Which one of the following determines the ability of a diesel engine to start at low temperatures, providing smooth warm-up and even combustion? a. specific gravity rating b. cloud point c. sulfur content d. cetane rating

The right answer is D. Cetane rating.

Cetane rating of the diesel determines the auto ignition temperature of the diesel it is just opposite to the octane number used in petrol engine, higher the cetane rating of diesel, faster and at low temperature the diesel will auto-ignite.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this