Mechanical Reasoning Practice Test

This is a practice mechanical reasoning test that simulates a real mechanical reasoning aptitude test. 

The test has 10 questions and you should aim to complete the test within 15 minutes.

All questions are multiple-choice. 

Make sure you read a question in full before answering.

Answers and explanations to the questions are provided at the end of the test.

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Mechanical Reasoning: question 1 of 10

Campers are trying to start a fire using only the sunlight and a magnifying glass. When they are holding the magnifying glass 15 inches away from the wood, it starts to smoke. How close to the wood should they hold the magnifying glass in order to create a fire?