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# Test answers for Mechanical IQ Test 2016

(48) Last updated: June 14
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`1. Consider the diagram above. If the box that contains the vase and flower is moved in the direction of the arrow and is then stopped suddenly, which way will the vase fall?`

• P

• Q

• In a direction other than P or Q

`2. A bus, a jeep, a scooter, and a bicycle are thrown off a mountain at an altitude of 5000 meters. All four items are thrown at the same time, from the same height, with the same velocity, and under the same atmospheric pressure and temperature. The bus weighs the most, followed in descending order of weight by the jeep, the scooter, and the bicycle. Which of the four items will be the last to hit the ground?`

• The bus

• The scooter

• The jeep

• The bicycle

`3. Consider the first diagram above. Which of the given choices (1 to 4) will correctly complete the sequence?`

• 1

• 2

• 3

• 4

`4. Consider the diagram above. If the drive wheel rotates in a clockwise direction, in which direction will the rod's speed of movement be faster?`

• While moving toward the right side

• While moving toward the left side

• The speed of movement will be the same in both directions.

`5. If drive wheel A in the above diagram rotates in a clockwise direction, then drive wheel B will __________________.`

• rotate faster in a clockwise direction

• rotate slower in a counterclockwise direction

• rotate slower in a clockwise direction

• rotate faster in a counterclockwise direction

`6. Consider the first diagram above. Which of the given choices (1 to 4) would correctly fill the missing space?`

• 3

• 4

• 2

• 1

`7. The diagram above shows four flags on four flag posts secured in four weighted bases. The construction of the flags and the flag posts in all the four cases is the same. Analyze the given weights and calculate which flag is the easiest to balance on the flag post.`

• 1

• 3

• 2

• 4

`8. In the above diagram, the weight of man A is 250 lbs and the weight of man B is 200 lbs. Which man must exert more effort in order to hold the 100 lb load?`

• Man A

• Man B

• Both men must exert the same effort.

`9. Which of the given pictures (1 to 4) above will result in Cube A once folded?`

• 1

• 2

• 3

• 4

`10. The diagram above represents a tractor. Which wheel of the tractor rotates faster?`

• P

• Q

• Both rotate at the same speed.

`11. In the first diagram above, a force of 15 lbs compresses springs arranged in a linear series of 24 cm each. If the same force of 15 lbs is applied to parallel springs, the springs will be compressed by _____________________.`

• 30 cm

• 75 cm

• 15 cm

• 4 cm

`12. Refer to the diagram of a box above. If the force of friction is greater than the force applied in the given direction, then in which direction will the box move?`

• In the direction of the applied force

• In the direction away from the applied force

• The box will not move.

• In an upward direction

`13. If pulley A in the above diagram moves in a clockwise direction, which weight will it move in an upward direction?`

• The 60-lb weight

• The 50-lb weight

• Both weights

• Neither weight

`14. Consider the diagram above. If the cam (projecting part of a rotating wheel or shaft that strikes a lever at one or more points on its circular path) rotates in a counterclockwise direction, the bird will _______________________.`

• move forward

• rotate

• move backward

• not move at all

`15. In the above diagram of a power-supplying pulley system, which pulley will rotate the fastest?`

• 3

• 2

• 4

• 1

```16. The letters P, Q, R, and S represent four type of tires.

Tire P is 10 inches wide.
Tire Q is 20 inches wide.
Tire R is 30 inches wide.
Tire S is 40 inches wide.

These tires are fitted in pairs on a motorcycle. Consider that all four tire types are manufactured of the same material, have the same air pressure and radius, and are fitted to the same motorcycle. The motorcycle is driven on the same road every time the tires are changed. Given this information, which tire, when fitted in pairs on a motorcycle, will help prevent high fuel consumption?```

• Tire P

• Tire Q

• Tire R

• Tire S

`17. Consider the first diagram above. Which of the given choices (1 to 5) will correctly complete the sequence?`

• 4

• 1

• 3

• 2

• 5

`18. Which arrow in the above diagram will have the maximum mechanical advantage (ratio of load lifted to effort applied) of lifting the load of 30 lbs most efficiently?`

• P

• Q

• R

• S

`19. If each arrow in the above diagram represents an equal number of students moving on a path, then which path is the most crowded?`

• X

• V

• Y

• Z

`20. If gear A in the above diagram rotates at a speed of 20 RPM in a clockwise direction, then the direction of rotation and speed of gear F will be ___________________.`

• clockwise at 20 RPM

• counterclockwise at 20 RPM

• clockwise at 10 RPM

• counterclockwise at 10 RPM

`21. Given the information in the above diagram,how much force is required at Point C in order to lift the weight at Point B?`

• 100 lbs

• 50 lbs

• 25 lbs

• 30 lbs

```22. There are two slides P and Q which slide in the guide-ways A, B, C and D. P slides from A to C and vice versa. Q slides from D to B and vice versa. The clockwise rotating device R is attached to the two slides P and Q in such a way that the rotary motion R is converted to the reciprocating motion of the two slides.
When the slide Q reaches the centre and slide P reaches the top i.e. point A as shown in the figure the device R faces towards C. The slides travel half the distance in their respective guide-ways to make the rotating device face any of the four points A, B, C and D.
If the device R faces towards Point D, then what shall be the position of the slide P.```

