The fire point is the lowest temperature at which the vapour of oil burns continuously for at least ________ when a small flame is brought near to it.
(a) 1 Second
(b) 2 Seconds
(c) 4 Seconds
(d) 5 Seconds
The question was asked in an interview for job.
This key question is from Lubricants General Questions in portion Lubricants of Applied Chemistry