Page 379 - GMAT 2017b_Neatb

Mechanical Comprehension Test 1

46. Neglecting friction, what is the mechanical advantage
in using a single fixed pulley shown?
(A) 1
(B) 2
(C) 3
(D) 4
brick

block

47. If the block on which the lever is resting is moved
closer to the brick in the figure above, the brick will be
(A) easier to lift and will be lifted higher. 50. If both cyclists pedal at the same rate on the same
(B) harder to lift and will be lifted higher. surface, the cyclist in front will
(C) easier to lift but will not be lifted as high. (A) travel at the same speed as the cyclist behind.
(D) harder to lift and will not be lifted as high. (B) move faster than the cyclist behind.
(C) move more slowly than the other cyclist.
(D) have greater difficulty steering.
A
X
R L
L
Y
B
R
L R

Z
51. Which of the following is correct if gear Z in the
C
figure above is turned to the right (R)?
(A) Gear Y turns L, and gear X turns R.
(B) Gear Y turns R and gear X turns R.
(C) Gear Y turns L, and gear X turns L.
(D) Gear Y turns R, and gear X turns L.
D
1
48. If all of the objects shown above are the same
temperature, and your temperature is higher than the 2
items’ temperature, which will feel coldest?
(A) A
(B) B
(C) C
(D) D 52. The figure above represents a water tank containing
water. The number 1 indicates an intake pipe and 2
drum (circumference 1 foot) indicates a discharge pipe. Of the following, the
statement that is least accurate is that the
(A) tank will eventually overflow if water flows
through the intake pipe at a faster rate than it
flows out through the discharge pipe.
(B) tank will empty completely if the intake pipe is
Weight closed and the discharge pipe is allowed to
remain open.
49. In the figure shown above, one complete revolution of (C) water in the tank will remain at a constant level if
the windlass drum will move the weight up the rate of intake is equal to the rate of
(A) 6 inches discharge.
(B) 12 inches (D) water in the tank will rise if the intake pipe is
(C) 18 inches operating when the discharge pipe is closed.
(D) 24 inches

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