Please keep the trivia focused on the game, not mapping or modding. You can see the current incarnation of the trivia bot on #et-trivia on irc.gamesurge.net
Need ET Trivia for an IRC trivia bot
Hope my answers are correct, just a couple i could think of.
What does vstr stand for? Variable String
What does cvar stand for? Client Variable
What model of tank is used in the map Fuel Depot? Churchill AVRE Demolition Tank
Which class uses the sniper rifle? Covert Ops (may confuse the hardcore RTCW fans :P)
What is the full name of the map commonly known as Radar? Wurzburg Radar
What does HUD stand for? Heads Up Display
What term is given to the area where your player appears when joining a game from the beginning or when the reinforcement timer has counted to completion? Spawnpoint
What command is used to adjust your mouses movement speed? sensitivity
How many rounds does the MG42 hold? 150
Which class did the Field Ops replace from RTCW? Lieutenant
Nope*. 
(one could also use the meanings of the prefixes like cg_ r_ cl_ etc as trivia questions. These are mostly explained here: http://www.splashdamage.com/index.php?name=pnPHPbb2&file=viewtopic&t=10047&highlight=cvar)
*console variable. There are server side cvars.
What color are fireteam messages? Yellow
Helmets reduce headshot damage by how much? 20
Which class replaced the Lieutenant from RTCW? Field Ops
Landmines are what weaponbank? 7
Ignoring the SMG, what two soldier weapons can be fired from the prone position? Flamer and MG42
Improved Dexterity (L3 Heavy Weapons) reduces the movement penalty for all heavy weapons with the exception of which one? Flamer
This one is wrong, w/o lvl 3 (or whilest attacking) the movement speed is slowed down with the factor 0.7. With lvl3 the speed isn’t reduced. So the movement penalty is reduced from 30% to 0% (when you not fire the flamer).
From function PM_CmdScale (file bg_pmove.c):
if (pm->ps->weapon == WP_FLAMETHROWER) { // trying some different balance for the FT
if( !(pm->skill[SK_HEAVY_WEAPONS] >= 3) || pm->cmd.buttons & BUTTON_ATTACK )
scale *= 0.7;
}
20%, except for garand and k43 fired in scope mode.
Q: What is the minimum damage that can be done by a headshot ?
A: 8hp. (50 * 0.2 for distance * 0.8 for helmet)
Q: what is the maximum range of unscoped bullet weaons ?
A: 8096 units.
Q: How big is a “unit”
A: approx 1 inch. (2.54 cm)
Q: True or false, the knife hits where the crosshair is on your screen ?
A: false
Q: Which weapon does the most damage with a single body shot (w/o distance modification etc.):
[ ] Luger
[ ] Thompson
[ ] Mobile MG42
A: All do the same damage: 18HP (the same as a MP40, a Colt and their silenced/akimbo counter parts do).
Q: How many mines you need to plant near a tank to destroy it instantly after it is repaired?
[ ] 3 mines
[ ] 4 mines
[ ] 5 mines
A: 5 - One mine does 250HP damage and a tank has 1200HP.
Q: How much XP do you get for building or destroying a command post?
[] 7 XP
[] 7.5 XP
[] 10 XP
A: 7.5XP
Q: What benefit(s) do you get from building a command post?
[ ] XP
[ ] You spawn faster
[ ] Your team gets the HQ-bonus
[ ] All of your team have more HP at spawn
[ ] All teammates recharge faster
[ ] You can run faster
A: Some XP, HQ-bonus, faster recharge. On some custom maps you will also spawn faster.
Q: What is the “HQ-bonus”?
A: When you near an enemy mine the message “Mines have been reported in this area.” appears.
Q: Which weapon has a higher spread: (unscoped) FG42 or Pistols (Luger resp. Colt)?
A: The pistols. The FG42 has a spread of 500, Luger and Colt have a spread of 600.
Q: How much XP do you get for repairing/destroying the tank on Fueldump after it reached the final position at the back?
[] 0 XP
[] 3 XP
[] 5 XP
[] 7.5 XP
[] 10 XP
A: Default is 7.5XP, but after the final position is reached the XP is reduced to 3. 10XP you get for repairing/destroying the tank resp. the truck on Goldrush.
Q: Mounted (stationary) MG42 emplacements:
a) Which weapons you can use to disable a stationary MG42?
b) How much HP does a stationary MG42 have (i.e. how much damage does it take before it is disabled)?
c) How much XP do you get for repairing a disabled stationary MG42?
A:
a) All weapons
b) 350 HP
c) 3 XP, but only when the enemy disabled the MG42
I can tell you’ve not done much trivia on IRC Ragnar 
I already wrote that one, with slightly different wording and the answer the other way round.
Nope I didnt checked the channel before posting, but I just tried to make the questions interesting and give some background info 
Add: And Tat’s Trivia Bot supports multiple choice questions.
That’s some good questions Ifurita and the rest of you, but be careful not to make it too technical. Having a trivia where no one can answer the first 5 questions wont be a hit. Not only can they not answer, but they have no chance of finding or understanding the answer aswell.
Q: What was the release date for Enemy Territory? mm/dd/yyyy
A: 5/29/2003 or 05/29/2003
Q: Which map(s) came with the ET test?
A: Fueldump