USCG Exam PracticeWatch duties, terminology, and instrumentation
An engineering watchstander notices that lube oil temperature has been slowly rising over the past hour but has not yet reached the alarm setpoint. What is the correct action?
- A. Continue logging the readings and wait for the alarm to activate before reporting
- ✓ Investigate the trend and report it up the chain, as a drifting parameter is an early warning of a developing failureCorrect
- C. Secure the affected machinery immediately without notifying the watch engineer
- D. Record the reading as normal since it has not exceeded the alarm setpoint
Why B is correct
NAVEDTRA 14104 §1-2 states that trends matter more than single readings — a temperature slowly drifting off normal is an early warning of fouling, wear, or developing failure, and a good watchstander catches it before an alarm does. Any reading outside its normal band is investigated and reported, not simply written down.
Cited:NAVEDTRA 14104 §1-2