Exam 1: General Principles of Motor Control, Symbols and Schematic Diagrams
Exam 1: General Principles of Motor Control, Symbols and Schematic Diagrams11 Questions
Exam 2: Manual Starters and Overload Relays13 Questions
Exam 3: The Control Transformer, Relays, Contactors, and Motor Starters13 Questions
Exam 4: Timing Relays, Pressure Switches and Sensors15 Questions
Exam 5: Float Switches, Flow Switches and Sensors11 Questions
Exam 6: Limit Switches and Phase Failure Relays13 Questions
Exam 7: Temperature Sensing, Devices M Solenoid and Motor Operated Valves12 Questions
Exam 8: Hall Effect Sensors and Proximity Detectors12 Questions
Exam 9: Basic Control Circuits and Photodetectors14 Questions
Exam 10: Schematics, Wiring Diagrams Circuit (1), Timed Starting for Three Motors Circuit (2)10 Questions
Exam 11: Float Switch Control of a Pump and Pilot Lights Circuit (3), Developing a Wiring Diagram Circuit (1)8 Questions
Exam 12: Developing a Wiring Diagram Circuit (2) and Developing a Wiring Diagram Circuit (3)6 Questions
Exam 13: Installing Control Systems and Reading Large Schematic Diagrams13 Questions
Exam 14: Multiple Push Button Stations and Hand-Off-Automatic Controls13 Questions
Exam 15: Forward-Reverse Control, Jogging and Inching14 Questions
Exam 16: Dc Motors and Sequence Control14 Questions
Exam 17: Solid-State Dc Drives and Starting Methods for DC Motors13 Questions
Exam 18: Stepping Motors, the Motor and Starting Methods14 Questions
Exam 19: Autotransformer Starting , Resistor and Reactor Starting for Ac Motors14 Questions
Exam 20: Wye-Delta Starting, Part Winding Starters9 Questions
Exam 21: Braking , Consequent Pole Motors, Variable Voltage and Magnetic Clutches14 Questions
Exam 22: Variable Frequency Control14 Questions
Exam 23: Troubleshooting, Motor Installation and Developing Control Circuits19 Questions
Exam 51: Digital Logic and the Bounceless Switch14 Questions
Exam 25: Programmable Logic Controllers and Start-Stop Push Button Control14 Questions
Exam 26: Programming a PLC and Analog Sensing for Programmable Controllers10 Questions
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The most complicated method of starting a motor is across-the-line starting.
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(True/False)
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False
Fuses and circuit breakers are generally employed for circuit protection, and ____ are used to protect the motor.
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(Multiple Choice)
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Correct Answer:
D
What are lighted push buttons?
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(Essay)
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Correct Answer:
Lighted push buttons are an example of providing a second function in a single space. They are generally used to indicate that a motor is running, stopped, or tripped on overload. Most lighted push buttons are equipped with a small transformer to reduce the control voltage to a much lower value. Lens caps of different colors are available.
Push buttons that contain multiple contacts are often called ____ push buttons.
(Multiple Choice)
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The symbol for a float switch illustrates a ball float. It is drawn by adding a ____ to a line.
(Multiple Choice)
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Motor control systems can be divided into three major types: ____________________, semiautomatic, and automatic.
(Short Answer)
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When a machine is installed, the motor, machine, and controls are all interrelated and must be considered as a unit.
(True/False)
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The conductor size, fuse or circuit breaker size, and overload size are generally determined using the ____.
(Multiple Choice)
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What are the similarities and differences between automatic and semiautomatic control?
(Essay)
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