POE Final Exam Study Guide 2024/2025 with 100% correct answers
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Course
POE F
Institution
POE F
Engineering correct answersprofession in which knowledge of advanced mathematical and natural sciences gained by higher education, experience, and practice; is devoted to creation of new technology for benefit of humanity.
Engineering Technology correct answersprofession in which knowledge of ap...
Engineering correct answersprofession in which knowledge of advanced mathematical and natural
sciences gained by higher education, experience, and practice; is devoted to creation of new technology
for benefit of humanity.
Engineering Technology correct answersprofession in which knowledge of applied mathematical and
natural sciences gained by higher education, experience, and practice; devoted to application of
engineering principles and implementation of technological advances for benefit of humanity. Education
focuses on analyzing, applying, implementing and improving existing technologies.
IMA correct answersDistance effort moves / distance load moves
AMA correct answersLoad / Effort
Efficiency correct answersAMA / IMA x 100% Nothing in the real world is more than 100% efficient.
Class 1 Lever correct answersfulcrum in middle,
Class 2 Lever correct answersload in middle
Class 3 Lever correct answerseffort in middle
IMA of a lever correct answersLength of effort arm/ length of load arm
IMA of a wheel and axle correct answersradius of effort arm/ radius of load arm
IMA of a screw correct answerscircumference / pitch of screw (inches per thread) = πd/P
, IMA of an inclined plane correct answersLength of sloped side of ramp/ height of ramp
IMA of a wedge correct answersLength of sloped side of wedge/ width of wedge
IMA of a pulley correct answersNumber of strands supporting load.
Compound Machines correct answersMAtotal = MA1 X MA2
Work correct answersForce · Distance (parallel)
Gears, sprockets and drive pulleys correct answersTransform rotational energy by changing position,
rotational directions, speed and torque.
n correct answersnumber of teeth
d correct answersdiameter
w correct answersrotational speed (rpm)
t correct answerstorque (in lbs or Nm)
driver correct answersCauses motion (in)
idler gear correct answersallows the driver and driven gears to rotate in the same direction.
compound gear train correct answersBreak down into simple gear trains and multiply individual Gear
Ratios.
sprockets correct answersuse chains: noisier, more expensive, stronger, need lubrication
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