1ASSIGNMENT 1Textbook assignment: “Introduction to Generators and Motors,” pages 1-1 through 4-18._________________________________________________________________________________1-1.In generators, what principle is used toconvert mechanical motion to electricalenergy?1.Atomic reaction2.Electrical attraction3.Magnetic repulsion4.Magnetic induction1-2.When you use the left-hand rule forgenerators, what is indicated by themiddle finger?1.Direction of flux2.Direction of motion3.Direction of current flow4.Direction of the magnetic field1-3.The output voltage of an elementarygenerator is coupled from the armature tothe brushes by what devices?1.Slip rings2.Interpoles3.Terminals4.Pigtails1-4.An elementary generator consists of asingle coil rotating in a magnetic field.Why is NO voltage induced in the coil asit passes through the neutral plane?1.Flux lines are too dense2.Flux lines are not being cut3.Flux lines are not present4.Flux lines are being cut in the wrongdirection1-5.What components cause(s) a generator toproduce a dc voltage instead of an acvoltage at its output?1.The brushes2.The armature3.The slip rings4.The commutator1-6.When two adjacent segments of thecommutator on a single-loop dcgenerator come in contact with the brushat the same time, which of the followingconditions will occur?1.The output voltage will be zero2.The output voltage will be maximumnegative3.The output voltage will be maximumpositive1-7.In an elementary, single-coil, dcgenerator with one pair of poles, what isthe maximum number of pulsationsproduced in one revolution?1.One2.Two3.Three4.Four1-8.If an elementary dc generator has a two-coil armature and four field poles, whatis the total number of segments requiredin the commutator?1. 82. 23.164. 4
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