Explain pictorial drawings.
What will be an ideal response?
Pictorial drawings are very easy to understand because they show an object as it appears to the person viewing it. Pictorial drawings show the length, width, and height of an object in a single view. The use of a pictorial drawing enables an individual, inexperienced in interpreting drawings, to quickly visualize the shape of single parts or various components in a complicated mechanism.
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Indicate whether the statement is true or false
With regard to a transistor, when the base-emitter junction is forward biased and the collector-base junction is reverse biased, operation is
A) at bias B) at cutoff C) in the active region D) at saturation
Water scarcity has traditionally been a major concern in the Canary Islands. Water rights are divided into shares, which are privately owned. The article “The Social Construction of Scarcity. The Case of Water in Tenerife (Canary Islands)” discusses the extent to which many of the shares are concentrated among a few owners. The following table presents the number of owners who own various numbers of shares. (There were 15 owners who owned 50 shares or more; these are omitted.) Note that it is possible to own a fractional number of shares; for example, the interval 2–< 3 contains 112 individuals who owned at least 2 but less than 3 shares.
a. Construct a histogram for these data.
b. Approximate the median number of shares owned by finding the point for which the areas on either side are equal.
c. Approximate the first quartile of the number of shares owned by finding the point for which 25% of the area is to the left.
d. Approximate the third quartile of the number of shares owned by finding the point for which 75% of the area is to the left.
In repairing a car, 8 hex head bolts, 2 oil-pan bolts, 5 fender bolts, and 3 differential-cover bolts are needed. How many bolts are used in all?
A. 11 B. 15 C. 16 D. 18