No
One rule is that once you start the bowl, you can't stop in the middle of it. Another one is that you have to bowl behind the crease or it will be a no ball.
If an umpire calls "first violation" it means there was more than one violation that a team made. If a player first contacts another player then bats the ball out, the first violation would be contact because that is the first rule that was broken.
I'm sorry, you will need to be a bit more specific. Violation still means what it does as in regular English, so the breaking of a rule or code. You will have to give the specific violation in order to receive a more precise answer.
They would first warn you, depending what the violation was for, or they could suspend you.
Physical safeguards are
There are many like the shotclock violation, 8second rule
all the above
all the above
Exception to the Rule was created on 1997-04-05.
Established appropriate physical and technical safeguards
all the above