Which of the following statements regarding energy is true?
A. Kinetic energy decreases with increasing airspeed
B. Potential energy is approximately proportional to airspeed
C. Chemical Energy remains constant throughout flight
D. Kinetic energy can be traded for potential energy and
potential energy can be traded for kinetic energy
D. Kinetic energy can be traded for potential energy and
potential energy can be traded for kinetic energy
The objective in maneuvering the airplane is to manage the
energy so that:
A. Kinetic energy stays between limits (stall and placards)
B. Potential energy stays between limits (terrain and buffet
altitude)
C. Chemical energy stays above certain thresholds (not
running out of fuel)
D. All of the above
D. All of the above
What is the effect on total drag if airspeed slows below
L/DMax?
A. Drag increases because of increased parasite drag.
B. Drag decreases because of lower induced drag.
C. Drag increases because of increased induced drag.
C. Drag increases because of increased induced drag
,A jet pilot flying at L/DMax will obtain best:
A. Range
B. Endurance
C. Ride Quality
B. Endurance
When a jet aircraft is flown at the appropriate airspeed for
maximum range, which type of drag predominates?
a. Parasite
b. Induced
c. Each type of drag contributes equally
a. Parasite
While already at high speed, what happens if Mach is allowed
to increase?
a. Airflow over parts of the airplane begin to exceed the speed
of sound
b. Shock waves can cause local airflow separation
c. Characteristics such as pitch-up, pitch-down, or buffeting
may occur.
d. All of the above
d. All of the above
What is the result of a shock-induced separation of airflow
occurring symmetrically near the wing root of a swept wing
aircraft?
a. A high-speed stall and sudden pitch-up
b. Severe porpoising.
c. A severe moment or "Mach Tuck".
, c. A severe moment or "Mach Tuck".
The speed of sound generally decreases with increasing
altitude. This occurs because:
a. The air temperature decreases.
b. The air pressure decreases.
c. The composition of the air changes.
a. The air temperature decreases.
Critical Mach number can be defined as:
a. The speed at which the aircraft is traveling faster than
sound.
b. The maximum Mach number at which an aircraft may be
safely operated.
c. the speed of an aircraft in which airflow over any part of
the aircraft or structure first reaches, but doesn't exceed,
Mach 1.0
c. the speed of an aircraft in which airflow over any part of the
aircraft or structure first reaches, but doesn't exceed, Mach
1.0
Stability in the vertical axis tends to drive the sideslip angle
toward zero. The most dynamic stability about the vertical
axis on modern jet transports is from:
a. The vertical fin
b. The rudder
c. An active stability augmentation system/yaw damper
d. Pilot roll input
c. An active stability augmentation system/yaw damper Swept
wings cause a significant:
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 dennohz2000. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
