Which of the following valve types is NOT approved for use in a gas system?

a. ball
b. gate
c. butterfly
d. plug


ANSWER: c

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A financial services consulting company bought an office building for $900,000. The company has 10 professional staff members. Monthly expenses for salaries, utilities, grounds maintenance, etc. are $1.1 million. The average billing rate per profes­sional is $90 per hour. Use an interest rate of 1% per month and assume the building will have a re-sale value of $1.5 million after 10 years. (a) How many hours per month must be billed in order to make a profit of $15,000 per month? (b) How many hours per professional per month must be billed? (c) There are 260 eight-hour workdays per year. Of the total work hours available per month, what percentage does the hours per professional in part (b) represent?

What will be an ideal response?

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The speed of sound in a fluid can be calculated using the following equation:

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Generally, microprocessor chips do not include

A) RAM. B) instruction decoding. C) an ALU. D) registers.

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Of the five modes of transportation, which one requires the lowest capital investment?

A) air B) water C) rail D) motor E) pipeline

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