Variable Intake Manifolds Are Being Discussed

question 1

Multiple Choice

Variable intake manifolds are being discussed. Technician A says an intake manifold tuning (IMT) system uses a butterfly valve to divide the plenum into two small chambers at low speeds. At high engine speeds, the butterfly valve opens to form one large plenum chamber. Technician B says the intake manifold runner control (IMRC) system changes the path of air between long and short runners or between small-diameter and large-diameter runners according to engine speed. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

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Definitions:

Factory Overhead

Costs associated with operating a factory that are not directly tied to a specific product, including maintenance, utilities, and salaries of supervisors.

Factory

A building or group of buildings where goods are manufactured or assembled primarily by machines.

Factory Rent

The cost incurred for leasing a facility used in the manufacturing process.

Factory Overhead

Every manufacturing-related expense excluding the costs of direct materials and direct labor.