Page 403 - GMAT 2017b_Neatb

Mechanical Comprehension Test 2

107. A force of 10 pounds is required to move a spring 8
inches. How far will the spring stretch under 15 pounds
of force?
(A) 12 inches
(B) 14 inches 1 2
(C) 16 inches
(D) 18 inches

108.If 18 full turns are required to move a nut 1.2 inches,
how many threads per inch does the screw have?
(A) 10
(B) 12 4 3
(C) 15
(D) 20

109.Using a lever, a man is able to lift a 120-pound load with
only 40 pounds of force. What is the mechanical
advantage of the lever? 111.If gear 1 turns clockwise, which other gears, if any,
(A) 1 will also turn clockwise?
3
(A) 2 only
(B) 3
(B) 3 only
(C) 20
(C) 2 and 4
(D) 80
(D) None
112.When a submarine dives, it fills its ballast tanks with
water, causing all the following EXCEPT
(A) the density of the submarine to increase.
(B) the buoyancy of the submarine to decrease.
(C) the weight of the submarine to increase.
(D) the volume of the submarine to increase.

A B
110.How much force is required to lift a 300-pound weight
using the pulley system shown above? 113.Pulley system A offers no mechanical advantage,
(A) 75 pounds whereas pulley system B has a mechanical advantage
(B) 100 pounds of 2. In pulley system A, if the rope is pulled 10 feet,
(C) 150 pounds the hook will rise 10 feet. How many feet of rope must
(D) 900 pounds
be pulled to raise the hook in pulley system B by 10
feet?
(A) 5 feet
(B) 10 feet
(C) 15 feet
(D) 20 feet

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