ELECTRO 3 - MOTOR TROUB

ELECTRO 3 - MOTOR TROUB

University

16 Qs

quiz-placeholder

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ELECTRO 3 - MOTOR TROUB

ELECTRO 3 - MOTOR TROUB

Assessment

Quiz

Physics

University

Practice Problem

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the biggest cause of motor failures according to statistics?

bearing failure

stator winding failure

shaft bending

coupling failure

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is the most likely cause of stator winding failure?

overloading

undervoltage

bad installation

underloading

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following will NOT likely cause the bearing of the motor to fail?

undervoltage

excessive lubrication

insufficient lubrication

misalignment

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How often do you have to re-grease sealed-for-life bearings of motors?

they are not re-greased

every 2000 hrs

every 3 months

every year

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the main cause of shaft misalignment?

soft foot

hard foot

club's foot

athlete's foot

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the major cause of stator winding overheating?

excessive starts

undervoltage

misalignment

soft foot

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following causes shaft overload?

damaged driven load bearing

undervoltage

excessive starts

humidity

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