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Q-1.1
Why should a drive isolation transformer be used ahead of a variable speed drive?

 

 

 

 

 

 

 

 

 

Q-2.2
Why should an energy efficient motor be used with an AC variable frequency PWM drive?

 

 

 

 

 

 

 

 

 

Q-3.3
When do you use a helical gear versus a worm gear reducer and why?

 

 

 

 

 

 

 

 

Q-4.4
What is the difference between dynamic braking for an AC variable speed drive and dynamic braking for a DC variable speed drive?

 

 

 

 

 

 

 

Q-5.5
Why do 3VX or AX belts carry more HP than 3V or A belts?

 

 

 

 

 

 

 

 

Q-6.6
How often should roller chain be lubed?

 

 

 

 

 

 

 

 

 

 

Q-7.7
When selecting a proximity sensor, how do you choose between an inductive type or capacitive type?

 

 

 

 

 

 

 

Q-8.8
When is roller chain "worn out" and how do you measure wear?

 

 

 

 

 

 

 

 

 

Q-9.9
What grease should I use in electrical motors?

 

 

 

 

 

 

 

 

Q-10.10
How can you minimize the size of major drive components such as the motor and its reducer while maximizing output torque capacity?

 

 

 

 

 

 

 

 

 

Q-11.11
In what gearbox application would it be advantageous to use a synthetic lubricant?

 

 

 

 

 

 

 

 

Q-12.12
How often should chain and sprockets be inspected to increase chain life and reduce costly breakdowns?