The ____ is used to withdraw large nails and to pry when dismantling parts of a structure.

a.slotted screwdriver
b.flat bar
c.wrecking bar
d.cat’s paw


ANS:C

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A computer password consists of eight characters.

a. How many different passwords are possible if each character may be any lowercase letter or digit? b. How many different passwords are possible if each character may be any lowercase letter or digit, and at least one character must be a digit? c. A computer system requires that passwords contain at least one digit. If eight characters are generated at random, and each is equally likely to be any of the 26 letters or 10 digits, what is the probability that a valid password will be generated?

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A competing process produces rings whose diameters (in centimeters) vary according to the probability density function



Specifications call for the diameter to be 10.0±0.1 cm. Which process is better, this one or the one in Exercise 16? Explain.

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In reference to a hacksaw blade, what does the term set mean?

What will be an ideal response?

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What is the period of a clock waveform whose frequency is 1.4 MHz?

A) 74 ?s B) 1.7 ?s C) 700 ms D) .71 ?s

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