For each question below, click on the circle next to the correct answer. When you have finished the test, Click the 'Score My Exam' button at the bottom of the page. Good luck!!

Question A7
What is the maximum allowable weight for a High Power Rocket permitted per NFPA 1127?
A. 100 pounds
B. 3069 pounds
C. There is no limit provided the rocket weighs less than 1/3 of the average certified thrust of the motors intended to be ignited at launch
D. 400 pounds

Question A9
Which of the following characteristics does NOT meet the definition of a High Power Rocket Motor?
A. The motor uses a "composite" propellant
B. Propellant weight greater than 125 grams
C. Total impulse is more than 160 Newton-seconds
D. Average thrust greater than 80 Newtons

Question A11
A launch site is defined as containing areas for which of the following activities?
A. Launching
B. Recovery
C. Parking
D. All of the above

Question A12
A person shall fly a high power rocket only in compliance with:
A. NFPA 1127
B. Federal Aviation Administration Regulations, Part 101
C. Federal, state, and local laws, rules, regulations, statutes, and ordinances
D. All of the above

Question A13
Which of the following statements is always true concerning the definition of a hybrid rocket motor?
A. The fuel component is composed of either paper or plastic
B. The fuel is in a different physical state (solid, liquid, or gaseous) than the oxidizer
C. The oxidizer component is nitrous oxide
D. Both "A" and "C" above.

Question A14
You're attending a launch that has a thin (but see-through) cloud layer at ~3,000 feet and clear blue skies above it. Is it okay to "punch" through this cloud layer with a High Power Rocket if there's a Certificate of Waiver or Authorization (COA) granting Class 2 flights up to 6,000 feet?
A. Yes, since there is an active COA, High Power Rockets can be flown up to the 6,000 foot altitude limit
B. No, flights into any clouds are prohibited unless specifically waived by the FAA
C. Yes, as long as the cloud layer can barely be seen through and the RSO allows it
D. Both "A" and "C" above

Question A15
You are attending a launch where the sky is almost completely obscured by clouds at 5,000 feet except for a ~1,000 foot wide "hole" directly over the launch pads. Is it okay to launch a High Power Rocket to 6,000 feet if there’s a Certificate of Waiver or Authorization (COA) granting Class 2 flights up to 8,000 feet?
A. Yes, as long as the High Power Rocket stays within the cloud opening
B. No, the five-tenths coverage and horizontal visibility limitations apply
C. Yes, as long as the RSO approves the launch and the COA is active
D. Both "A" and "B" above.

Question A18
What information does FAA FAR 101.29(a) require you to provide when filing for FAA Launch Authorization?
A. Estimated number of rockets and type of propulsion (liquid or solid), fuel(s) and oxidizer(s)
B. Description of the launcher(s) planned to be used, including any airborne platform(s) and description of recovery system
C. Highest altitude, above ground level, expected to be reached, launch site latitude, longitude, and elevation, and any additional safety procedures that will be followed
D. All of the above

Question A19
Which of the following are operating limitations for Class 2 High Power Rockets per the FAA's FAR 101 Regulations?
A. At any altitude where clouds or obscuring phenomena of more than five-tenths coverage prevails
B. At any altitude where the horizontal visibility is less than five miles
C. Into any cloud
D. All of the above

Question A20
According to NFPA 1127, a High Power Rocket shall only be launched if:
A. It contains any combination of motors having 40,960 Newton-secondsof total impulse or less
B. It contains a recovery system that is designed to return all parts to the ground intact and at a landing speed which the rocket does not present a hazard
C. It utilizes an electronically actuated recovery system as either a primary or backup deployment method if the installed total impulse is greater than 2560 Newton-seconds
D. All of the above

Question B2
What does the "100" in the motor designation H100-5 stand for?
A. It is the rocket motor burn time in seconds
B. It is the manufacturer's retail price code
C. It is the average thrust in Newtons of the rocket motor
D. It is the peak thrust in pounds of the rocket motor

