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ATT TEST 11 EXAM LATEST 2024 ACTUAL EXAM 100 QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A $18.69   Add to cart

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ATT TEST 11 EXAM LATEST 2024 ACTUAL EXAM 100 QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED A

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ATT TEST 11 EXAM LATEST 2024 ACTUAL EXAM 100 QUESTIONS AND CORRECT DETA ATT TEST 11 EXAM LATEST 2024 ACTUAL EXAM 100 QUESTIONS AND CORRECT DETAILED ANSWERS |ALREADY GRADED AILED ANSWERS |ALREADY GRADED A

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  • February 1, 2024
  • 14
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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By: DrReiss • 5 months ago

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ATT TEST 11 EXAM LATEST 2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A


How is CEMF related to speed and torque?ANSWER--CEMF is
proportional to speed and inversely proportional to torque


What are loads?ANSWER--items that require motion and are
driven by rotating shaft (motors) and electrical circuits that require
power (generators)


How are loads related to speed?ANSWER--Inversely proportional


What characteristic is the amount of work
accomplished?ANSWER--power


How is power calculated in motors?ANSWER--torque X RPM X K


How is power measured?ANSWER--Watts and HP


How is power related to load and speed?ANSWER--Proportional
to load and inversely proportional to speed


When is torque greatest?ANSWER--When RPM is 0 (locked
motor)

, ATT TEST 11 EXAM LATEST 2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS
|ALREADY GRADED A
How much CEMF is generated in locked motor
condition?ANSWER--None


What is the definition of one horsepower?ANSWER--Power
needed to lift 550 lbs 1 foot in one second or (33000 lbs in one
minute)


What principle of magnetism do motors operate on?ANSWER--
Attraction/repulsion


What are basic parts of a motor?ANSWER--Stator, armature
(rotor), brushes, commutator, shaft


At what points are max flux lines cut and peak volts
produced?ANSWER--When armature is parallel to lines of force
(90 and 270 degrees)


What are three types of DC generators?ANSWER--permanent
magnet, separately excited, self-excited


What are 3 types of DC motors?ANSWER--Series, shunt and
compound


What is the assumed value of K?ANSWER--1

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