In a column of water, each foot of head exerts a force of _____.

a. 0.138 psig
b. 0.375 psig
c. 0.433 psig
d. 0.897 psig


c. 0.433 psig

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?When observing a Hall effect sensor on a lab scope; Technician A says pay attention to the downward and upward pulses; they should be at an angle. Technician B says if they appear straight this indicates the transistor is faulty, causing the voltage to rise slowly. Who is correct?

A. ?A only B. ?B only C. ?Both A and B D. ?Neither A nor B

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A certain unsharpened cylindrical pencil is 1/4 inch in diameter and 10 inches long. What is the pencil’s volume?

a. 1 in3 b. 0.5 in3 c. 5 in3 d. 10 in3

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The typical arrangement for a wheel loader is:

a. solid mounted front axle and oscillating rear axle b. front steering axle and rear oscillating axle c. front oscillating axle and rear steering axle d. oscillating front axle and solid mounted rear axle

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In a technique known as ____, the designer repeatedly analyzes both the hydraulic and thermal performance of a system using “candidate” hardware options and operating conditions, until a combination is found that yields acceptable heat distribution.

a. trial and error b. selective pairing c. elimination d. iteration

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