Exam 32: Intake and Exhaust Systems

The most popular type of supercharger is the _____ type.

Technician A says the main advantage of a turbocharger is that it allows for an increase of power without a substantial decrease in fuel economy. Technician B says the use of exhaust gas to drive the turbocharger robs power from the engine when the vehicle is driven at low speeds. Who is correct?

Technician A says a catalytic converter breaks down HC and CO to relatively harmless by-products. Technician B says OBD-II regulations call for a monitoring system that looks at the effectiveness of the converter. Who is correct?

Vacuum refers to any pressure that is higher than the earth's atmospheric pressure at any given altitude.

Exhaust manifolds for most vehicles are made of cast or nodular iron.

Intercoolers are radiators for the intake air.

A vacuum gauge may be used to check for a restricted exhaust system.

An intercooler can reduce the temperature of the inlet air as much as __________________ degrees Fahrenheit.

What materials are exhaust pipes typically made from?

Which of the following is NOT a metal used for producing exhaust manifolds?

Many mufflers are produced with drain holes drilled into them to allow condensation to drip out.

The function of the air bypass valve in a modern supercharger is to ______.

Boost pressure is measured with a pressure gauge ______.

The boost pressure of a supercharger is proportional to ______.

Technician A says most turbochargers have their own, self-contained, lubrication system. Technician B says a turbocharger should not be operated at an engine oil pressure lower than 30 psi. Who is correct?

Technician A says turbocharging uses the heat energy in the engine's exhaust gases to drive a pump that compresses the intake air. Technician B says supercharging relies on the rotation of the engine to compress the air.