Mechanical Aptitude Principles 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 Principles flashcards as text
A box weighing 300 lbs is pushed up a frictionless ramp 15 feet long with a 5-foot rise. What force is required?
Answer: 100 lbs
Force = Weight × (height / length) = 300 × (5/15) = 100 lbs.
Which of the following tools is used to measure small inside and outside dimensions precisely?
Answer: Vernier caliper
A Vernier caliper measures inside diameter, outside diameter, and depth with high precision.
What is the main advantage of a helical gear over a spur gear?
Answer: Smoother and quieter operation
Helical gears have angled teeth that engage gradually, resulting in smoother, quieter operation than spur gears.
A 500 lb object is hanging from a rope over a fixed pulley. The rope is pulled at an angle. What is the minimum tension needed to hold the object stationary?
Answer: 500 lbs
A single fixed pulley only changes direction of force, not magnitude — tension equals the weight: 500 lbs.
What type of stress occurs when forces pull a material apart along its length?
Answer: Tension
Tension is the stress that results from forces pulling a material in opposite directions along its axis.
Two objects of different masses fall freely from the same height in a vacuum. Which reaches the ground first?
Answer: They reach the ground at the same time
In a vacuum, all objects fall at the same rate regardless of mass because gravity accelerates them equally.
A flat belt drive is slipping on a pulley. What is the most effective solution?
Answer: Increase belt tension
Increasing belt tension raises the friction force between the belt and pulley, preventing slip.