1) During time-outs, line judges are allowed to quickly check their cell phones.

2) If a ball is obviously out, you still are expected to call “out” and give the "out" hand signal.

3) A line judge should be positioned where he/she:

4) The rules do not require line judges or referees to clearly see a space between a line and the ball when making an "out" call.

5) In a match with line judges, what line(s) are the players responsible for calling on the serve?

6) What would a blocked view signal from a line judge look like?

7) As a player serves the ball, his foot contacts the baseline at the same time his paddle contacts the ball. This is a foot fault and the line judge should loudly call "foot fault."

8) When can a line judge replacement occur?

9) As a line judge, when you cannot clearly see if a ball lands “in” or “out,” you should:

10) During a time-out, line judges are allowed to leave the court for a restroom break.

11) The referee has the authority and responsibility to replace any line judge that does not perform to standards.

12) If a line judge observes a coaching violation they should raise their hand in a "V" above their head.

13) The use of line judges in a tournament is determined by:

14) It is okay to carry on a conversation with the person seated next to you, as long as it doesn’t distract you from your line judging duties.

15) The baseline judge, along with the referee, can call service foot faults and make line calls for the assigned baseline.

16) A line judge repeatedly sliding one hand across the palm of their hand indicates what to the referee?

17) In the picture, the server's left foot is touching the baseline when the server is starting his service motion. If he lifts his foot off the baseline just before serve contact, should the line judge call a fault?

18) If a line judge is challenged by a player, he/she should:

19) Besides watching their own line, what else should a line judge be paying attention to?

20) Depending on the circumstances, the referee has the authority to position a line judge on one side of the court or the other.

21) A referee may consult with a line judge in the case of a potential double bounce call.

22) Which line judge is responsible for the centerline on the serve?

23) Line judges should make wrong server and player out of position calls immediately when they occur.

24) If requested by the referee, line judges can assist the referee with the following calls:

25) The line judge shown is signaling:

26) In general, line judges are used for what matches:

27) At the beginning of each game and after time-outs and other breaks in the game, the referee will check the readiness of the officiating team and receive a ready signal (raised hand) from each member.

28) There are no coaching or out of position hand signals used by line judges.

29) Since line judges are not the match referee, it is okay to comment or react to a play during the game.

30) It is a fault if a wheelchair front wheel is touching the baseline or court surface when the ball is hit to make the serve. The baseline judge shall call "fault" and identify which wheel touched.

31) If a line judge makes an "out" line call that ends the rally, the referee may immediately overrule the line judge's call (without an appeal from a player) if the referee clearly saw that the ball landed "in".

32) Overruled line calls are rare if the line judge is following the standards and procedures. But, if an overrule occurs, the line judge should forget it and continue to make calls as they see them.

33) As soon as your spouse qualifies for the Gold Medal match, you should volunteer to be one of the line judges.

34) For each ball that lands out of bounds, the line judge for that designated line should:

35) It is okay to stand and applaud a good shot by either team when you are line judging.

36) The criteria for line judges and referees when making line calls are no different than those of players.

37) If a ball bounces close to the line, but the ball is not “out,” the line judge should without hesitation loudly call “in.”

38) A line judge should signal an out of position player by clasping both of their hands above their head.

39) Line judges may solicit opinions from players to determine a call.

40) Balls that land “in” routinely do not necessitate a call. However, if the ball landed close to the line and the referee and/or player(s) cast a questioning glance in the line judge's direction, the line judge should respond firmly with an “in” hand signal.