NAR HPR Level 2 Certification Practice Exam

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Question A2
What part of the Federal Aviation Regulations govern rocket activity?
A. Part 125
B. Part 95
C. Part 101
D. Part 97


Question A3
What is the maximum launch weight allowable for a rocket which does not require FAA waiver?
A. 4 ounces (113 grams)
B. 3.3 pounds (1500 grams)
C. 1 pound (453 grams)
D. 4.4 ounces (125 grams)


Question A4
What is the maximum propellant weight allowable for a rocket which does not require an FAA waiver?
A. 4 ounces (113 grams)
B. 1 pound (453 grams)
C. 3.3 pounds (1500 grams)
D. 4.4 ounces (125 grams)


Question A7
Which of the following is a requirement for high power certification [Note: Excludes NAR Jr. HPR program]:
A. A citizen of the United States of America
B. A minimum of 18 years of age
C. No felony convictions
D. The ability to understand written English instructions


Question A9
What is the maximum allowable weight for a high power rocket permitted per NFPA 1127?
A. 400 pounds
B. 100 pounds
C. 3069 pounds
D. 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


Question A11
Which of the following characteristics does NOT meet the definition of a High Power Rocket Motor?
A. Propellant weight greater than 125 grams
B. Total impulse is more than 160 Newton-seconds
C. The motor uses a "composite" propellant
D. Average thrust greater than 80 Newtons


Question A14
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 A15
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 A19
A certified individual wants to purchase a "L" motor reloadable casing at a launch. Which of the following is true?
A. He must use the reload kit on the same day as purchase
B. He does not require an Explosives User's Permit
C. He must pay in advance for the motor purchase
D. He must possess an Explosives User's Permit


Question A21
What does FAA FAR 101.29 require you to provide specifications on in filing an FAA waiver?
A. Estimated number of rockets
B. Type of propulsion (liquid or solid), fuel(s) and oxidizer(s)
C. Description of the launcher(s) planned to be used, including any airborne platform(s)
D. Description of recovery system
E. Highest altitude, above ground level, expected to be reached,
F. Launch site latitude, longitude, and elevation
G. Any additional safety procedures that will be followed
H. All the above


Question B3
According to NFPA, in which of the following locations can a Type 4 magazine be permitted, assuming the authority having jurisdiction and the BATF approve?
A. In the utility or laundry room of a multi-family residence
B. Anywhere inside the house at least 10 feet away from flame producing appliances (stove, water heater, etc.)
C. In the bedroom closet for a non-smoker resident
D. In the attached garage of a single family residence


Question C2
What is the maximum wind velocity allowable for launch operations?
A. 15 miles per hour
B. 25 miles per hour
C. 20 miles per hour
D. 30 miles per hour


Question C4
You plan to break the altitude record for H motors with a flight to 10,900 feet. You have a field that is 6000 feet by 6000 feet. You have an FAA waiver up to 12,000 feet. Assuming no public highways or occupied buildings are in the area, what is the minimum distance between the launch site boundary and the launcher for an H-powered altitude record attempt?
A. The launcher may be located anywhere on the launch site to compensate for wind.
B. 3000 feet
C. 1500 feet
D. 100 feet


Question C7
In no case* shall the minimum launch site dimension be less than __________ the estimated altitude of the high power rocket or __________.
A. 1/4, 1500 feet
B. 1/2, 2500 feet
C. 1/4, 2500 feet
D. 1/2, 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. 5280 feet (1 mile)
B. 1500 feet
C. 750 feet
D. 3000 feet


Question C9
A farm owner offers you his farm for a launch site. His house is located in the middle of the farm, which is two (2) miles square. What is the minimum distance allowable for location of a high power launch pad from the owner's house, assuming it is occupied?
A. 3000 feet
B. 750 feet
C. 1500 feet
D. You cannot launch unless the house is empty


