Page 402 - GMAT 2017b_Neatb

Mechanical Comprehension Test 2

104. The vertical motion of a piston is transferred to
rotational motion at the crank. Based on the figure,
what description best describes the position and
direction of the piston when the crank arm is pointing
downward?
(A) far left and stationary
(B) in the center and moving to the left
(C) in the center and moving to the right
101. A 250-pound weight is being lifted using the pulley (D) far right and stationary
system shown here. How much force is necessary to lift
the weight? 105.Ian goes on a trail run and covers 12 miles in 1.5 hours.
(A) 50 pounds How fast was Ian running?
(B) 100 pounds (A) 6 mph
(C) 125 pounds (B) 8 mph
(D) 250 pounds (C) 10 mph
(D) 18 mph
102.When a mercury thermometer is placed in hot liquid,
mercury will travel up the thermometer to provide an
25 feet
accurate temperature reading. Why does mercury rise in
a thermometer when it is exposed to heat?
(A) Heat causes mercury to expand.
(B) Mercury is repelled by heat.
(C) Heat causes mercury to contract. 300 pounds
(D) Air bubbles push mercury up the thermometer. 10 feet

120 pounds
106.A 300-pound block is being pulled up an incline by a
pulley the incline is 25 feet long and rises up 10 feet.
Neglecting friction, how much force is necessary to
move the block up the incline?
(A) 120 pounds
11 feet 6 feet
(B) 250 pounds
(C) 300 pounds
103.In the diagram, Holly wants to lift a 120-pound block (D) 35 pounds
using a lever. If the block is 11 feet from the pivot point
and Holly is 6 feet from the pivot point, how much force
must she apply to lift the block?
(A) 220 pounds
(B) 66 pounds
(C) 120 pounds
(D) 720 pounds

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