Open transition starting may be objectionable in some applications if the transition causes spikes on the power line when ____.
a. adding another three pole contactor and resistors
b. the motor changes from wye to delta
c. voltage reducing equipment is connected
d. an on-delay timer has been added to the control circuit
b. the motor changes from wye to delta
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A sanitary combination is a single fitting that combines _____
A) a sanitary tee and a vent ell B) an upright wye and a vent branch C) an inverted wye and a test tee D) a sanitary wye and a 1/8 bend
If an electrician works 
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Fill in the blank(s) with the appropriate word(s).