Psychometric Test Psychometric Test Mechanical Reasoning 2

Question 1

A car travels 60 miles in 1 hour, then 90 miles in 1.5 hours. What is its average speed for the entire journey?

Accepted Answer

65 mph

Answer

Total distance = 150 miles; total time = 2.5 hours; average speed = 150/2.5 = 60 mph.

Question 2

If you increase the length of a pendulum, what happens to the time it takes to complete one swing?

Accepted Answer

It increases

Answer

The period of a pendulum increases with the square root of its length; a longer pendulum swings more slowly.

Question 3

A screw has 20 threads per inch. How many full rotations are needed to advance the screw 1 inch into wood?

Accepted Answer

20

Answer

With 20 threads per inch, each rotation advances the screw 1/20 inch, so 20 rotations advance it 1 inch.

Question 4

Two balls of equal size but different masses are dropped simultaneously from the same height. In the absence of air resistance, which lands first?

Accepted Answer

They land at the same time

Answer

Gravity accelerates all objects equally regardless of mass (Galileo's principle), so both land simultaneously.

Question 5

Which material would be the best electrical conductor?

Accepted Answer

Copper

Answer

Copper is a metal with free electrons and is one of the best electrical conductors among common materials.

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