Page 173 - GMAT 2017b_Neatb

Paragraph Comprehension Test

39. In almost every community, fortunately, there are certain men and women known
to be public-spirited. Others, however, may be selfish and act only as their
private interests seem to require.

The paragraph suggests that those citizens who disregard others are

(A) needed
(B) found only in small communities.
(C) not known.
(D) not public-spirited.

40. Unfortunately, specialization in industry creates workers who lack versatility.
When a laborer is trained to perform only one task, he or she is almost entirely
dependent for employment on the demand for that particular skill. If anything
happens to interrupt that demand, he or she is unemployed.

The paragraph best supports the statement that

(A) the demand for labor of a particular type is constantly changing.
(B) the average laborer is not capable of learning more than one task at a time.
(C) some cases of unemployment are due to laborers’ lack of versatility.
(D) too much specialization is as dangerous as too little.

Questions 41 and 42 are based on the following passage.

41. Because electric drills run at high speed, the cutting edges of a twist drill are
heated quickly. If the metal is thick, the drill point must be withdrawn from the
hole frequently to cool it and clear out chips. Forcing the drill continuously into a
deep hole will heat it, thereby spoiling its temper and cutting edges.
A portable electric drill can be used to drill holes in material too large to handle in
a drill press.

According to the passage, over-heating a twist drill will
(A) slow down the work.
(B) cause excessive drill breakage.
(C) dull the drill.
(D) spoil the accuracy of the work.

42. One method of preventing overheating of a twist drill, according to the passage is to
(A) use cooling oil.
(B) drill a smaller pilot hole first.
(C) use a drill press.
(D) remove the drill from the work frequently.

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