Multiple Valve Engines Tend to Be More Efficient Than Engines

question 38

Multiple Choice

Multiple valve engines tend to be more efficient than engines with two valves per cylinder because:

• A) larger valve area improves the air flow in and out of the cylinder
• B) air velocity is increased-especially at low engine speed; this increases air flow
• C) smaller and lighter valves require less spring tension-less engine power is lost to spring opening drag
• D) all answers are correct

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Definitions:

Capital Stock

The total value of all physical assets owned by a company that are used in producing goods and services.

Interest Rate

The percentage charged or paid for the use of money, typically expressed as an annual rate on loans or earned on deposits.

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Allocating fiscal resources with the foresight of making an income or profit.

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The total amount spent on new capital assets before accounting for depreciation.