What Is a Technical Foul
A technical foul is a penalty called when a player, coach, or team official violates NBA rules in a way that is not related to normal game play. Unlike personal fouls, technical fouls do not involve physical contact during play. They are meant to maintain order, sportsmanship, and respect for officials throughout the game.
How Technical Fouls Lead to Ejection
In the NBA, a player receives an automatic ejection after being called for two technical fouls during the same game. This means the first technical foul is a warning, and the second technical foul results in removal from the game. Coaches can also be ejected after two technical fouls. In extreme cases, a referee can eject a player immediately for a single flagrant technical foul if the behavior is particularly disrespectful or offensive.
Common Reasons for Technical Fouls
Technical fouls are called for various unsportsmanlike behaviors including arguing with or disrespecting officials, using profanity or obscene gestures, taunting opponents, excessive or prolonged celebrations after a play, hanging on the rim in an unsportsmanlike manner, throwing objects, or deliberately delaying the game. Each action violates the NBA's standards for player conduct and respect.
Consequences of Technical Fouls
When a technical foul is called, the opposing team is awarded one free throw, which can be taken by any player on the court at that moment. After the free throw, the team that was fouled receives possession of the ball. This can give teams an advantage, making technical fouls strategically important to avoid during close games.
Flagrant Technicals and Immediate Ejection
In rare cases, a referee can eject a player or coach immediately with just one technical foul if the behavior is deemed flagrant. This typically happens for extremely disrespectful behavior toward officials, such as pushing or shoving a referee, or using severe profanity and personal insults. This is considered a serious violation of NBA conduct rules.
Fines and Suspensions
Beyond ejection from the game, the NBA can issue additional penalties for technical fouls. Players and coaches may receive fines from the league for repeated technical fouls or particularly egregious behavior. In severe cases or for players with multiple technicals over a season, the NBA may issue suspension from future games. 
Answer