CRAC Class B (2025) — Questions 41–50

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U0040. Where an amateur radio station license needs to continue to be used after its validity period expires, an application to renew the license should be submitted to the radio management authority that made the licensing decision within which of the following periods?

业余无线电台执照有效期届满后需要继续使用的,应当在下列 期限内向作出许可决定的无线电管理机构申请更换业余无线电 台执照:

Exam tips · 考试提示

License renewal must be applied for 30 working days before expiry (期限届满30个工作日前) to the original licensing authority. The other periods (half-year/two/three months after) are wrong.

U0041. Where the particulars recorded in an amateur radio station license are to be changed, which procedure should be followed?

变更业余无线电台执照载明事项的,应当办理下列手续:

Exam tips · 考试提示

Changing recorded particulars requires promptly applying to the original licensing authority for a change (A). You may not wait until expiry (B), skip it if model/serial unchanged (C), or merely file a record (D).

U0042. When ceasing to use an amateur radio station, the license cancellation procedure should be handled with which of the following authorities?

终止使用业余无线电台的,应向下列哪个机构办理业余无线电 台执照注销手续:

Exam tips · 考试提示

When ceasing station use, cancellation is handled by the authority that made the licensing decision (作出许可决定的无线电管理机构) (A). The national authority, CRAC, or entrusted units are not the correct default.

U0043. Which of the following statements about ceasing to use an amateur radio station is correct? (Choose all that apply.)

关于终止使用业余无线电台的,下列说法正确的是:

Exam tips · 考试提示

On cessation you must promptly cancel (A) and return the license, then dismantle and properly dispose of the station/antenna within 60 working days of cancellation (B). C (6 months) and D (just return) are wrong.

U0044. Which of the following statements about amateur repeaters is INCORRECT? (Choose all that apply.)

关于业余中继台的说法下列错误的是:

Exam tips · 考试提示

The question asks for INCORRECT statements about repeaters. A is the correct definition of a 业余中继台 (receive, amplify, retransmit to extend range); therefore the incorrect ones are B (beacon description), C (attenuate/shrink range), and D (receive beacon) — marked correct as the "wrong" statements to select.

U0045. Which of the following statements about amateur beacon stations is INCORRECT? (Choose all that apply.)

关于业余信标台的说法下列错误的是:

Exam tips · 考试提示

The question asks for INCORRECT statements about beacon stations. A is the correct definition of a 业余信标台 (transmit-only beacon to verify propagation); the incorrect ones are B (receive beacon), C (repeater function), and D (attenuate/shrink) — marked as the "wrong" statements to select.

U0046. Which of the following statements about amateur repeaters are correct? (Choose all that apply.)

关于业余中继台哪下列哪些选项正确:

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Correct repeater principles: equal service to all in coverage (A) and resource-sharing/intensive site layout (B). C (priority for applicant's team) and D (mandatory payment) violate the equal-service principle.

U0047. Which of the following statements about establishing an amateur repeater is correct? (Choose all that apply.)

关于设置业余中继台下列说法正确的是:

Exam tips · 考试提示

Establishing a repeater requires: resource-sharing site layout (A), equal service (B), published location/frequency/parameters (C), and coordination if coverage crosses administrative regions (D). All four are correct.

U0048. The establishment and technical parameters of an amateur repeater should satisfy the following key conditions:

业余中继台的设置和技术参数等应满足下列关键条件:

Exam tips · 考试提示

Repeater establishment and parameters must comply with state and local radio-management provisions (A). B (club plan), C (local only), and D (applicant's needs) are insufficient or wrong. 操作技术能力验证 Operator-Capability Verification

U0049. The organizations that may organize the Class

可以组织A类和B类业余无线电台操作技术能力验证的机构是:

Exam tips · 考试提示

Class A and Class B capability verification may be organized by the national authority and provincial/municipal authorities (A). B omits the national option; C/D are not the organizing bodies for A/B.