Mechanical Aptitude Knowledge Flashcards
7 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 7 Mechanical Aptitude Knowledge flashcards as text
Two gears mesh together. Gear A has 10 teeth and spins at 200 RPM. Gear B has 40 teeth. How fast does Gear B spin?
Answer: 50 RPM
Speed ratio is inverse to tooth ratio: 200 × (10/40) = 50 RPM.
A cam converts:
Answer: Rotational motion to linear/reciprocating motion
A cam (rotating eccentric shape) pushes a follower up and down, converting rotation into reciprocating linear motion.
Which type of stress occurs when a rope is being pulled from both ends?
Answer: Tension
Tension is the pulling or stretching force that acts along the length of an object.
Water flows through a pipe that narrows from 4 inches to 2 inches in diameter. The water speed in the narrow section will:
Answer: Increase by four times
Flow continuity requires that speed increases by the ratio of areas; a halved diameter means 1/4 the area, so speed quadruples.
A spring with a spring constant of 10 N/m is stretched 0.5 m. What force does it exert?
Answer: 5 N
Hooke's Law: F = k × x = 10 × 0.5 = 5 N.
Which type of bearing is best suited for handling heavy axial (thrust) loads?
Answer: Tapered roller bearing
Tapered roller bearings are specifically designed to handle both radial and heavy axial thrust loads.
A V-belt drive is slipping under load. The most likely cause is:
Answer: Belts are too loose or worn
Loose or worn V-belts lose their grip in the pulley groove, causing slippage under load.