and Answers All Verified.
After a bullet leaves the rifle barrel, what two forces act on the bullet's trajectory?
-Gravity and the force due to the air flow around the bullet.
- Wind velocity and ambient temperature
- Heat and wind pressure.
- The breech pressure and gravity. - Answer Gravity and the force due to the air flow around
the bullet.
A bullet's reaction to wind depends on what two factors?
-Temperature and barometric pressure
-Altitude and ambient temperature
-Speed and direction of the wind
-Altitude and barometric pressure - Answer Speed and direction of the wind
Who invented the ballistic pendulum in the year 1740?
-Tartaglia
-Galileo
-Da Vinci
-Robins - Answer Robins
The ballistic pendulum was based upon laws of mechanics formulated by:
-Robins
-Da Vinci
-Sir Isaac Newton
-Galileo - Answer Sir Isaac Newton
Ballistics deals with
-Hand-loading rimfire ammunition
-Hand-loading centerfire ammunition
-The heat-treatment of metal
-The science of moving projectiles - Answer The science of moving projectiles
When shooting downhill, the gun will shoot:
, -To the left
- High
- To the right
- Low - Answer High
What is the altitude used for most ballistics tables?
-1,000 feet
-2,000 feet
-Sea level
-500 feet - Answer Sea level
When shooting uphill, the gun will shoot
-To the left
-High
-Low
-To the right - Answer -High
What is the name of the test data, compiled in Germany in 1881 that turned out to be the basis
for ballistics tables for small arms right up to the present time?
-Hunt test data
-Krupp test data
-Sauer test data
-Sharpe test data - Answer Krupp test data
In what type of terrain are vertical winds usually encountered?
- Mountainous or hilly areas
-Flat wood lots
-Coastal areas
-Flat desert areas - Answer - Mountainous or hilly areas
The primary advantage of a Progressive press is:
- Low purchase cost
- Lower rate of assembly compared to single stage press
- Simple to set up and operate