PSD Emergency Call Handling & Communication Protocols 3

Question 1

Which radio communication practice ensures the receiving unit has correctly understood the transmitted message?

Accepted Answer

Requesting a read-back or confirmation from the receiving unit

Answer

Requesting a read-back confirms accurate reception and reduces errors caused by radio interference or misunderstanding.

Question 2

When is it appropriate for a dispatcher to terminate a 911 call?

Accepted Answer

When the dispatcher has gathered all necessary information and units are en route

Answer

A dispatcher should only end a call once all critical information is obtained and appropriate resources have been dispatched.

Question 3

Which of the following is an example of 'dead air' on a radio channel, and why is it problematic?

Accepted Answer

A period of silence after releasing the PTT button — it blocks other transmissions and wastes channel time

Answer

Dead air occurs when the PTT is held without speaking, monopolizing the channel and preventing other critical communications.

Question 4

A caller reports a structure fire but does not know the address. Which piece of information would be MOST valuable to gather next?

Accepted Answer

The nearest cross street or a visible landmark

Answer

Location is the highest priority for fire dispatch; cross streets or landmarks allow units to respond even without a street address.

Question 5

The term 'CAD' in public safety dispatching refers to:

Accepted Answer

Computer-Aided Dispatch

Answer

CAD (Computer-Aided Dispatch) is the software system used to log, track, and manage emergency incidents and unit assignments.

(PSD) Certified Public Safety Dispatcher Practice Test