Page 405 - GMAT 2017b_Neatb

Mechanical Comprehension Test 2

2 3 4

1 5

125. If gears 3 turns counterclockwise, which other
gear(s), if any, will turn clockwise?
122.What is the mechanical advantage of the pulley system (A) 1 and 5
shown here? (B) 2 and 4
(A) 1 (C) All will turn clockwise
(B) 2 (D) None will turn clockwise
(C) 3 Pivot point
(D) 4 27 pounds 24 pounds

123.Which of the following is heaviest?
(A) 1 cubic foot of water
(B) 1 cubic foot of lead
(C) 1 cubic foot of wood
(D) 1 cubic foot of ice 4 feet x

126.In the diagram, Kenneth wants to balance two blocks
on either side of a lever. One block weighs 27 pounds
and the other weighs 24 pounds. If the 27-pound block
is 4 feet to the left of the pivot point, how far to the
A right of the pivot point should the 24-pound block be
B placed?
(A) 4.5 feet
(B) 7 feet
(C) 4 feet
(D) 8.5 feet

124.Pulley A has 2.5 times the circumference of pulley B. If
pulley A rotates at 50 revolutions per minute (rpm), how
fast must pulley B rotate?
(A) 20 rpm
(B) 50 rpm
(C) 125 rpm
(D) 250 rpm

408