A Piston in an Internal Combustion Engine Applies Torque During

question 6

Multiple Choice

A piston in an internal combustion engine applies torque during 150° of each full rotation of the crankshaft to which it is connected. Suppose an 8-cylinder engine (8 such pistons) is running with its crankshaft turning at 2500 rpm and produces 410 J of work each second. What is the average torque applied to the crank shaft by one of the engine's eight pistons?

• A) 3.8 N·m
• B) 1.6 N·m
• C) 0.47 N·m
• D) 0.20 N·m

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Definitions:

Efficiency

The extent to which assets, resources, and time are used effectively to achieve a desired outcome, often measured in terms of output per input.

Semi-strong Form

A concept in efficient market hypothesis proposing that all publicly available information is fully reflected in stock prices.

Variance

A statistical measure that represents the spread or dispersion of a set of data points from their mean.

Average Squared Difference

A statistical measure used in variance calculations, representing the average of the squared differences from the mean.