Classification of Lubricating System – 2

·         Mist lubrication system is used for ____________ stroke cycle engines.

Answer: two

·         In drip system oil is fed to machine parts drop by drop, from an oil cup.

Answer: True

·         The ball and roller bearings are lubricated to reduce friction and wear between the sliding parts of the bearing.

Answer: True

·         The ball and roller bearings are lubricated to prevent rusting or corrosion of bearing surfaces.

Answer: True

·         All the lubricating oil from the oil sump, must pass through an oil filter before it is supplied to the engine bearings.

Answer: All the lubricating oil from the oil sump, must pass through an oil filter before it is supplied to the engine bearings.

·         Bearings maintain very close tolerances and are likely to be damaged by an foreign abrasive material entering the lubrication line.

Answer: True

·         In by pass type filter arrangement, only a small portion of the lubricating oil is passed through the filter and the remaining lubricating oil is directly supplied to the bearings by the oil pump at pre-set pressure.

Answer: True

·         In full flow type filter arrangement, whole of the oil is filtered before it is supplied to various bearings.

Answer: In full flow type filter arrangement, whole of the oil is filtered before it is supplied to various bearings.

·         All the lubricating oil, in normal course, should be filtered approximately every minute.

Answer: But in fact, all the lubricating oil, in normal course, should be filtered approximately every half minute.

·         In closed system, the fresh air supply is taken to the crankcase from the carburettor.

Answer: True