Page 386 - GMAT 2017b_Neatb

Mechanical Comprehension Test 1

90. The amount of gas in the balloons is equal. The
atmospheric pressure outside the balloons is highest on
which balloon in the figure above?
(A) A N
(B) B M
(C) C
(D) The pressure is equal on all balloons.

91. The difference between the boiling point and the 94. If gear N above turns at a constant rpm, gear M turns
freezing point of water on the Celsius scale is at
o (A) the same constant rpm as N.
(A) 0
(B) a faster constant rpm than N.
o
(B) 100 (C) a slower constant rpm than N.
o (D) a variable rpm.
(C) 112
o
(D) 180
W
Valve

95. The figure above shows a lever-type safety valve. It
will blow off at a lower pressure if weight W is
(A) increased.
(B) moved to the right.
(C) increased and moved to the right.
(D) moved to the left.

1¢¢ 2¢¢

92. Liquid is being transferred from the above barrel to the
bucket by
(A) the vacuum at the lower end of the hose 96. With the same water pressure, the amount of water
(B) the difference between the fluid volumes in the that can be carried by the above 2-inch pipe as
barrel and the bucket. compared with the 1-inch pipe is
(C) air pressure on top of the liquid. (A) the same
(D) capillary action. (B) twice as much.
(C) 3 times as much.
Coupling (D) 4 times as much.
Pipe A Pipe B 80 lbs

8 threads per inch
1¢ 4¢
93. In the figure above, if pipe A is held in a vise and pipe B
is turned 4 revolutions with a wrench, the overall 97. A pry is used to move a concrete block. A force of 80
length of the pipes and coupling will decrease pounds applied as shown above will produce a
1 tipping force on the edge of the block of
(A) inch
8 (A) 80 pounds.
(B) 1 inch (B) 240 pounds.
4 (C) 320 pounds.
(C) 3 inch (D) 400 pounds.
8
(D) 1 inch
2

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