FREE EIAT Mechanical Question and Answers

Question 1

As seen in the illustration, three identically sized balls made of the materials K, L, and M are floating in the water. The items are being acted upon by buoyant forces FK, FL, and FM.

Which of the aforementioned statements about these forces is true?

Accepted Answer

Fb (K)  > Fb (M) > Fb (L)

Answer

F_{b (L)} > F_{b (M)} > F_{b (K)}

Answer

Fb (K)  = Fb (L) = Fb (M)

Answer

None of the above

Question 2

Which way does the grey wheel rotate? (Mark C if neither.)

Accepted Answer

A

Answer

B

Answer

C

Question 3

What are the differences between gear 3's rotational direction and speed (angular velocity) and gear 1's?

Accepted Answer

Gear 3 rotates slower than gear 1 and both rotate in the same direction

Answer

Both gears revolve at the same angular velocity and in the same direction

Answer

Gear 3 rotates faster and in the opposite direction to gear 1

Answer

None of the above

Question 4

A 40cm spring suspended on a hook 1.2m above the ground has a constant 2000 N/m force. At the spring's low point, a solid sphere with a 5 cm radius is suspended. What is the solid sphere's maximum weight without touching the ground?

Accepted Answer

1400 N

Answer

1600 N

Answer

1500 N

Answer

None of the above

Question 5

There is a whistle from a railroad. 5 seconds later, there is an echo. How far away is the reflecting surface if the speed of sound is 343 m/s?

Accepted Answer

857.5 m

Answer

1715 m

Answer

137.2 m

Answer

None of the above

Question 6

A 24 cm converging lens is 12 cm away from an object that is 10 cm high. How high is the image this lens creates?

Accepted Answer

20 cm

Answer

10 cm

Answer

5 cm

Answer

None of the above

Question 7

Which way is the wheel going to turn? (Mark C if neither.)

Accepted Answer

B

Answer

A

Answer

C

As seen in the illustration, three identically sized balls made of the materials K, L, and M are floating in the water.The items are being acted upon by buoyant forces FK, FL, and FM.Which of the aforementioned statements about these forces is true?

As seen in the illustration, three identically sized balls made of the materials K, L, and M are floating in the water.
The items are being acted upon by buoyant forces FK, FL, and FM.
Which of the aforementioned statements about these forces is true?