Automotive Engines - Test 1

What components of the automotive engine assembly is used to seal off the top of the engine's cylinders?

• Connecting rods

• Crankshaft assembly

• Cylinder heads

• Cylinder block

Two technicians are discussing four-stroke-cycle automotive engines. Tech A says that a "pushrod" type engine has a camshaft that is locked int he engine block. Tech B says that a double overhead camshaft (DOHC) V-type engine has four camshaft. Who is correct

• A only

• B only

• Both A & B

• Neither A nor B

In an automotive engine, which engine component operates with a reciprocating motion?

• Crankshaft

• Flexplate

• Valve lifter pushrod

• Flywheel

In a four-stroke-cycle engine, the _________________ controls the opening and closing of the intake and exhaust valves.

• Cylinder head(s)

• Piston

• Camshaft(s)

• Connecting rod

Tech A says that an inline type of engine has one row of cylinders. Tech B says that a V-type engine has two rows of cylinders positioned 90⁰/60⁰/etc. from each other. Who is correct?

• A only

• B only

• Both A and B

• Neither A nor B

The engine term "TDC" can be defined as the __________ in the cylinder.

• Highest point of piston travel

• Total distance traveled by a piston

• Mid-point of piston travel

• Lowest point of piston travel

An automotive engine's ____________________ is responsible for converting reciprocating motion to usable rotary motion to propel the vehicle.

• Crankshaft

• Oil Pump

• Camshaft

• Timing chain

An automotive engine that has all of its intake and exhaust valves located in its cylinder head(s) can be referred to as a:

• "F" head engine

• "I" or "OHV" head engine

• "L" head engine

• Prechamber head engine

Which component below is attached to the pulley drive end of an automotive engine crankshaft to isolate vibrations from the pulley system?

• Camshaft(s) and valve train

• Piston and connecting rod assembly

• Harmonic balancer (vibration dumper)

• Oil pump assembly

Tech A says that a splayed crankshaft allows a 6-cylinder engine to fire evenly. Tech B says that a four-stroke-cycle automotive engine operates from the energy released when the engine's air/fuel mixture is burned. Who is correct?

• Tech A

• Tech B

• Both A & B

• Neither A nor B