Page 393 - GMAT 2017b_Neatb

Mechanical Comprehension Test 2

36. A screw has 6 threads per inch. How many full turns are 40. If gear 1 turns clockwise, which other gear(s), if any,
necessary for the nut to travel 2 inches. will also turn clockwise?
(A) 6 turns (A) 2 only
(B) 12 turns (B) 3 only
(C) 18 turns (C) 3 and 4 only
(D) 24 turns (D) 2, 3 and 4

37. When you add water to a tank, the water pressure at the
top will
(A) change with the water depth.
(B) decrease.
(C) stay the same.
(D) increase.

38. What is the mechanical advantage of the pulley system
shown here?
(A) 1 41. A handle is connected to the ceiling by a series of
(B) 2 springs with force constants of 400, 200, and 100
(C) 3 pounds per inch. When a 200-pound soldier hangs
(D) 4 from the handle, how many inches does the platforms
stretch?
39. A block made of what material will float on water? (A) 2 inches
(A) metal (B) 2.5 inches
(B) glass (C) 3 inches
(C) styrofoam (D) 3.5 inches
(D) rock
42. Matt leaves his barracks and travels east at 45 mph. At
the same time, Phil leaves the same barracks and
travels west at 35 mph. After 2 hours, how far away
from each other will they be?
3 (A) 20 miles
(B) 80 miles
(C) 135 miles
(D) 160 miles

1 2 43. Two men are racing on bicycles. Both have 52-tooth
front chain rings. One has a 12-tooth rear cog and the
other has a 14-tooth rear cog. If the first bike is being
pedaled at 60 rpm, how fast must the other bicycle be
pedaled to keep up?
4
(A) 60 rpm
(B) 70 rpm
(C) 80 rpm
(D) 90 rpm

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