Question B4
What are the units of measurement for the "100" in the motor designation H100-5?
A. Newtons per second
B. feet per second
C. Newtons
D. Newton-seconds

Question B6
Assuming that each motor has the full allowable impulse, how many "H" motors have the same total impulse as a single "J" motor?
A. 2
B. 1
C. 4
D. 3

Question C1
What is the maximum launch angle, measured from vertical, for a high power rocket?
A. 10 degrees
B. 15 degrees
C. 20 degrees
D. 25 degrees

Question C5
The FAA has granted a waiver for high power rocket flight to 18000 feet for your event. Flights up to that altitude are expected. What is the minimum launch site dimension?
A. 1800 feet
B. 18,000 feet
C. 9000 feet
D. 4500 feet

Question C6
The FAA has granted a waiver for high power rocket flight to 2500 feet for your 2xN clusterpowered rocket. What are the minimum launch site dimensions?
A. 500 feet
B. 1250 feet
C. 4000 feet
D. 1500 feet

Question C8
Your launch site borders on an interstate freeway. What is the minimum distance allowable for location of a high power launch pad from the interstate freeway?
A. 750 feet
B. 5280 feet (1 mile)
C. 3000 feet
D. 1500 feet

Question C14
Which of the following igniters may be ignited by the continuity test of some launch controllers?
A. Nichrome wire
B. Flashbulbs
C. Very low current electric matches
D. Both "B" and "C" above

Question C15
In the event of a misfire how long should you wait before approaching the launch pad?
A. As soon as signs of smoke are gone
B. 15 seconds
C. 60 seconds
D. 5 minutes

Question C16
Which of the following is most likely to cause catastrophic failure of a black powder rocket motor?
A. High altitude
B. Temperature cycling
C. Vibration
D. Electromagnetic fields

Question C19
Which of the following is the preferred method for attaching fins to a high power rocket?
A. All fin mounting methods are all equally strong; it does not matter
B. "Though the wall" mounting
C. Tube surface mounting
D. "Wedge" mount

Question C20
Which of the following adhesives should not be used on rubber (or elastic) shock cord components?
A. Aliphatic resin-based (yellow) glues
B. White "Elmer's" glue
C. Slow-curing epoxy adhesives
D. Cyanoacrylate glues (super glue)

Question C21
Which of the following adhesives is most likely to be weakened under humid or wet weather conditions?
A. Slow-curing epoxy adhesives
B. Cyanoacrylate glues (super glue)
C. Aliphatic resin based glues
D. White "Elmer's" glue

Question C22
Which of the following adhesives is the best choice for motor mount construction using phenolic motor tubes?
A. Aliphatic resin based glues
B. Slow-curing epoxy adhesives
C. "Hot melt" adhesives
D. Cyanoacrylate glues (super glue)

Question C23
The centering rings provided with your high power kit are a loose fit around the phenolic motor tube. Which of the following adhesives is the best choice for a strong joint?
A. Aliphatic resin based glues
B. Cyanoacrylate glues (super glue)
C. "Hot melt" adhesives
D. Slow-curing epoxy adhesives

Question C27
If individual igniters are used for igniting a clustered model's motors, which of the following statements is typically true:
A. The launch control must have an audible as well as visual indication of igniter continuity.
B. The launch control must provide higher voltage to ignite the additional igniters
C. The launch control must use a car battery as a power source
D. The launch control must provide additional current to ignite the additional igniters

Question C29
Petroleum based lubricants should not be used with the oxygen or nitrous oxide systems used in hybrids. Why?
A. There is a risk of spontaneous ignition or explosion
B. They thicken when exposed to oxygen or nitrous oxide
C. The lubricant can promote corrosion of the metal components in the presence oxygen or nitrous oxide
D. They lose their lubricating properties when exposed to oxygen or nitrous oxide

Question C30
Which of the following safety hazards may be associated with hybrid rocket motors?
A. Low temperatures (frostbite)
B. High pressure gas, low temperatures (frostbite)
C. Corrosive materials
D. High pressure gas

Question C35
Parachute ejection systems that sense barometric pressure can malfunction during supersonic flight because:
A. Aerodynamic heating changes the values of electronic components.
B. The outside pressure distribution is not continuous around the model.
C. Static discharges will "zap" sensitive electronic components.
D. Both answers "A" and "B" are correct.

