THEORY PREP MINI QUIZ #1 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
0 view 0 purchase
Course
THEORY PREP
Institution
THEORY PREP
THEORY PREP MINI QUIZ #1 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++
What are the TWO main functions of a ballast in a fluorescent light fitting?
Improve power factor.
Provide a starting voltage.
Limit current in the circuit.
Increase fluorescent light efficiency. ...
THEORY PREP MINI QUIZ #1 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS GRADED A++
What are the TWO main functions of a ballast in a fluorescent light fitting?
Improve power factor. ❌
Provide a starting voltage. ✅
Limit current in the circuit. ✅
Increase fluorescent light efficiency. ❌
State the minimum INSULATION RESISTANCE of an electrical installation that DOES NOT contain MIMS
heating elements.
50 M Ohms ❌
1 M Ohm ✅
0.01 M Ohms ❌
Infinity ❌
, What does testing of electrical means mean ?
Testing of electrical works means the carrying out of CHECKING PROCEDURES with or without TEST
INSTRUMENTS in order to prove that it's safer and has been WIRED CORRECTLY.
State the formula for calculating the frequency of an alternator.
What does the term DISCRIMINATION mean as applied to protective devices?
The protective devices closes to the fault will operate first ✅
The KA rating of the protective device ❌
The type of protective device ❌
The current rating of the protective device ❌
What is the relationship between the available torque at a given speed and the voltage at an induction
motor terminals?
Torque is equal to the output rating of the motor ❌
Torque is proportional to the rotor speed ❌
Torque is equal to the current rating of the motor ❌
Torque is proportional to voltage squared ✅
Definite the term CLEARANCE TIME.
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 NurseAdvocate. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.