Page 394 - GMAT 2017b_Neatb

Mechanical Comprehension Test 2

44. Water is flowing into a 20-gallon container though an
inlet pipe at a rate of 18 gallons per minute. Water is
being evacuated through an outlet at 14 gallons per
minute. How much time will it take for the container to
overflow? 47. Two gears have 12 teeth and 18 teeth. If the larger
(A) 1 minute gear completes two full turns, how many rotations
(B) 5 minutes will the smaller gear compete?
(C) 8 minutes (A) 1 rotation
(D) 10 minutes (B) 1.5 rotations
(C) 2 rotations
(D) 3 rotations

48. Using the tip of a screwdriver to pry the lid off a paint
96 pounds
can is an example of what simple machine?
(A) lever
(B) pulley
(C) inclined plane
(D) gear
5 feet 12 feet

45. In the diagram, James wants to lift a 96-pound block 9 feet 5 feet
using a lever. If the block is 5 feet from the pivot point
and James is 12 feet from the pivot point, how much
force must he apply to lift the block? 70 pounds
(A) 40 pounds
(B) 17 pounds
(C) 96 pounds
(D) 60 pounds

50 feet 49. In the diagram, Stella wants to lift a 70-pound block
using a lever. If the block is 9 feet from the pivot point
and Stella is 5 feet beyond that, how much force must
she apply to lift the block?
(A) 45 pounds
10 feet 800 pounds (B) 14 pounds
(C) 125 pounds
(D) 70 pounds

46. An 800-pound block is being pulled up an incline by a
pulley. The incline is 50 feet long and rises 10 feet.
Neglecting friction, how much force is necessary to
move the block up the incline?
(A) 50 pounds
(B) 160 pounds
(C) 800 pounds
(D) 60 pounds

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