Question 376Electricity/Electronics - QMED70% to pass
Where is the power necessary to energize the howler "relay" coil at the engine room station as shown in the illustration? Illustration EL-0093
AI Explanation
The correct answer is A) comes from each station's hand-cranked generator.
The power necessary to energize the howler "relay" coil at the engine room station, as shown in illustration EL-0093, comes from the station's hand-cranked generator. This is because the howler system is designed to provide an emergency alarm even when the ship's main power is lost, and the hand-cranked generator ensures a reliable power source for this critical function.
The other options are incorrect because: B) the power is not supplied from a battery or ship's power, as the system needs to function independently; C) pushing a button on the handset does not directly provide the power to the relay coil; and D) the power is not conducted through the relay's contacts, as that would only switch the circuit, not provide the necessary power.
Related Questions
#373 Which of the following methods should be used to dress the face of silver-plated contacts? #374 Using the catalog selection chart shown in Illustration EL-0180, determine the correct catalog number for a motor starter that meets the selection criteria detailed as follows: NEMA Open enclosure 3-pole Rated at 90 continuous amperes Vertically mounted Electronic overload relay-standard feature set Non-reversing starter Operating coil rated at 120 VAC/60 Hz #377 As shown in the illustration, which of the following statements is correct concerning the circuits in a sound-powered telephone system? Illustration EL-0093 #378 The push button on the handset of a ship's sound-powered telephone must be depressed in order to do what? #379 What does the component labeled "B" shown in the illustration represent? Illustration EL-0093