Question 309Electricity/Electronics - QMED70% to pass
What type of starter is represented in the electrical schematic shown in the illustration? Illustration EL-0017
AI Explanation
The correct answer is D) across-the-line starter.
The across-the-line starter is the most common type of motor starter used for Coast Guard Captain's License Examinations. It directly connects the motor to the full line voltage, allowing the motor to start at full torque. This is the simplest and most straightforward motor starting method, making it the preferred choice for the exam.
The other options, such as part-winding, autotransformer, and primary-resistor starters, are more complex and used in specific applications. They are less likely to be encountered in the context of the Coast Guard Captain's License Examination.
Related Questions
#307 As shown in the illustration, if the line voltage is 450 VAC, what would be the applied voltage to the motor at the instant of startup and through the acceleration period? Illustration EL-0012 #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? #310 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 #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