Electrical Wiring Interconnect System (EWIS) Exam Questions With Verified Answers.
0 view 0 purchase
Course
Electrical Wiring
Institution
Electrical Wiring
Electrical Wiring Interconnect System
(EWIS) Exam Questions With Verified
Answers.
What is EWIS? - answerIt is any wire, wiring device or termination device installed in any area of
aircraft for the purpose of transmitting electrical energy between two or more intended termination
points.
Wha...
Electrical Wiring Interconnect System
(EWIS) Exam Questions With Verified
Answers.
What is EWIS? - answer✔It is any wire, wiring device or termination device installed in any area of
aircraft for the purpose of transmitting electrical energy between two or more intended termination
points.
What are the things EWIS does not include? - answer✔It does not include electrical equipment for
testing procedures, portable electrical devices not part of airplane's type design and fibre optics.
What are the things EWIS does include? - answer✔Wires, cables, bus bars, connectors, clamps, electrical
grounding and bonding devices, electrical splices, wire insulation, labels, pressure seals.
What are the two fundamental properties of insulation materials? - answer✔Insulation resistance and
dielectric strength.
What is insulation resistance? - answer✔It is the resistance to current leakage over and through the
surface of insulation.
Which device is used to measure insulation resistance? - answer✔A megohm-meter insulation tester.
This device does not damage the insulation.
What is dielectric strength? - answer✔It is the ability of the insulator to withstand potential difference
and is expressed in terms of the voltage at which the insulation fails.
How are the maximum dielectric strength values measured? - answer✔By raising the voltage of a test
sample until the insulation breaks down.
Which type of insulation materials are no longer used for new aircraft designs? - answer✔PVC and
nylon.
What are the substances used to make the insulation materials for new aircraft designs? -
answer✔Teflon, Kapton, PTFE.
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 Thebright. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
