In a car, the indicated horsepower developed by gasoline is 100. Only 88 horsepower is available for actual work. What is the mechanical efficiency?

A. 44%
B. 66%
C. 88%
D. 99%


Answer: C

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Tenga precaución con el manejo de las roscas de tubería recién cortadas debido a que:

a. tienen protuberancias. b. son frágiles. c. son resbaladizos por el lubricante. d. son filosas.

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Any instrument with a digital readout will have ____________________.

Fill in the blank(s) with the appropriate word(s).

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Which federal agency is responsible for regulating animal drugs?

A. EPA B. USDA C. FDA D. APHIS

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How does a kerosene heater prepare its fuel for combustion?

A) Kerosene does not need to be prepared for combustion because it is highly volatile B) Oil is atomized using a high pressure pump and an atomizing nozzle C) Oil is atomized using a centrifugal motor that slings small droplets of oil into the combustion chamber D) Oil is vaporized by the heat of combustion and the hot surface of the combustion chamber

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