Which of the following grade of petroleum is being made available by the Indian government since April 1, 2017 for the prevention of vehicle – borne air pollution:
A. BS – 2
B. BS – 3
C. BS – 4
D. BS – 5
Answer:C
Which of the following grade of petroleum is being made available by the Indian government since April 1, 2017 for the prevention of vehicle – borne air pollution:
A. BS – 2 B. BS – 3 C. BS – 4 D. BS – 5