Question 310Electricity/Electronics - QMED70% to pass
As shown in the illustration of the elementary diagram of a three speed anchor windlass controller, which of the following contactor, relay, or timer coils operates with DC voltage? Illustration EL-0073
AI Explanation
The correct answer is A) first speed.
In the illustration EL-0073 of the elementary diagram of a three-speed anchor windlass controller, the contactor, relay, or timer coil that operates with DC voltage is the one for the first speed. This is because the anchor windlass is typically powered by a DC electrical system on board a vessel, and the first speed is the most basic and direct connection to the DC power source.
The other options, B, C, and D, likely represent higher speed or more complex control circuits that may operate on AC voltage or use additional relays and timers, but the fundamental first speed contactor or relay is the one that is directly powered by the DC voltage of the vessel's electrical system.
Related Questions
#308 A three-phase, induction-type motor experiences an open in one phase. Which of the listed automatic protective devices will prevent the motor from being damaged? #309 What type of starter is represented in the electrical schematic shown in the illustration? Illustration EL-0017 #311 How is the reversal of an AC, three-phase, induction motor accomplished? #312 When a motor is started by the controller shown in figure "C" of the illustration, what circuit components are in the holding current flow path through the control circuit while the motor is in operation? Illustration EL-0010 #313 Which of the following statements is true concerning the motor controller circuit shown in the illustration? Illustration EL-0004