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Question 1 of 13
The B.A.R. (Browning Automatic Rifle) is an air cooled, gas operated, fully automatic rifle that utilizes a 20 round magazine to fire .30 caliber cartridges from an open bolt.
Question 2 of 13
Which one of the statements below best describes the operation of the Browning 1918 rifle?
The same forces caused from the expanding gas of the fired cartridge that pushes the bullet down and out of the muzzle of the barrel will also send the cartridge case rearward, pushing on the bolt face, which in turn pushes the slide rearward, thus extracting and ejecting the empty case from the weapon.
The expanding gases from the fired case pushes the bullet down and out of the barrel. Before the bullet leaves the muzzle of the barrel, some of these gases are channeled into a chamber, causing the gases to push on a piston rod that is connected to the slide, which makes the slide move rearward, thus extracting and ejecting the empty cartridge case.
The expanding gases from the fired cartridge push both the barrel and slide assembly, which are temporarily locked together, rearward a short distance until the barrel unlocks from the slide assembly, at which time the empty case is then extracted and ejected through the ejection port of the rifle.
Question 3 of 13
What returns the bolt assembly of a B.A.R. back to it forward position after the gun has been fired?
Question 4 of 13
What part of a B.A.R. acts as a safety feature that blocks the trigger from being pulled rearward?
Question 5 of 13
When does primary extraction begin on a B.A.R.?
Question 6 of 13
What part retracts the firing pin from the bolt face after the B.A.R. has been fired?
Question 7 of 13
After the first shot has been fired and the trigger continues to be held rearward, when the Browning 1918A2 rifle is set to fire in full rate auto mode (not the slow rate of fire), what prevents the sear release from being hit by the sear to allow continual fire?
Question 8 of 13
What does the center leaf of the sear spring control?
Question 9 of 13
After the first shot has been fired and the trigger continues to be held rearward, when the Browning 1918A2 rifle is set to fire in its slow rate of fire mode, what trips the sear (moves the sear out of its engagement with the sear notch in the slide) in order to fire the gun again?
Question 10 of 13
Does the bolt/slide assembly lock to the rear on a B.A.R. after the last shot is fired and the magazine is empty?
Question 11 of 13
On the semi-automatic Ohio Ordnance B.A.R., why are there two pins holding the trigger housing in place in the receiver?
Question 12 of 13
The Ohio Ordnance B.A.R. utilizes a hammer spring to power the hammer.
Question 13 of 13
How many slave pins should be used to disassemble and reassembly an Ohio Ordnance B.A.R.’s trigger group?