CRAC Class A (2025) — Questions 271–280
U0270. During a contact, if you want the other station to increase its sending speed, you can send:
通联时，如果希望对方加快发报速度，我们可以发送：
Exam tips · 考试提示
QRQ means "please send faster" (PSE = please). So "PSE QRQ" requests higher speed (A). QRS = send slower; QRT = closing down; QTR = time. Only A means faster.
U0271. During a contact, if the other station asks you to increase sending speed, you can confirm by asking back. You can send:
通联时，如果对方要求加快发报速度，我们可以通过反问来确 认。此时可以发送：
Exam tips · 考试提示
To confirm "shall I send faster?", you echo the question as QRQ? (A). QRS? would ask "shall I send slower?"; QRT? "shall I close down?"; QTR? "what is the time?" — none confirm speeding up.
U0272. During a contact, if you want the other station to reduce its sending speed, you can send:
通联时，如果希望对方放慢发报速度，我们可以发送：
Exam tips · 考试提示
QRS means "please send more slowly". So "PSE QRS" requests slower sending (A). QRQ = faster; QSY = change frequency; QSL = acknowledge/confirm. Only A means slower.
U0273. During a contact, if the other station asks you to reduce sending speed, you can confirm by asking back. You can send:
通联时，如果对方要求放慢发报速度，我们可以通过反问来确 认。此时可以发送：
Exam tips · 考试提示
To confirm "shall I send slower?", echo QRS? (A). QRQ? would ask faster; QSY? asks about changing frequency; QSL? asks for confirmation — none confirm slowing down.
U0274. When ending the day's operating activity, an amateur station often sends the Q-code "QRT". Its meaning is:
结束当天的通联活动时，业余电台常会发送Q简语“QRT”。 其含义为：
Exam tips · 考试提示
QRT means "I am closing down / ceasing operation" — i.e., signing off the station (A). B is QSY (change frequency); C/D are not standard Q-code meanings. Only A is correct.
U0275. Before ending a contact, we may ask the other party whether there is any further message to convey. At this point we may send:
在结束联络之前，我们可以询问对方是否还有消息要传达。此 时可以发送：
Exam tips · 考试提示
QRU? is the Q-code meaning "Have you anything to send me? / I have no messages (nothing to send)." Asking before closing a contact whether the other party still has a message to convey is exactly the use of QRU?. QRL? asks whether the station is busy; QRB? asks about distance; QRQ? asks the other to send faster — none of these fit "do you have more to say."
U0276. When ending a contact, we can tell the other party that there is nothing further here. At this point we may send:
结束联络时，我们可以告诉对方这里已无事。此时可以发送：
Exam tips · 考试提示
QRU (statement form) means "I have no messages / nothing to send," i.e., there is nothing further here. Telling the other station "nothing here" at the close of a contact is the canonical use of QRU. QRL means busy, QRM means interference (to me), and QRN means atmospheric noise — none convey "nothing to send."
U0277. During a contact, if you wish to ask the other party to join in some amateur radio activity (e.g., "Mulan Weichang — Worked All Provinces of China"), you may use the phrase:
通联时，如希望相约对方参加某个业余无线电活动（如，"木兰 围场-通联中国之省"），可使用短句：
Exam tips · 考试提示
QRV means "Are you ready? / I am ready (to receive or to operate)." The phrasing "QRV IN WAPC?" asks whether the other station is ready to participate in the WAPC (Worked All Provinces of China) activity. QSY means change frequency, QSO means a contact, and QRT means stop transmitting — none invite someone to join an activity.
U0278. The meaning of the Q-code "QRV" is:
Q简语"QRV"的含义是：
Exam tips · 考试提示
QRV means "Are you ready? / I am ready (to receive transmission or to operate)." Option A captures this. B is QRL (busy), C is closer to QRU (I have a message), and D is QRP (reduce power) — none is QRV.
U0279. When making a call, if you did not hear the other station's call sign clearly, you may use the following phrase to ask them to repeat it:
进行呼叫时，如果没有听清对方呼号，可使用如下短句请求对 方重发：
Exam tips · 考试提示
QRZ? means "Who is calling me? / Who is calling?" When you hear a call but cannot copy the call sign, QRZ? is the standard request for the station to identify again. QRU? asks about messages, QSY? is about changing frequency, and QSA? asks about signal strength — none requests a repeat of the call sign.