Mechanics Exam Study Guide Questions and Complete Solutions Graded A+
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Course
Mechanics NEIEP
Institution
Mechanics NEIEP
how do you test a megger on an armature? - Answer: Disconnect power and ground to isolate armature. min resistance is 1 meg ohm.
Come up to operating speed in the down and see heavy drag and it's hot. what's wrong? - Answer: partially shorted resistor and brake isn't picking all the way
C...
Mechanics Exam
Study Guide
Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
, how do you test a megger on an armature? - Answer: Disconnect power and ground to isolate
armature. min resistance is 1 meg ohm.
Come up to operating speed in the down and see heavy drag and it's hot. what's wrong? - Answer:
partially shorted resistor and brake isn't picking all the way
Customer complains doors open and immediately, why? - Answer: shorted resistor or bad capacitor
when testing resistance on a parallel circuit, to avoid false reading you would? - Answer: remove one
leg and test
where would you find details of the elevator installation? - Answer: final layout
what is the maximum degrees rise of an escalator? - Answer: 30 degrees
what would you use to measure high amperage? - Answer: clamp-on meter
what are directional limits used for? - Answer: limit in one direction only
what is considered a fall hazard? - Answer: 6 ft or more
how would you connect an ammeter - Answer: in series
a disconnect is moved 30' and motor starts acting up, what should you do? - Answer: run larger gauge
wire
where would you find details of equipment ordered for the job - Answer: job abstract
what is put in place so that the car cannot leave with the doors open - Answer: suicide circuit
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