Question C10
A farm owner offers you his farm for a launch site. His house is located in the middle of the farm, which is one quarter (1/4) mile by one quarter (1/4) mile square. Assuming you can get an FAA waiver for 2500 feet, can you conduct a high power launch from this farm?
A. A) Yes
B. C) Yes, but the house has to be empty
C. B) Yes, but the pads have to be the minimum personnel distance from the edge of the field.
D. D) No


Question C13
What is the minimum safe distance from a high power rocket containing two (2) "K" motors?
A. 50 feet
B. 300 feet
C. 100 feet
D. 500 feet


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


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. Cyanoacrylate glues (super glue)
C. White "Elmer's" glue
D. Slow-curing epoxy adhesives


Question C34
Which of the following individuals has the ultimate responsibility to ensure that the rocket was built in a safe manner?
A. The launch control officer (LCO)
B. The safety monitor (range safety officer or RSO)
C. The rocket owner/builder
D. All of the above


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 C38
What is the distance around a launcher for a "J" powered model that must be cleared of easy to burn material, assuming the motor isn't "sparky?"
A. 50 feet
B. 75 feet
C. 30 feet
D. 10 feet


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. 30 feet
B. 75 feet
C. 150 feet
D. 50 feet


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


Question C42
Consequences of inadequate motor retention can include:
A. The motor being ejected at apogee instead of the parachute, resulting in two falling objects
B. The motor being ejected from a cluster, and flying on its own, under power
C. The motor flying through the rocket, destroying it
D. All of the above


Question C44
The kinetic energy of a descending rocket is a function of:
A. Its mass times its velocity
B. Its mass
C. Its velocity
D. Its mass times the square of its velocity


Question C45
You have an excellent flying field, except that when the winds are from the northwest at over 10 mph, rockets often drift into neighboring fields where you don't have permission to fly. Your alternatives include:
A. Limit flights to lower altitudes so rockets stay on the field
B. Move the launch pad closer to the NW edge of the field, provided there are no roads or houses within 1500 feet
C. Don't fly on days with problematic winds
D. All of the above


Question C48
You have an unproven design for a high power rocket. Which of the following is NOT an acceptable means to ensure that it is safe to fly?
A. Fly it as a "heads up" flight on the first flight
B. Perform a swing test
C. Use a simulation program
D. Fly a smaller (non-HPR) scale model


Question C49
Your high-power rocket lands in a power line. Which of the following is true?
A. You can retrieve it if part of it is already on the ground
B. You can retrieve it if you have a non-conductive tool, such as a "hot-stick"
C. You can retrieve it if the power line is on a wooden (not metal) pole
D. You must leave it alone and you must call the power company


Question C52
Which of the following is not a required feature of a rocket motor ignition system?
A. The system is electrically operated
B. A removable interlock device is in series with the launch switch
C. An audible or visual indicator shows continuity through the rocket motor igniter
D. The launching switch will return to the "off" position when released


Question D1
For a rocket to be stable which of the following statements is true?
A. The length of the body tube must be at least 5 times the model diameter
B. The center of pressure (CP) must be behind the center of gravity (CG)
C. The rocket must have fins
D. The center of pressure (CP) must be in front of the center of gravity (CG)


Question D2
An unstable rocket can be made stable by:
A. Removing sufficient weight from the nosecone
B. Making the rocket sufficiently shorter
C. Adding sufficient weight to the nosecone
D. Moving the fins sufficiently forward towards the nosecone


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 E5
What is the maximum total impulse for a "J" rocket motor?
A. 640.00 Newton-seconds
B. 320.00 Newton-seconds
C. 2560.00 Newton-seconds
D. 1280.00 Newton-seconds


Question E7
You have an H64-8 rocket motor which has been certified to have a total impulse of 320.00 Newton seconds. What is the approximate burn time for this motor?
A. 8 seconds
B. 3 seconds
C. 5 seconds
D. 10 seconds


Question E8
The manufacturer's test data shows a total impulse of 690 Newton-seconds for your motor. What impulse class does your motor represent?
A. "H"
B. "I"
C. "K"
D. "J"


Question F1
What is the airspeed velocity of an unladen swallow?
A. Mach 1
B. African or European?
C. c
D. 1 furlong per fortnight