ROCKET PROPULSION EXAM 1 WITH
QUESTIONS AND ANSWERS 100%
VERIFIED
How many project homeworks are planned for this semester? - ANSWER✔✔✨---4
you and your project partner will get the same grade on the final exam - ANSWER✔✔✨---true
late homework is deducted at 10% per minute - ANSWER✔✔✨---false
Readers of the text are expected to have a good working knowledge of ______ and the principles of
______ in addition to a background in ______ at least to the college freshman level -
ANSWER✔✔✨---thermodynamics,fluid flow,chemistry
_______ was a russian schoolteacher and mathematician who developed much of the theory for the
requirements for orbiting the Earth and pursuing spaceflight. he is credited with the derivation for what
we call "the rocket equation" - ANSWER✔✔✨---Tsiolkovsky
In April 1958, President Eisenhower signed a declaration creating the _________ and the civilian space
program was born - ANSWER✔✔✨---National Aeronautics and Space Administration (NASA)
Dividing the payload to Low Earth Orbit weight by the gross liftoff weight of typical launch vehicle gives
a payload fraction number typically less than _______ - ANSWER✔✔✨---2%
Most large liquid rocket engines are ________ due to the enormous amounts of pressure gas which
would be required to displace the large quantity of propellant - ANSWER✔✔✨---pump-fed
, Typically, the weight or structural efficiency of a rocket propulsion system is prescribed in terms of a
parameter called the propellant mass fraction. The propellant mass fraction is __ - ANSWER✔✔✨---
The mass of the propellant divided by the overall mass of the loaded system
Given an ideal rocket with the following parameters F = 1840 lbf, mass flow = 10.5 lbm/s. Find the
specific impulse (Isp) in units of seconds - ANSWER✔✔✨---175.24
_____ and ________ aspects of a rocket are not considered in detail in this course, but ________ issues
and sizing considerations are discussed mainly at the conceptual level - ANSWER✔✔✨---control,
structural, structural
______ rockets were developed in a variety of sizes ranging from 6 to 300 lb and were employed in the
Napoleonic wars an the war of 1812 - ANSWER✔✔✨---congreve
the earliest rockets date back to chinese "______" - ANSWER✔✔✨---fire-arrows
which of the following famous rocket pioneers does not have a mustache in the pictures shown in the
textbook? - ANSWER✔✔✨---Dr. Werner Von Braun
Some propellants can decompose into high temperature gases upon contact with a suitable catalyst
material. the type of propellants are termed - ANSWER✔✔✨---monopropellants
In a _______ rocket, energy from a nuclear process is used to heat a working fluid (usually ________) to
high temperatures and the hot gases are expanded through a typical de Laval nozzle -
ANSWER✔✔✨---nuclear thermal, hydrogen
Given the following for an Ideal Rocket:
mass flow = 9 lbm/s
exit velocity = 6000 ft/s
exit pressure = 10 lbf/in^2
ambient pressure = 14.7 lbf/in^2
nozzle exit area = 5 in^2
QUESTIONS AND ANSWERS 100%
VERIFIED
How many project homeworks are planned for this semester? - ANSWER✔✔✨---4
you and your project partner will get the same grade on the final exam - ANSWER✔✔✨---true
late homework is deducted at 10% per minute - ANSWER✔✔✨---false
Readers of the text are expected to have a good working knowledge of ______ and the principles of
______ in addition to a background in ______ at least to the college freshman level -
ANSWER✔✔✨---thermodynamics,fluid flow,chemistry
_______ was a russian schoolteacher and mathematician who developed much of the theory for the
requirements for orbiting the Earth and pursuing spaceflight. he is credited with the derivation for what
we call "the rocket equation" - ANSWER✔✔✨---Tsiolkovsky
In April 1958, President Eisenhower signed a declaration creating the _________ and the civilian space
program was born - ANSWER✔✔✨---National Aeronautics and Space Administration (NASA)
Dividing the payload to Low Earth Orbit weight by the gross liftoff weight of typical launch vehicle gives
a payload fraction number typically less than _______ - ANSWER✔✔✨---2%
Most large liquid rocket engines are ________ due to the enormous amounts of pressure gas which
would be required to displace the large quantity of propellant - ANSWER✔✔✨---pump-fed
, Typically, the weight or structural efficiency of a rocket propulsion system is prescribed in terms of a
parameter called the propellant mass fraction. The propellant mass fraction is __ - ANSWER✔✔✨---
The mass of the propellant divided by the overall mass of the loaded system
Given an ideal rocket with the following parameters F = 1840 lbf, mass flow = 10.5 lbm/s. Find the
specific impulse (Isp) in units of seconds - ANSWER✔✔✨---175.24
_____ and ________ aspects of a rocket are not considered in detail in this course, but ________ issues
and sizing considerations are discussed mainly at the conceptual level - ANSWER✔✔✨---control,
structural, structural
______ rockets were developed in a variety of sizes ranging from 6 to 300 lb and were employed in the
Napoleonic wars an the war of 1812 - ANSWER✔✔✨---congreve
the earliest rockets date back to chinese "______" - ANSWER✔✔✨---fire-arrows
which of the following famous rocket pioneers does not have a mustache in the pictures shown in the
textbook? - ANSWER✔✔✨---Dr. Werner Von Braun
Some propellants can decompose into high temperature gases upon contact with a suitable catalyst
material. the type of propellants are termed - ANSWER✔✔✨---monopropellants
In a _______ rocket, energy from a nuclear process is used to heat a working fluid (usually ________) to
high temperatures and the hot gases are expanded through a typical de Laval nozzle -
ANSWER✔✔✨---nuclear thermal, hydrogen
Given the following for an Ideal Rocket:
mass flow = 9 lbm/s
exit velocity = 6000 ft/s
exit pressure = 10 lbf/in^2
ambient pressure = 14.7 lbf/in^2
nozzle exit area = 5 in^2
