Chapter 3 Quiz: M03 AUTI 141

Technician A says atmospheric pressure decreases as altitude increases. Technician B says atmospheric pressure increases as altitude increases. Who is correct? Group of answer choices Technician A Technician B Both A and B Neither A nor B

Technician A

Technician A says compression ratio is based only on the distance the piston moves from BDC to TDC. Technician B says increasing the compression ratio of an engine can lead to detonation. Who is correct? Group of answer choices Technician A Technician B Both A and B Neither A nor B

Technician B

50 pounds applied to a wrench 24 inches long will produce how much torque: Group of answer choices 50 ft lbs 100 ft lbs 150 ft lbs 250 ft lbs

100 ft lbs

It takes two complete camshaft revolutions and one revolution of the crankshaft to complete one engine cycle. Group of answer choices True False

False

A vehicle with sequential fuel injection will: Group of answer choices Inject fuel only once per engine cycle Inject fuel on every stroke of a four-stroke cycle Have one fuel injector that is used for all of the cylinders in a multi-cylinder engine Inject fuel all the time when an engine is running

Inject fuel only once per engine cycle

Technician A says balance shafts are used to reduce the vibrations produced when the pistons are at TDC and BDC. Technician B says balance shafts rotate at crankshaft speed. Who is correct? Group of answer choices Technician A Technician B Both A and B Neither A nor B

Neither A nor B

All of the following are factors in volumetric efficiency except: Group of answer choices Altitude Fuel type Exhaust tuning Piston design

Piston design

The combustion chamber is the space between the top of the piston and the cylinder head. Group of answer choices True False

True

The period of time that the exhaust and intake valves are both open is called: Group of answer choices valve angle valve clearance valve timing valve overlap

valve overlap