On Engines That Have Variable Cam Timing on the Intake

question 22

Multiple Choice

On engines that have variable cam timing on the intake cam only, the cam is advanced at lower speeds. This causes the intake valve to close ________ to improve low RPM torque.

• A) later
• B) earlier
• C) higher
• D) None of these

---

Definitions:

Bushel

A unit of measure for volume, used primarily in dry commodities trading, equivalent to about 8 gallons or 36.4 liters in the U.S.

Acre

A unit of land area used primarily in the Imperial and US customary systems, equal to 43,560 square feet or about 4047 square meters.

Opportunity Cost

The worth of the second-best option that is given up as a consequence of deciding on a course of action.

Production Possibility Frontiers

A curve depicting all maximum output possibilities for two goods, given a set of inputs.