NAR HPR Level 2 Certification Practice Exam
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 A2
What part of the Federal Aviation Regulations govern rocket activity?
A. Part 97
B. Part 125
C. Part 101
D. Part 95
|
|
Question A5
Which of the following is a requirement for High Power Rocket Motor User Certification [Note: Excludes NAR Jr. HPR Participation Program]:
A. The ability to understand written English instructions
B. A citizen of the United States of America
C. No felony convictions
D. A minimum of 18 years of age
|
|
Question A7
What is the maximum allowable weight for a High Power Rocket permitted per NFPA 1127?
A. 400 pounds
B. 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
C. 3069 pounds
D. 100 pounds
|
|
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 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 A16
Which of the following statements are true concerning the definition of a High Power Rocket Motor?
A. Total impulse is less than 81,920 Newton-seconds
B. The total impulse is more than 160 Newton-seconds
C. The motor must use either fiberglass or metal case materials
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 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 A22
According to NFPA 1127, the definition of a High Power Rocket is a rocket vehicle that:
A. Is propelled by one or more High Power Rocket motors
B. Is propelled by a combination of model rocket motors having an installed total impulse of more than 320 Newton-seconds or a combination of model rocket motors having more than a total of 125 grams (4.4 ounces) of propellant weight
C. Weighs more than 1500 grams (53 ounces or 3.3 pounds) with motor(s) installed
D. All of the above
|
|
Question B1
What does the "H" in the motor designation H100-5 stand for?
A. It is the first letter in the manufacturer's name
B. It indicates the total thrust of the rocket motor
C. It indicates the total power range or impulse range of the rocket motor
D. It indicates that the motor uses black powder as a propellant
|
|
Question B4
What are the units of measurement for the "100" in the motor designation H100-5?
A. Newton-seconds
B. Newtons
C. feet per second
D. Newtons per second
|
|
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. 3
C. 1
D. 4
|
|
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 C7
Except as provided in NFPA 1127 Paragraph 4.14.2(3), in no case shall the minimum launch site dimension be less than __________ the estimated altitude of the high power rocket or __________.
A. 1/4, 2500 feet
B. 1/2, 2500 feet
C. 1/2, 1500 feet
D. 1/4, 1500 feet
|
|
Question C11
What is the minimum safe distance from a high power rocket containing a single "I" motor?
A. 200 feet
B. 50 feet
C. 100 feet
D. 75 feet
|
|
Question C12
What is the minimum safe distance from a high power rocket containing three (3) "H" motors?
A. 50 feet
B. 200 feet
C. 75 feet
D. 100 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 C22
Which of the following adhesives is the best choice for motor mount construction using phenolic motor tubes?
A. Aliphatic resin based glues
B. Cyanoacrylate glues (super glue)
C. "Hot melt" adhesives
D. Slow-curing epoxy adhesives
|
|
Question C25
When clustering combinations of black powder and composite motors, which type of rocket motor should be ignited first?
A. Clusters should never mix composite and black powder motors
B. It does not matter which motors are ignited first
C. Composite rocket motors should be ignited first
D. Black powder rocket motors should be ignited first
|
|
Question C26
Why should composite motors be ignited first in a mixed composite and black powder cluster?
A. Composite motors are more difficult and take longer to ignite
B. Composite rocket motors are more powerful than black powder motors
C. Composite motors are more likely to "cato" than black powder motors
D. The exhaust products from black powder motors prevent composite motor ignition
|
|
Question C30
Which of the following safety hazards may be associated with hybrid rocket motors?
A. Corrosive materials
B. Low temperatures (frostbite)
C. High pressure gas, low temperatures (frostbite)
D. High pressure gas
|
|
Question C33
Which of the following individuals has the final authority in permitting a high power rocket to fly?
A. The rocket owner
B. The launch control officer (LCO)
C. The range safety officer (RSO)
D. The check-in officer
|
|
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 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. 10 feet
B. 50 feet
C. 75 feet
D. 30 feet
|
|
Question C39
What is the distance around a launcher for a rocket using a 3-motor cluster of J motors that must be cleared of easy to burn material, assuming the motors aren't "sparky?"
A. 30 feet
B. 10 feet
C. 75 feet
D. 50 feet
|
|
Question C43
According to NAR studies, the vast majority of unsuccessful flights fail because of:
A. Rocket motor malfunctions
B. Rocket designs that are unstable
C. Recovery system failures
D. Rockets that are structurally unsound
|
|
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 C46
When should onboard energetics and/or electronic controls be activated and when should they be inhibited?
A. The function of firing circuits and onboard energetics shall be inhibited until the high power rocket is in the launching position, than they can be activated when non-essential personal leave the pad area.
B. When the rocket is in the prep area.
C. Both "A" and "D"
D. The function of firing circuits and onboard energetics shall be inhibited prior to removing the high power rocket from the launching position, and doing so only when non-essential personal are not in the pad area
|
|
Question C47
What equipment is required at launch sites?
A. Fire suppression devices, First aid kits, and a way of communicating with everyone on the launch site
B. Fire suppression devices and First aid kits
C. First aid kits
D. Fire Suppression devices such as fire extinguishers
|
|
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. This field can only be used in calm winds for flights to the waiver altitude
D. You can fly in winds up to about 6 miles an hour, if you have the pads at the upwind edge of the field
|
|
Question C53
According to NFPA 1127, High Power Rocket motors, motor reloading kits, and pyrotechnic modules shall be stored at least __________ away from smoking, open flames, and other sources of heat.
A. 10 feet
B. 50 feet
C. 75 feet
D. 25 feet
|
|
Question C57
Twisted wire pairs in rocket wiring are considered good practice because:
A. It resists electromagnetic interference from internal and external sources
B. It reduces strain on solder joints
C. It improves the routing of wire bundles
D. It reduces resistance in wire bundles
|
|
Question C58
Black powder charges for recovery systems can be unintentionally fired by:
A. Electrostatic discharge (static electricity)
B. Electromagnetic fields, e.g. nearby radios
C. Control electronics malfunction
D. All of the above
|
|
Question C60
Which sequence below provides the highest level of range safety when launching a rocket utilizing an onboard electronically actuated recovery system?
A. Arm recovery system electronics, install igniter, touch igniter clips together, connect clips to igniter
B. Install igniter, touch igniter clips together, connect clips to igniter, arm recovery system electronics
C. Install igniter, arm recovery system electronics, touch igniter clips together, connect clips to igniter
D. None of the above
|
|
Question D2
An unstable rocket can be made stable by:
A. Adding sufficient weight to the nosecone
B. Making the rocket sufficiently shorter
C. Removing sufficient weight from the nosecone
D. Moving the fins sufficiently forward towards the nosecone
|
|
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 rocket diameter
D. Increasing the size of the aft fins
|
|
Question D9
The definition of Positive Stability in regards to a rocket is:
A. Where the center of gravity (CG) is located ahead (forward) of the center of pressure (CP)
B. Where the center of gravity (CG) and the center of pressure (CP) lie at the same locations
C. Where the center of gravity (CG) is located behind (aft) of the center of pressure (CP)
D. None of the above
|
|
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
|
|
|
|
|