Question C37
Your payload section, with heavy payload, separated from your model immediately after motor burnout. What might be the cause?
A. The center of pressure at burnout was behind the center of gravity for the model
B. The payload shoulder was too loose in the body tube
C. The rocket motor had a failure of its delay system
D. Both "B" and "C" are correct

Question C40
What is the distance around a launcher to clear of all combustible and burnable materials for a rocket using a single J motor that burns a titanium sponge to emit sparks?
A. 75 feet
B. 50 feet
C. 150 feet
D. 30 feet

Question C41
What is "titanium sponge?"
A. A lightweight material used in nose cones on supersonic rockets
B. An ingredient used in some rocket motors that causes them to eject sparks in the exhaust
C. An effective cleaning tool for high power rocket motor casings
D. A substitute for ejection wadding

Question C48
The Range Safety Officer (RSO) is concerned about your High Power Rocket's stability. Which of the following can be applied to determine the model's stability?
A. Fly a sub-scale, model rocket version of the actual model
B. Perform manual calculations to determine the rocket's Center of Pressure (CP) location and verify the prelaunch Center of Gravity (CG) location
C. Provide simulation data showing the rocket's Center of Pressure (CP) location and prelaunch Center of Gravity (CG) locations
D. All of the above

Question C50
Your field is 1500 x 1500 feet, and your FAA waiver is 3000 feet AGL. If you use parachutes sized to bring your rocket down at 20 feet per second, what is the maximum wind you can fly in for rockets that fly to the waiver altitude?
A. You can fly at 15 mph, if you have the pads at the upwind edge of the field, tilt into the wind and the rocket flies vertically
B. You are limited only by the HPR maximum wind of 20 miles per hour
C. You can fly in winds up to about 6 miles an hour, if you have the pads at the upwind edge of the field
D. This field can only be used in calm winds for flights to the waiver altitude

Question C52
According to NFPA 1127, which of the following are prohibited activities for participants prepping or launching high power rockets and for spectators in the prepping areas?
A. Consumption of alcohol
B. Use of medication that could affect judgment, movement, or stability
C. Both "A" and "B" above
D. None of the above

Question C56
An electronically actuated recovery system, as either a primary or backup deployment method, is required if the installed total impulse exceeds:
A. 1280 N-sec
B. 2560 N-sec
C. 5120 N-sec
D. 10240 N-sec

Question C57
Twisted wire pairs in rocket wiring are considered good practice because:
A. It reduces resistance in wire bundles
B. It reduces strain on solder joints
C. It resists electromagnetic interference from internal and external sources
D. It improves the routing of wire bundles

Question D3
Rocket stability can be estimated by:
A. Determining the relative positions of the center of pressure and center of gravity
B. Stability cannot be estimated before a test flight.
C. "Cardboard cutout" method
D. Center of pressure "Barrowman" equations

Question D4
A rocket's center of pressure can be estimated by:
A. The "Barrowman" method
B. Finding the point where the model balances
C. "Cardboard cutout" method
D. Both "A" and "C" above

Question D5
An unstable rocket can usually be made more stable by:
A. Using a larger, heavier rocket motor
B. Using a shorter nosecone
C. Increasing the size of the aft fins
D. Increasing the rocket diameter

Question E1
What is the airspeed velocity of an unladen swallow?
A. Mach 1
B. African or European?
C. c
D. 1 furlong per fortnight