Work is equal to ________.

Technician A says that spark ignition engines use glow plugs. Technician B says that compression ignition engines don't need spark plugs. Who is correct?

As ____ is a twisting or turning force, ____ is the rate (in time and distance) at which that force (_____) is produced.

Typically, if well maintained, an automotive engine will last many years and ______ miles (322,000 kilometers [km]) or more.

In a conventional four-stroke cycle, the ______.

This color exhaust emitting from a vehicle's engine indicates an excessively rich fuel mixture:

The bore is measured across the cylinder, parallel with the block deck, which is the machined surface of the block farthest from the crankshaft.

The trouble with a gear-to-gear design is that it tends to be a bit noisy compared to a ______ and the camshaft needs to be relatively close to the crankshaft.

The cylinder head contains the ______ of the engine.

    A long block engine replacement still requires swapping parts from the original engine to the short block, including the intake and exhaust manifolds, fuel injection system, starter, alternator, power steering pump, and air-conditioning compressor.

     As with intake manifolds, exhaust manifold design can have a great impact on the performance of the engine due to scavenging.

   A ______ is a small flexible metal plate that covers the inlet port.

  Technician A says that most two-stroke engines have a pressure type lubrication system. Technician B says that four-stroke engines do not require the mixing of oil with gasoline. Who is correct?

   Which of the following statements is true concerning spark-ignited two-stroke engines?

The four-stroke engine releases more hydrocarbons because it controls inlet and outlet flow better.

At ______ engine speeds, and when engine load is high enough, the secondary intake ducts are opened by butterfly valves, reducing restriction and increasing airflow and torque.

  A standard rotary engine typically has two rotors, offset from each other, in separate chambers, so it ends up with two power pulses per revolution of the eccentric shaft.

1.      At engine speeds above _____, the auxiliary duct opens, allowing the engine to draw air in through all 6 ports (3 intake ports per rotor), further increasing engine breathing.

At low engine speeds, air flows into the engine through the primary intake ducts only, keeping the air velocity in the manifold high, which provides better air-fuel mixing.