Engine Repair Midterm Exam Questions with Correct Answers 100% Verified|
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Before belt removal, rotate the camshaft until the crankshaft and the camshaft timing marks
align with_____ number piston at TDC. A. four B. three C. one D. None of the above. C
True/False All late-model engine cylinder blocks are made from aluminum. False
True/False A wet sleeve must be thicker than a dry sleeve. True
True/False Ring lands are the areas between and above the ring grooves. True
True/False Aluminum is seldom used for engine pistons. False
True/False A cam-ground piston is slightly out-of-round. True
True/False A broken-surface rod often can be rebuilt. False
True/False Balancer shafts are also called silencer shafts. True
True/False A timing belt cover is different from an engine front cover. False
True/False An oil slinger uses centrifugal force to lubricate the engine's timing chain. True
True/False To take up slack in a timing chain, a tensioner is used. True
, True/False A crank sprocket is usually mounted on the camshaft. False
True/False The primary purpose of the engine front cover is to prevent oil leakage out the front
of the engine. True
True/False Thermal efficiency generally ranges from 30-40%. True
True/False Cylinder bore is measured from top to bottom. False
True/False Gasoline engine compression pressures are typically higher than those of diesel
engines. False
True/False Work = distance moved + clapsed time, False
True/False The prony brake was the forerunner of today's anti-lock braking systems. False
True/False As the engine heats up, lubricating oil becomes thinner and more "runny." True
True/False Approximately 20-30% of an engine's power is fost to friction. True
True/False Oil pumps are always driven by a gear on the camshaft. False
True/False The two types of engine bearings are friction and antifriction. False
True/False Dry sump lubrication systems are found only on older model cars. False
Guaranteed Success
Before belt removal, rotate the camshaft until the crankshaft and the camshaft timing marks
align with_____ number piston at TDC. A. four B. three C. one D. None of the above. C
True/False All late-model engine cylinder blocks are made from aluminum. False
True/False A wet sleeve must be thicker than a dry sleeve. True
True/False Ring lands are the areas between and above the ring grooves. True
True/False Aluminum is seldom used for engine pistons. False
True/False A cam-ground piston is slightly out-of-round. True
True/False A broken-surface rod often can be rebuilt. False
True/False Balancer shafts are also called silencer shafts. True
True/False A timing belt cover is different from an engine front cover. False
True/False An oil slinger uses centrifugal force to lubricate the engine's timing chain. True
True/False To take up slack in a timing chain, a tensioner is used. True
, True/False A crank sprocket is usually mounted on the camshaft. False
True/False The primary purpose of the engine front cover is to prevent oil leakage out the front
of the engine. True
True/False Thermal efficiency generally ranges from 30-40%. True
True/False Cylinder bore is measured from top to bottom. False
True/False Gasoline engine compression pressures are typically higher than those of diesel
engines. False
True/False Work = distance moved + clapsed time, False
True/False The prony brake was the forerunner of today's anti-lock braking systems. False
True/False As the engine heats up, lubricating oil becomes thinner and more "runny." True
True/False Approximately 20-30% of an engine's power is fost to friction. True
True/False Oil pumps are always driven by a gear on the camshaft. False
True/False The two types of engine bearings are friction and antifriction. False
True/False Dry sump lubrication systems are found only on older model cars. False
