CRAC Class C (2025) — Questions 71–80
U0111. May a person who possesses the operating-technical capability prescribed by the national radio management authority and holds a legally valid certificate, but has not yet been approved to establish their own amateur station, operate a transmitter at an amateur station? The answer is:
具备国家无线电管理机构规定的操作技术能力并具有法律规定 有效证明文件、但还没有获准设置自己的业余电台的人是否可 以到业余电台进行发射操作？答案是：
Exam tips · 考试提示
A certified operator (with valid capability proof) may operate another's station, using that station's 呼号 (call sign); the station's 设台人 (licensee) bears responsibility for harmful interference from improper operation. B is wrong because you may never invent your own call sign or use your name as one; C/D are wrong.
U0112. Persons who have not obtained the corresponding amateur radio station license or the corresponding operating-technical capability may, for the purpose of improving their amateur radio operating skills, conduct transmitting-operation practice on another person's lawfully established amateur station. What conditions must be observed? (Choose all that apply.)
未取得相应业余无线电台执照或者相应操作技术能力的人员， 为提高业余无线电台操作技术能力的需要，可以在他人依法设 置的业余无线电台上进行发射操作实习。应遵守的条件是什 么？
Exam tips · 考试提示
实习 (practice operation) by an uncertified person is allowed only under on-site supervision by the licensee/technical lead (A), and within the frequency/power scope of a Class B capability certificate — specifically, not exceeding the supervisor's lawful certificate scope (B, C). D is wrong: supervised practice by uncertified persons is permitted.
U0113. The legal responsibility that an amateur radio station licensee bears for their radio transmitting equipment is:
业余无线电台设置人应对其无线电发射设备担负的法定责任 为：
Exam tips · 考试提示
设备责任 (equipment responsibility): the licensee must keep the transmitter in normal working order to avoid 有害干扰 (harmful interference) to other services. B (always newest model), C (max power to override others), and D (maximize occupancy) are incorrect and contrary to good practice.
U0114. The rule that an amateur radio operator must follow when using amateur radio receiving equipment is:
业余无线电爱好者使用业余无线电收信设备应遵守的规定为：
Exam tips · 考试提示
An amateur receiver may only receive signals related to the 业余业 务 and 卫星业余业务 (amateur and amateur-satellite services). Deliberately receiving unrelated services (e.g., paging, private comms) is prohibited. B/C/D wrongly suggest unrestricted or "undetected is fine" reception.
U0115. When an amateur radio operator inadvertently receives information from non-amateur and non-amateur-satellite services, the rule to follow is:
业余无线电爱好者无意接收到非业余业务和卫星业余业务的信 息时，应遵守的规则为：
Exam tips · 考试提示
Information 无意接收 (inadvertently received) from other services must not be 传播、公布 (disseminated or published). Even sharing among hams (B, C) or assuming public availability (D) is prohibited; the rule is strict non-disclosure.
U0116. May an amateur radio station transmit signals received from broadcast stations, recordings of audio/video programs, or deliberately relay sounds from around the station?
业余无线电台是否可以发射从广播电台收到的信号、音像节目 的录音，或者故意转送电台周围的声音？
Exam tips · 考试提示
An amateur station must not transmit material unrelated to the 业 余业务/卫星业余业务 (amateur/amateur-satellite services) — broadcasting received radio/TV programs or relaying ambient sound is prohibited. B/C/D are all invalid justifications.
U0117. The state's attitude toward using amateur radio stations to publish or disseminate information that violates the law or public morality is:
国家对于利用业余无线电台从事发布、传播违反法律或者公共 道德的信息的行为的态度是：
Exam tips · 考试提示
Both illegal and public-morality-violating content are 禁止 (prohibited), not merely "not encouraged." D wrongly splits the two; the state prohibits both categories.
U0118. A taxi installs an amateur radio station and uses it to relay information about passengers; the nature of this conduct is:
出租车安装业余电台并用来传递有关载客的信息，这种行为的 性质是：
Exam tips · 考试提示
Using an amateur station for commercial purposes (e.g., a taxi dispatching fares) violates the strict ban on 谋取商业利益 (seeking commercial gain) with amateur radio. It is therefore unlawful, not merely "inconvenient" to others.
U0119. The proper attitude toward using amateur radio communications to promote amateur radio products or advance other commercial activities related to amateur radio activities is:
利用业余无线电台通信来促销业余无线电产品或者推动与业余 无线电活动有关的其他商业性活动，对这类行为的态度应该 是：
Exam tips · 考试提示
Promoting products or commercial activities over amateur radio is 禁止 (prohibited), even if it concerns amateur gear or is done by a club. B/C/D wrongly excuse commercial use.
U0120. Using your own amateur station to deliberately jam the normal communications of other amateur stations with a strong signal, or rebroadcasting music or radio programs on amateur frequencies — the nature of such conduct is:
利用自己的业余电台强信号故意压制其他业余电台的正常通 信，或者在业余无线电频率上转播音乐或广播节目，这些行为 的性质属于：
Exam tips · 考试提示
故意压制 (deliberate jamming) or retransmitting programs on amateur frequencies is a 违法行为 (unlawful act) under the ban on 阻碍其他无线电台通信 (obstructing other stations' communications). It is not merely a manners issue (B/D) nor excusable (C).