An engine is lacking power, Technician A says it could be caused by a dirty air cleaner. Technician B says it could be caused by a restriction in the air intake system. Who is correct?

A dirty air filter can cause the air/fuel ratio to be _____.

Technician A says the heat riser is used to allow exhaust gasses to pass more quickly through the exhaust manifold. Technician B says the heat riser is used to aid in vaporization of fuel. Who is correct?

Manifolds are classified as wet if _____.

_____ is the measure of the amount of air pressure, above atmospheric, that a turbocharger can deliver.

Technician A says intake manifold design can increase horsepower. Technician B says horsepower is not affected by air flow. Who is correct?

An engine with a turbocharger needs to be inspected. Technician A says the radial clearances should be checked on the main shaft. Technician B says the axial clearances should be checked on the main shaft. Who is correct?

Technician A says the wastegate is normally open to allow exhaust gasses to by-pass the turbine. Technician B says the wastegate is normally closed to allow exhaust gasses to turn the turbine. Who is correct?

A resonator is used to _____.

The advantage of a polyurethane filter is that it _____.

Technician A says the number of runners in an intake manifold always equals the number of cylinders. Technician B says some four cylinder engines have three runners in the intake manifold. Who is correct?

An intercooler is _____.

Technician A says a disadvantage of the Roots type blower is that increases frictional horsepower. Technician B says engines with Roots type blowers have better fuel efficiency. Who is correct?

A loose connection in the air intake after the manifold absolute pressure sensor will result in all of these except _____.

Technician A says all engines should be turbocharged because the internal components are the same as on a naturally aspirated engine. Technician B says engines with turbochargers require stronger pistons. Who is correct?

In an average engine, ______ gallons of air are brought in for every gallon of fuel consumed.

Exhaust restrictions can easily be checked by checking _____.

Supercharging means to _____.

The Roots type blower is powered by the _____.

An engine with a turbocharger is lacking power. Technician A says the problem may be a broken compressor blade. Technician B says the problem may be dirt in the compressor. Who is correct?

Technician A says the wastegate is used to direct exhaust gasses away from the turbocharger when there is no demand for power. Technician B says the wastegate is used to prevent excessively high turbo boost, Who is correct?

In a turbocharged engine, the compressor is power by the _____.

An engine that uses atmospheric pressure to force air into the engine is called a _____ engine.

Intake manifolds are commonly made of _____.

Technician A says on engines with turbochargers, the exhaust gas temperatures are generally higher. Technician B says on engines with turbochargers, the exhaust gas temperatures are generally lower. Who is correct?

After approximately how many miles should the air cleaner be replaced under normal driving conditions?

A turbocharged engine is exhausting blue smoke. Technician A says it could be caused by an air restriction. Technician B says it could be cause by a bad PCM. Who is correct?

Technician A says all air cleaners can be cleaned with gasoline and reused. Technician B says there are no air cleaners on older or newer vehicles that can be cleaned or reused. Who is correct?

Technician A says turbocharger boost can produce pressure in the intake manifold of about 6-10 psi, Technician B says a turbocharger will increase horsepower but not torque. Who is correct?

The function of the center housing of the turbocharger assembly is to _____.

Which type of component uses exhaust gases to turn a turbine that forces air into cylinders?

Technician A says the exhaust pipe connects the exhaust manifold to the catalytic converter. Technician B says the exhaust pipe connects the exhaust manifold to the muffler. Who is correct?

What is the purpose of the wastegate?

On vehicles with electronic carburetors, the _____ is designed to restrict the exhaust gases during engine warm up.

If the intake cross-over passage is plugged, it will cause the engine to have _____.

Identify the component or flow in the drawing numbered #1.

Identify the component or flow in the drawing numbered #2.

Identify the component or flow in the drawing numbered #3.

Identify the component or flow in the drawing numbered #4.

Identify the component or flow in the drawing numbered #5.

Identify the component or flow in the drawing numbered #6.

The _____ is designed to dampen exhaust noises.

An exhaust restriction can be found by checking and measuring the exhaust.

One indication of a dirty air cleaner (filter) is excessive _____.

An engine that should bot be shut off immediately after running at high speeds will have a/an _____ on it.

Overboost on a turbocharged engine can be caused by a _____.

Which of the following statements is/are NOT true about an intercooler? An intercooler is _____.

A mechanically operated air pump that forces air into the engine and uses frictional horsepower is called a _____.

Which of the following is/are NOT true about a blower?