Motor Controls Final Exam 2023 with complete solutions

Voltage - Answer- The amount of electrical pressure in a circuit Current - Answer- Th amount of electrons flowing through an electrical circuit Permanent Magnet - Answer- A magnet that can retain its magnetism after the magnetizing force has been removed Lock Out - Answer- The process of removing the source of electrical power and installing a lock that prevents the power from being turned on Tag Out - Answer- The process of placing a danger tag on the source of electrical power Resistance - Answer- The opposition to the flow of electrons Parallel Connection - Answer- A connection that has two or more components connected so there is more than one path for current flow Insulator - Answer- A material with an atomic structure that allows few free electrons to pass through it Series Connection - Answer- A connection that has two or more components connected so there is only one path for current flow Solenoid - Answer- An electrical output device that converts eelectrical energy into linear mechanical force Contacts - Answer- Are the conducting part of the relay that acts as a switch to make or break a circuit Mechanical Life - Answer- The number of times the mechanical parts of a relay operate before malfunctioning Secondary Winding - Answer- The coil of a transformer that delivers the energy at the transformed or changed voltage to the load Control Tansformer - Answer- A transformer that is used to step down the voltage to the control circuit of a system or machine Primary Winding - Answer- The coil of a transformer that draws power from the source Solid State Relay (SSR) - Answer- A switching device that has no contacts and switches entirely by electronic means Contact Life - Answer- The number of times the contacts of a relay switch the load controlled by the relay before malfuncting Relay - Answer- A device that controls one electrical circuit by opening and closing contacts in another circuit General Purpose Relay - Answer- A mechanical switch operated by a magnetic coil Thermistor - Answer- A temperature-sensitive resistor whose resistance changes with change in temperature Regulated Power Supply - Answer- A power supply that maintains a constant voltage across an output even when loads vary Pressure Sensor - Answer- A transducer that outputs a voltage or curre t with a corresponding change in pressure Flow Detection Sensor - Answer- A sensor that detects movement (flow) of a liquid or gas using solid-state device Full Wave Rectifier - Answer- An electrical circuit containing two diodes and a center-tapped transformer used to produce pulsating DC Half Wave Rectifier - Answer- An electrical circuit containing an AC source, a load resistor, and a diode that permits only the positive half cycles of the AC sine waves to pass, which creates pulsating DC Pick Up Voltage - Answer- The minimum voltage that causes the armature to start to move Selector Switch - Answer- A switch with an operator that is rotated (instead of pushed) to activate the electrical contacts Limit Switch - Answer- A mechanical input that requires physical contact to the object with the switch actuator Flow Switch - Answer- A control switch that detects the movement of a liquid Pressure Switch - Answer- A switch that detects a set amount of force and activates electrical contacts when the set amount of force is reached Up Counter - Answer- A device used to count inputs and provide an output (contacts) after a preset count value is reached Non Retentive Timer - Answer- A timer that does not maintain its current accumulated time value when it's control input signal is interrupted or power to the timer is removed