CBT Risk Management & Mitigation 3

Question 1

A broadcast engineer discovers corrosion on a coaxial transmission line connector after a severe storm. Which risk does this PRIMARILY introduce?

Accepted Answer

Increased impedance mismatch and signal loss

Answer

Connector corrosion increases contact resistance and creates impedance discontinuities, leading to signal loss and elevated VSWR.

Question 2

What is the purpose of an automatic exciter changeover system in a broadcast transmitter plant?

Accepted Answer

To automatically replace a failed exciter with a standby unit

Answer

Automatic exciter changeover detects exciter failure and switches to a standby unit without operator intervention, minimizing on-air downtime.

Question 3

Which environmental risk poses the greatest long-term threat to electronics stored in an uncontrolled broadcast equipment room?

Accepted Answer

High humidity and temperature cycling

Answer

High humidity accelerates corrosion on PCB traces and connectors, while temperature cycling causes thermal stress cracking of solder joints and component failures.

Question 4

During a risk assessment, a broadcast facility rates a hazard as 'low probability but catastrophic impact.' How should this risk be treated?

Accepted Answer

Implement robust mitigation or transfer the risk via insurance

Answer

Catastrophic-impact risks must be mitigated or transferred regardless of probability because the consequence of occurrence is unacceptable.

Question 5

A TV station's master control switcher fails live on-air. Which pre-planned mitigation allows fastest recovery?

Accepted Answer

Switching to a redundant backup switcher already in the signal path

Answer

A pre-configured backup switcher already in the signal chain allows immediate manual or automatic switchover without rerouting cables or waiting for equipment delivery.

(CBT) Certified Broadcast Technician Practice Test

(CBT) Certified Broadcast Technician Practice Test

CBT Risk Management & Mitigation 3