NCCER electrical Level 2 Module 2 Verified Guide
1. What voltage threshold requires guarding for exposed live parts? - Exposed live parts must be guarded if they operate at 50V or more between terminals.
2. Which type of equipment is most likely to utilize dynamic braking? - Forklifts often...
NCCER electrical Level 2 Module 2 Verified Guide 1. What voltage threshold requires guarding for exposed live parts? - Exposed live parts must be guarded if they operate at 50V or more between terminals . 2. Which type of equipment is most likely to utilize dynamic braking? - Forklifts often use dynamic braking. 3. At startup, what percentage of its full -load torque does a DC series motor generate? - A DC series motor develops 500% of its full -load torque at sta rtup. 4. What factor determines the speed of an AC motor with a fixed number of poles? - The speed is determined by the motor's frequency . 5. Which type of motor is preferred for applications needing high starting torque along with speed control? - A compound motor is used where high starting torque and speed control are necessary. 6. What is the synchronous speed of a four -pole, 60Hz induction motor? - It operates at a synchronous speed of 1,800 rpm . 7. How can slip in an induction motor be defined? - Slip is described as the difference between the synchronous speed and the rotor speed . 8. Which cla ss of motors operates on the principle of a rotating magnetic field? - Induction motors operate based on this principle. 9. What does horsepower measure regarding a motor? - It is used to rate the output capacity of a motor .
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller bestscores1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.71. You're not tied to anything after your purchase.
