The difference between an N-channel and a P-channel JFET is _____.

a. that the P-channel JFET contains a drain terminal
b. that the N-channel JFET contains a drain terminal
c. the allowable ampacity
d. the polarity of the voltage


d. the polarity of the voltage

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Engine dynamometers are used in emission control testing programs because testing of oxides of nitrogen can only be done when the engine is under load.

Answer the following statement true (T) or false (F)

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Commodities are any useful things that can be produced, sold, or bought

Indicate whether the statement is true or false

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Which of the following dimensions is regarded as being correct for clutch brake squeeze at the clutch pedal?

A. 1 inch B. 1 1/2 inches C. 2 inches D. 2 1/2 inches

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The article “Traps in Mineral Valuations—Proceed With Care” models the value (in millions of dollars) of a mineral deposit yet to be mined as a random variable X with probability mass function p(x) given by p(10)=0.40, p(60)=0.50, p(80)=0.10, and p(x)=0 for values of x other than 10, 60, or 80.

a. Is this article treating the value of a mineral deposit as a discrete or a continuous random variable?
b. Compute .
c. Compute .
d. The project will be profitable if the value is more than $50 million. What is the probability that the project is profitable?

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