Page 377 - GMAT 2017b_Neatb

Mechanical Comprehension Test 1

(C) If the head of the bolt is held stationary and the
nut is turned clockwise, the nut will move up. FRAME NUT
(D) If the nut is held stationary and the head turned WASHER
counterclockwise, the bolt will move up.
SPRING

BALL WEIGHT

33. Which hydraulic press requires the least force to lift the
PIVOT POINTS
weight?
(A) A 37. If the ball and spring mechanism is balanced in the
(B) B position shown above, the ball will move upward if
(C) C the
(D) All three require the same force. (A) nut is loosened
(B) ball is moved away from the frame
34. The try-cocks of steam boilers are used to (C) nut is loosened and the ball moved away from
(A) act as safety valves the frame
(B) empty the boiler of water (D) nut is tightened.
(C) test steam pressure in the boiler
(D) find the height of water in the boiler.
RIVETED SPLICE

38. In the structural steel splice above, the different types
of rivets are shown by different symbols. The number
of different types of rivets is
(A) 6
35. In the case of the standard flanged pipe shown above, (B) 4
the maximum angle through which it would be (C) 5
necessary to rotate the pipe in order to line up the holes (D) 3
is
39. The main purpose of baffle plates in a furnace is to
o
(A) 22.5 (A) change the direction of flow of heated gases.
o (B) retard the burning of gases.
(B) 45 (C) increase combustion rate of the fuel.
o
(C) 30 (D) prevent escape of fuel gases through furnace
openings.
o
(D) 60
3¢ 3¢ 6¢
LATHE
1 16 CENTER
8

5¢ 10¢ F LENGTH TO
40. A very light cut (trace) is being measured as a check
BE THREADED
36. The force F needed to balance the lever shown above before cutting the thread on the lathe. The number of
is, in pounds, most likely threads per inch shown above is
(A) 7.5
(B) 12.5
(C) 10
(D) 15

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