USCG Exam PracticeHand/power tools, measuring instruments, and maintenance
Under 46 CFR §61.40-10, when may a synthesized or artificial signal be applied to a sensor during a machinery alarm test?
- A. Whenever it is more convenient than creating the actual condition
- ✓ Only when the test would damage equipment or endanger personnel, and the test equipment is maintained in good working order and periodically calibratedCorrect
- C. At any time, provided the test is documented in the engineering log
- D. Only when approved in advance by the vessel's classification society
Why B is correct
46 CFR §61.40-10(b) states that test techniques must not simulate monitored system conditions by artificial signals unless the test would damage equipment or endanger personnel. In that case, a synthesized signal applied to the sensor is acceptable only if the test equipment is maintained in good working order and is periodically calibrated to the satisfaction of the OCMI.
Cited:46 CFR §61.40-10