ATT Week 12 (FC) questions and answers latest top score.

ATT Week 12 (FC) questions and answers latest top score. Rigidity is determined by what three factors? - correct answer. Rotor shape, rotor weight, and rotor speed. Any machine that has a spinning or rotating shaft and uses electricity as the input or output is ______________. - correct answer. Rotating Machinery What are the two categories of rotating machinery? - correct answer. Motor and generator. A __________ uses an electrical input and converts it to a rotating mechanical output. - correct answer. motor A __________ uses a rotating mechanical input and convert it to an electrical output. - correct answer. generator What is the term for voltage produced in a motor that opposes the applied voltage? - correct answer. CMEF What type incremental motor uses digital pulses? - correct answer. Stepper What type of incremental motor uses specific magnitudes of voltage? - correct answer. Analog __________ is best described as a twisting action. - correct answer. Torque Torque is the highest in a __________ condition. - correct answer. locked Horsepower is the power rate corresponding to the rate of conversion of ___________ per min or ___________ per sec - correct answer. 33,000 ft-Ib; 550 ft-Ib/sec What is another metric (not Ft-lb) used to measure torque? - correct answer. Newton meter RPM and CEMF are _____________ to each other, and ____________________ to torque and load. - correct answer. proportional; inversely proportional If RPM increases, what happens to generator output voltage? - correct answer. Increases. In a motor, if applied voltage decreases, what happens to RPM? - correct answer. Decreases. Motors operate on the principles of magnetism that have to do with ____________________. - correct answer. attraction and repulsion DC generators operate on the principle of magnetism that has to do with _________________________ to produce voltage. - correct answer. passing a conductor through a magnetic field What type of power do generators produce? - correct answer. AC or DC If power in = power out, how efficient is said motor/generator? - correct answer. 100% How is efficiency calculated? - correct answer. Pout/Pin x 100 What's the conversion formula for ft/lbs to watts? - correct answer. W = ft/lbs x 1.356 What is the principle of magnetism that allows a generator to power its own stator windings and still generate an output voltage? - correct answer. Retentivity Motor speed and CEMF are __________ proportional. - correct answer. directly ________ voltage opposes armature voltage. - correct answer. CEMF How does an incremental motor operate? - correct answer. The shaft rotates a specific distance for each input. How does a continuous motor operate? - correct answer. The shaft always rotates. What are the two basic components of a motor? - correct answer. Poles and armature. A pulsating DC output is eliminated in a DC generator by using a ___________. - correct answer. multiple loop armatures What is the the primary difference between a DC motor and a DC generator? - correct answer. The power source to the rotor is replaced in a generator with a load. What is ROR? - correct answer. Run Out Rate ROR is expressed as a rate such as __________. - correct answer. feet/second