AON Mechanical and Spatial Reasoning 3

Question 1

A hydraulic press has a small piston with area 5 cm² and a large piston with area 50 cm². If 10 N is applied to the small piston, what force is exerted by the large piston?

Accepted Answer

100 N

Answer

Pascal's principle: force ratio equals area ratio; 10 × (50/5) = 100 N.

Question 2

Which of these materials is the BEST conductor of electricity?

Accepted Answer

Copper

Answer

Copper is a metal with free electrons, making it an excellent electrical conductor.

Question 3

A wheel with radius 0.5 m rolls forward one full revolution. How far does it travel?

Accepted Answer

π m

Answer

Distance per revolution = circumference = 2π × radius = 2π × 0.5 = π meters.

Question 4

A 3D object has 6 faces, 12 edges, and 8 vertices. What shape is it?

Accepted Answer

Cube

Answer

A cube has exactly 6 faces, 12 edges, and 8 vertices, satisfying Euler's formula (V − E + F = 2).

Question 5

Two springs are connected in series. Spring A has a spring constant of 100 N/m and Spring B has a spring constant of 100 N/m. What is the combined spring constant?

Accepted Answer

50 N/m

Answer

Springs in series: 1/k_total = 1/100 + 1/100 = 2/100; k_total = 50 N/m.

AON - Assessment Practice Test

AON - Assessment Practice Test

AON Mechanical and Spatial Reasoning 3