Surging can cause (select all that apply):

a. seal leakage
b. vibration
c. destruction of the machinery
d. deadheading conditions


a. Incorrect. Surging can cause many problems, including bearing failures, shaft failures, and destruction of the machinery.
b. Correct. Surging can cause many problems, including bearing failures, shaft failures, and destruction of the machinery.
c. Correct. Surging can cause many problems, including bearing failures, shaft failures, and destruction of the machinery.
d. Incorrect. Surging can cause many problems, including bearing failures, shaft failures, and destruction of the machinery.

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The following temperatures in degrees F were recorded at noon over a three week period: 66, 68, 70, 73, 74, 78, 82, 74, 68, 65, 67, 62, 63, 71, 74, 76, 79, 80, 82, 84, 75.

(a) Compute the mean, median, and mode. (b) Using 5 degree intervals starting with 61–65, draw a frequency diagram.

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The Marshall and Swift (M&S) equipment cost index started with a base value of 100 in 1926. De­termine the average (compound) percentage in­crease per year between 1926 and 2011 when the index value was 1490.2.

What will be an ideal response?

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Inductive ammeters work because of what principle?

A) Electrostatic electricity B) A magnetic field surrounds any wire carrying a current C) Voltage drops as it flows through a conductor D) Magic

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Technician A says that an upper coupler kingpin template is used to verify that a kingpin is in satisfactory condition. Technician B says that a kingpin plug is used both when testing and reassembling 5th wheels. Who is correct?

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

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