17. WHICH PETROLEUM PRODUCT IS USED FOR ROAD ASPHALT?
    ANSWER: BITUMEN
    EXAM: IOCL 2018
  18. WHICH REFINERY PROCESS REMOVES SULFUR IMPURITIES?
    ANSWER: HYDROTREATING
    EXAM: ONGC 2019
  19. WHICH PETROLEUM PRODUCT POWERS TRUCKS?
    ANSWER: DIESEL
    EXAM: HPCL 2020
  20. THE MAIN GOAL OF PETROLEUM REFINING IS TO PRODUCE:
    ANSWER: FUELS AND LUBRICANTS
    EXAM: BPCL 2021

Leave a Reply

Your email address will not be published. Required fields are marked *