Exam (elaborations)
AVAM 3104 T11 Final Exam questions well answered to pass
- Course
- Institution
AVAM 3104 T11 Final Exam questions well answered to pass
[Show more]
Content preview
AVAM 3104 T11 Final Exam questionswell answered to pass
How were early engines mounted? - correct answer ✔✔Vertically
What challenges came with engines being vertically mounted - correct answer ✔✔Mods to lubrication
systems Had to be relocated (became gravity fed) Increased power requirements Mods to engine cooling
systems
What is a flywheel? - correct answer ✔✔mechanical device that stores rotational energy
Disadvantages of increased power requirements? - correct answer ✔✔Shortened life, More wear and
tear to engine
Why does the rotor RPM need to remain constant? - correct answer ✔✔Rotor pitch is used to control
the helicopter, a means to control the engine RPM was needed Always apply more power whenever
pitch is increased
What did helicopters with reciprocating engines use for anti-icing? - correct answer ✔✔Carburetor heat
What are transient RPM ranges? - correct answer ✔✔To prevent failure due to vibrations
Do we need cooling for radial engines? - correct answer ✔✔Yes
What is done to cooling fans before installation? - correct answer ✔✔Statically balanced
How is the cooling fan driven on a hiller 12? - correct answer ✔✔Splined, 90º gearbox
, What were maintenance problems with recip. Engines on helicopters? - correct answer ✔✔Location of
accessories Unable to easily rotate crankshaft special tools (quills) were made
The correlation box system provides? - correct answer ✔✔Means of increasing or decreasing throttle
opening as collective is raised/lowered
What is the correlation box used for? (reduces pilot workload) - correct answer ✔✔Eliminate need for
pilot to twist grip for collective pitch changes
What is used to set throttle for different pitch angles? - correct answer ✔✔Cam follower moving in slot
What is a cam box? - correct answer ✔✔Transforms the push-pull movements to rotary movements
Attached to the carburetor by linkage
What is an irregular slot? - correct answer ✔✔Represents various power settings of the engine at
different blade pitch setting
What must be done after replacing any linkage in a throttle correlation system? - correct answer
✔✔Rigging check of the throttle must be done
What is a precaution when we are rigging the throttle? - correct answer ✔✔ENSURE that the collective is
rigged first before throttle can be rigged
What is done after rigging? - correct answer ✔✔flight/operational check
What is meant be "flat rated" (temperature) - correct answer ✔✔Given horsepower may be reached at a
given temperature More power on cold day than on hot day (hotter = less air density = less power)
What is meant by "torque limited" (transmission is torque limited) - correct answer ✔✔Amount of
power that the engine may deliver to the transmission Engine produces more power than the
transmission can handle
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 BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75057 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now