Page 385 - GMAT 2017b_Neatb

Mechanical Comprehension Test 1

83. If pulley A in the figure above is the driver and turns in 86. As shown in the figure, four air reservoirs have been
direction 1, which pulley turns fastest? filled with air by the air compressor. If the main line
(A) A air gauge reads 100 pounds, then the tank air gauge
(B) B will read
(C) C (A) 25 pounds.
(D) D (B) 50 pounds.
(C) 75 pounds.
(D) 100 pounds.

A
150 lb

600 lbs
12 ft.
84. As cam A above makes one complete turn, the setscrew
will hit the contact point 87. In the figure above, a 150-pound man jumps off a
(A) once 600-pound raft to a point in the water 12 feet away.
(B) twice Theoretically, the raft would move
(C) three times (A) 12 feet in the opposite direction.
(D) not at all (B) 6 feet in the opposite direction.
(C) 3 feet in the opposite direction.
(D) 1 foot in the opposite direction.
B
88. Which of the angles is braced most securely?

I A B C

BRACE BRACE BRACE
H
(A) A
2 (B) B
A (C) C
(D) All are equally braced

1 89. In order to keep down the inside temperature of an oil
tank that is exposed to the sun, the outside of the tank
should be painted
85. If arm H in the diagram above is held fixed as gear B (A) black
turns in direction 2, gear (B) brown
(A) A must turn in direction 1. (C) green
(B) A must turn in direction 2. (D) white
(C) 1 must turn in direction 2.
(D) A must be held fixed.
tank air gauge

air tank
100 lbs
air tank

air tank main line A B C

air compressor
air tank

388