Page 380 - GMAT 2017b_Neatb

Mechanical Comprehension Test 1

20 THREADS INCH 3
THREADED (RIGHT HAND) 2 4
BLOCK
B
1
5

10 THREADS INCH HAND A 6
(RIGHT HAND) WHEEL 4
7
53. In the figure above, the threaded block can slide in the
slot but cannot revolve. If the hand wheel is turned 20 57. In the diagram above, crank arm C revolves at a
revolutions clockwise, the threaded block will constant speed of 400 rpm and drives the lever AB.
move When lever AB is moving the fastest, arm C will be in
(A) 1 inch to the left. position.
1 (A) 1
(B) inch to the left
2 (B) 6
(C) 1 inch to the right (C) 5
1 (D) 7
(D) inch to the right
2
58. Assume that the color of the flame from a gas stove is
A
bright yellow. To correct this, you should
(A) close the air flap
B
(B) increase the size of the gas opening.
54. What is the function of A and B in the crankshaft (C) increase the gas pressure.
shown in the drawing? (D) open the air flap.
(A) They strengthen the crankshaft by increasing its
weight.
(B) They make it easier to remove the crankshaft for A
repairs.
(C) They are necessary to maintain the proper 4
balance of the crankshaft. C
(D) They hold grease for continuous lubrication of 2
the crankshaft.
59. If gear A makes one clockwise revolution per minute,
55. Sweating usually occurs on pipes that which of the following is true?
(A) contain cold water. (A) Gear B makes one counterclockwise revolution
(B) contain hot water. every 4 minutes.
(C) are chrome plated. (B) Gear C makes two clockwise revolution every
(D) require insulation. minute.
(C) Gear B makes four clockwise revolutions every
minute.
(D) Gear C makes one counterclockwise revolution
every 8 minutes.

0 10 20
TO TRUCK
60. The reading shown on the above gauge is
(A) 10.35
56. The tank, T, is to be raised as shown above by attaching (B) 13.5
the pull rope to a truck. If the tank is to be raised 10 feet, (C) 10.7
the truck will have to move (D) 17.0
(A) 20 feet (B) 40 feet
(C) 30 feet (D) 50 feet

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