• Point A

• Point B

• Point C

• Point D

• At the centre

`23. In the above diagram, a load of 100 lbs is kept on four different measuring scales at different positions. Which scale will show the maximum deflection?`

• 3

• 2

• 1

• 4

`24. A person weighing 200 lbs jumps from a ten-story building carrying a load of 100 lbs. How much load will the person experience while falling?`

• 9.8 lbs

• 100 lbs

• 0 lbs

• 300 lbs

`25. Given the information in the above diagram, how much weight must be placed at point B in order to balance the lever?`

• 10 lbs

• 20 lbs

• 15 lbs

• 40 lbs

`26. Which of the above groups of shapes can be assembled to make shape A? The direction of the shapes can be changed as necessary.`

• 1

• 2

• 3

• 4

`27. The pendulums of each wall clock in the above diagram weigh the same. If the clocks strike 12 and the pendulums start swinging, which pendulum will complete one full stroke in the shortest amount of time?`

• 1

• 2

• 3

• 4

`28. A bolt or a nut is tightened by turning it in a clockwise direction and loosened by turning it counterclockwise. What type of threads do bolts or nuts have?`

`29. Consider the first diagram above. Which of the given choices (1 to 4) would correctly fill the missing space?`

• 4

• 3

• 2

• 1

```30. The above diagram shows five boxes (A, B, C, D, and E) attached to each another. The area of each box is as follows:

A- 300 square meters
B- 250 square meters
C- 100 square meters
D- 150 square meters
E- 270 square meters

If the forces P and Q are applied in the directions represented by the arrows, which box will experience the most amount of stress?```

• A

• B

• C

• D

• E

`31. Which of the above cubes will be formed when Picture A is folded?`

• 4

• 2

• 1

• 3

`32. If gear A in the above diagram rotates in a clockwise direction, then in which direction does the slide Q move?`

• to the left

• to the right

• It does not move.

`33. From which of the beakers shown in the diagram above will water flow out faster?`

• 1

• 2

• 3

• Water will flow out at the same speed from each beaker.

`34. With which of the screwdrivers in the diagram above will it be possible to unscrew the screw most efficiently such that equal amount of force is exerted on the handle of the screwdriver.`

• 1

• 2

• 3

`35. The above diagram shows the trajectories of four balls 1, 2, 3, 4 thrown from point O. If all four balls are thrown with equal force and travel with the same velocity but in different directions, which ball will fall farthest from point O. Considering that the wind resistance is constant. The maximum height of the trajectory of the balls from the ground level is also indicated?`

• 1

• 2

• 3

• 4

`36. Consider the first diagram above. Which of the given choices (1 to 4) will correctly complete the sequence of shapes?`

• 2

• 1

• 4

• 3

`37. Use your mechanical measurement skills to visually judge which combination of hooks in the above diagram will hold the board A properly on board B.`

• 1 and 2

• 2 and 4

• 1 and 4

• 2 and 5

`38. Four blocks of steel all having equal weight and equal volume, but different surface areas, are thrown in a pond 50 meters deep. The surface area of the first block is 100 square meters, the second block is 200 square meters, the third block is 300 square meters, and the fourth block is 400 square meters. Which block will require the most time to reach the bottom of the pond?`

• The first block

• The second block

• The third block

• The fourth block

• All four blocks will require the same amount of time.

`39. What is the name of a flat shape comprised of eight corners and eight straight edges?`

• Octagon

• Hexagon

• Pentagon

• Rectangle

`40. In the above diagram, a circular portion of the 20 cm radius is cut from a rectangular steel sheet of 50 cm x 60 cm. What is the area of the remaining portion of the sheet?`

• 1644 cm2

• 1744 cm2

• 1544 cm2

• 1444 cm2

`41. Which of the above battery circuit diagram shows batteries coupled in series?`

• 1

• 2

• 3

• None of the above

`42. Which of the two pulley systems in the given diagram will require more force to lift the load?`

• 1

• 2

• Both require the same force.

`43. The diagram above shows four slides made of the same material. The same kind of ball is thrown down each slide at the same time and at the same velocity. From which slide will the ball reach the ground the fastest?`

• 1

• 2

• 3

• 4

`44. Given the information in the above diagram,how much weight must be placed at point D in order to balance the lever?`

• 100lbs

• 200lbs

• 160lbs

• 260lbs

`45. Which of the above Venn diagrams shows the proper relationship between cutting tools, tools made of high-speed steel, and the tool room?`

• 1

• 2

• 3

• 4

`46. When a car turns left, what is the speed of rotation of the rear wheels?`

• The wheel on the left side rotates faster than the wheel on the right side.

• Both rear wheels rotate at the same speed.

• The rear wheel on the right side rotates faster than the rear wheel on the left side.

`47. Calculate the approximate value of the angle in the above diagram.`

• 90??

• 45??

• 120??

• 180??

`48. If drive wheel A in the above diagram rotates in a clockwise direction, then drive wheel B will _______________.`