UPSC CSE Prelims
Question 97
With reference to furnace oil, consider the following statements:
- It is a product of oil refineries.
- Some industries use it to generate power.
- Its use causes sulphur emissions into environment.
Which of the statements given above are correct?
View correct answer and explanation
Correct answer: D
Correct Option: D (1, 2 and 3)
Explanation: Furnace oil is a heavy residual refinery product used in boilers, industry and some power plants. Its sulphur content can generate SO2 emissions on burning.
Statement / Pair / Item-wise Analysis:
1. Correct / qualifies - Furnace oil is produced as a residual fraction in petroleum refining.
2. Correct / qualifies - Industrial installations may burn furnace oil for heat or power generation.
3. Correct / qualifies - Combustion of sulphur-containing fuel produces sulphur-oxide pollution.
Option-wise Analysis:
A. Incorrect-omits valid item 3 (Combustion of sulphur-containing fuel produces sulphur-oxide pollution).
B. Incorrect-omits valid item 1 (Furnace oil is produced as a residual fraction in petroleum refining).
C. Incorrect-omits valid item 2 (Industrial installations may burn furnace oil for heat or power generation).
D. Correct-selects exactly the supported statements/items: 1, 2, 3.