FREE Mechanical Aptitude Principles 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 Principles Question and Answers flashcards as text
A worker needs to lift a 200 lb object using a single fixed pulley. How much force must the worker apply to the rope?
Answer: 200 lb
A single fixed pulley changes the direction of force but does not provide any mechanical advantage, so the full 200 lb must be applied.
Which type of stress occurs in a bolt when it is tightened to clamp two plates together?
Answer: Tensile stress
Tightening a bolt stretches it along its axis, placing it under tensile stress.
If a hydraulic system has a master cylinder with an area of 2 square inches and a slave cylinder with an area of 10 square inches, what is the mechanical advantage?
Answer: 5
Mechanical advantage equals the slave cylinder area divided by the master cylinder area: 10 / 2 = 5.
A beam is supported at both ends with a load applied at the center. What type of beam configuration is this?
Answer: Simply supported beam
A beam resting on two supports with a load between them is a simply supported beam.
What happens to the pitch of a sound when the frequency of vibration increases?
Answer: Pitch increases
Pitch is directly proportional to frequency, so higher frequency produces a higher pitch.
Which principle explains why an airplane wing generates lift?
Answer: Bernoulli's principle
Bernoulli's principle states that faster-moving air over the curved top of the wing creates lower pressure, generating lift.