CBT Risk Management & Mitigation 3 — Questions and Answers
Question 1: A broadcast engineer discovers corrosion on a coaxial transmission line connector after a severe storm. Which risk does this PRIMARILY introduce?
- Increased impedance mismatch and signal loss (Correct answer)
- Reduced bandwidth of the transmission line
- Interference to adjacent channels
- Decreased modulation depth
Correct answer: Increased impedance mismatch and signal loss
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?
- To switch between AM and FM modulation modes
- To automatically replace a failed exciter with a standby unit (Correct answer)
- To reduce power output during off-peak hours
- To alternate between two antennas for even wear
Correct answer: To automatically replace a failed exciter with a standby unit
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?
- Fluorescent lighting
- High humidity and temperature cycling (Correct answer)
- Magnetic fields from nearby transformers
- Vibration from HVAC fans
Correct answer: High humidity and temperature cycling
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?
- Ignore it since probability is low
- Accept the risk without mitigation
- Implement robust mitigation or transfer the risk via insurance (Correct answer)
- Document it only if it occurs
Correct answer: Implement robust mitigation or transfer the risk via insurance
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?
- Ordering a replacement unit
- Switching to a redundant backup switcher already in the signal path (Correct answer)
- Calling the manufacturer's tech support
- Rerouting audio through the audio console
Correct answer: Switching to a redundant backup switcher already in the signal path
A pre-configured backup switcher already in the signal chain allows immediate manual or automatic switchover without rerouting cables or waiting for equipment delivery.
Question 6: What does 'risk transfer' mean in the context of broadcast facility management?
- Moving equipment to a safer location
- Shifting financial responsibility for a risk to a third party such as an insurer (Correct answer)
- Transferring broadcast rights to another station
- Migrating risk data to a backup database
Correct answer: Shifting financial responsibility for a risk to a third party such as an insurer
Risk transfer shifts the financial burden of a risk event to another party, most commonly through insurance policies or contractual agreements.
Question 7: A broadcast facility's fuel contract ensures the diesel generator tank is refilled within 4 hours of a low-level alert. Which risk management principle does this represent?
- Risk avoidance
- Risk acceptance
- Risk mitigation through supply chain preparedness (Correct answer)
- Risk elimination
Correct answer: Risk mitigation through supply chain preparedness
Pre-arranged fuel delivery contracts are a supply chain mitigation that ensures generator fuel availability before it runs out during a prolonged outage.
CBT Risk Management & Mitigation 3
A broadcast engineer discovers corrosion on a coaxial transmission line connector after a severe storm.
Which risk does this PRIMARILY introduce?