FREE PSD Radio Communications and Procedures Questions and Answers

Question 1

A neighboring jurisdiction requests mutual aid for a large-scale incident. Per the National Incident Management System (NIMS), which radio communication practice is most critical for ensuring successful interoperability between the different agencies?

Accepted Answer

Communicating on a designated shared, plain language channel.

Answer

NIMS guidelines strongly advocate for the use of plain language (common terminology) on shared radio channels during multi-agency incidents. This eliminates confusion that can arise from different agencies using unique 10-codes or jargon, ensuring all responders can understand critical information.

Question 2

A dispatcher needs to broadcast the license plate '5PETER-GEORGE-721' to a patrol unit. Using the standard APCO phonetic alphabet, how should this be read?

Accepted Answer

"Five Peter George Seven Two One"

Answer

The standard APCO phonetic alphabet uses specific, easily distinguishable words for each letter to avoid confusion over the radio. 'Peter' is used for 'P' and 'George' is used for 'G'. Numbers are typically read individually to ensure clarity, so '721' is read as 'Seven Two One'.

Question 3

During a radio transmission, a field unit says, 'Control, 1-Adam-12, what is your 20?' What specific information is the unit requesting from the dispatcher?

Accepted Answer

Their location

Answer

In the system of police 10-codes, '10-20' or simply '20' is a common brevity code used to ask 'What is your location?'. The dispatcher would respond with the address or cross-streets of the communications center.

Question 4

Which of the following is the primary reason for a dispatcher to maintain a calm, professional, and clear tone of voice during all radio communications?

Accepted Answer

To ensure messages are understood and reduce stress for responders in the field.

Answer

A dispatcher's calm and clear voice sets the tone for the entire response. It ensures that crucial information is transmitted accurately and can be easily understood by responders who are often operating in high-stress, noisy environments. This professional demeanor helps field units remain focused and calm.

Question 5

A dispatcher receives an urgent 'officer in trouble' call. After dispatching backup, what is the most critical subsequent radio procedure?

Accepted Answer

Maintain radio silence on that channel except for traffic directly related to the emergency.

Answer

In an officer-down or emergency situation, maintaining radio discipline is paramount. The dispatcher must keep the channel clear for the involved officer(s) and responding backup units. Non-essential traffic could prevent a critical message from being heard, jeopardizing officer safety.

(PSD) Certified Public Safety Dispatcher Practice Test

(PSD) Certified Public Safety Dispatcher Practice Test

FREE PSD Radio Communications and Procedures Questions and Answers