Petroleum Refinery Engineering MCQs
Practice free Petroleum Refinery Engineering multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 331 questions — no login required.
Question 181easy
Detergent is added as an additive in engine lubricating oil to
Question 182easy
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 ?
Question 183easy
For gasoline, the flash point (<50°C) is determined by the
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Question 184easy
During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.
Question 185easy
Both asphalt and wax are produced by __________ base crude oils.
Question 186easy
Which of the following is desirable in diesel and kerosene but is undersirable in gasoline?
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Question 187easy
Which is the most undesirable component in kerosene?
Question 188easy
Flash point of motor gasoline may be around __________ °C.
Question 189easy
Which of the following has the highest viscosity of all (at a given temperature)?