Operating Firearm Actions Flashcards
7 cards from real CRFSC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Operating Firearm Actions flashcards as text
What is the safest way to open the action of a semi-automatic pistol to verify it is unloaded?
Answer: Remove the magazine, then retract and lock the slide open
Removing the magazine first prevents new rounds from feeding, then locking the slide back allows a full visual and physical inspection of the chamber.
In a break-action double-barreled shotgun, what retains the barrels in the closed position during firing?
Answer: The top lever and underlug locking mechanism
The top lever engages locking bolts against the underlug (or cross-bolt) on the barrel assembly, securely holding the breech closed under firing pressure.
What action type uses a rotating cylinder to sequentially present cartridges to a fixed barrel?
Answer: Revolver action
The revolver action uses a rotating cylinder where each chamber aligns with the barrel in turn, either manually (single-action) or by trigger pull (double-action).
When a semi-automatic firearm is 'in battery,' this means:
Answer: The bolt or slide is fully forward and the firearm is ready to fire
'In battery' specifically describes the condition where the bolt or slide has returned fully forward, closing the breech so the firearm can fire safely.
What is the role of the recoil spring in a blowback-operated semi-automatic pistol?
Answer: It slows and returns the slide forward after each shot
In blowback designs, rearward pressure from the fired cartridge pushes the slide back against the recoil spring, which then drives the slide forward to chamber the next round.
A single-action revolver must be manually cocked before each shot because:
Answer: The trigger only releases the hammer; it cannot cock it
In a single-action revolver, the trigger performs only one action — releasing the hammer — so the shooter must manually thumb-cock the hammer for each shot.
What is 'headspace' in the context of firearm actions?
Answer: The distance between the bolt face and the chamber datum line
Headspace is the critical measurement from the bolt face to the point in the chamber where a cartridge is stopped, ensuring the case is properly supported during firing.