FREE Mechanical Aptitude Question and Answers Flashcards
6 cards from real MECHANICAL APTITUDE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 FREE Mechanical Aptitude Question and Answers flashcards as text
A wheelbarrow is an example of which class of lever?
Answer: Second-class lever
A wheelbarrow is a second-class lever because the load is between the fulcrum (wheel) and the effort (handles).
If two gears are meshed together and the driving gear has 20 teeth while the driven gear has 40 teeth, what is the gear ratio?
Answer: 1:2
The gear ratio is 20:40, which simplifies to 1:2, meaning the driven gear turns once for every two turns of the driving gear.
What happens to the volume of a gas when its temperature increases at constant pressure?
Answer: It increases
According to Charles's Law, gas volume increases proportionally with temperature when pressure is held constant.
A hydraulic press has a small piston with an area of 2 sq in and a large piston with an area of 20 sq in. If 10 lbs of force is applied to the small piston, what force is produced at the large piston?
Answer: 100 lbs
Force is multiplied by the ratio of piston areas: 10 × (20/2) = 100 lbs.
Which type of belt drive arrangement can reverse the direction of rotation of the driven pulley?
Answer: Crossed belt drive
A crossed belt drive twists the belt into a figure-eight, causing the driven pulley to rotate in the opposite direction of the driving pulley.
A spring with a constant of 50 N/m is compressed 0.2 meters. What is the force stored in the spring?
Answer: 10 N
Using Hooke's Law (F = kx), the force is 50 × 0.2 = 10 N.