PROPULSION SYSTEMS CHAPTER 22 QUESTIONS AND ANSWERS

To use it in its pure form as an _____, oxygen must be _____ until it becomes a
_____ - ANSWER Oxidizer, chilled, liquid

A _____ burn rate design was used in the Space Shuttle's solid rocket boosters
to provide maximum thrust in the first few seconds of launch - ANSWER
Regressive

Generally, _____ propellants require more heat for ignition and react more
slowly than _____ propellants - ANSWER Mono-, bi-

The majority of liquid-propellant rockets use the _____ propellant arrangement
- ANSWER Bi-propellant

_____ is usually associated with _____ propellants - ANSWER Either (motor,
solid) or (engine, liquid)

Solid propellants are sometimes called _____ explosives - ANSWER Slow

Rust and corrosion, a burning fire and an explosion are all examples of _____,
the combination of _____ with _____ - ANSWER Oxidation, oxygen, another
substance

The propellant substance is molded into its motor and casing as a single solid
mass called _____ - ANSWER Grain

_____ is the science concerned with the production of low temperatures and the
effects of those temperatures on matter - ANSWER Cryogenics

Bi-propellants are two types- _____ (non-self-igniting) and _____ (self-
igniting) - ANSWER Nonhypergolic, hypergolic

A _____ _____, consisting of two propellants _____ opened by a single piston,
operates through a _____, causing both fuel and oxidizer to enter the _____ at