Electrical
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the formula for impedance | z=sqr root of R sqd + X sqd
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| What is the formula for reactance | XL= 2pie FL and XC = 1/2pie FC
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| List three power formulas | P=V*i and P=iSqd R and P=i*V*COS
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| What is the formula for illumination | E=i/D sqd
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| Which are two incandescent lamps | Tungsten filament and High pressure mercury
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| Name 3 types of DC machines | Series motors, shunt motors and compound motors
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| What does DOL stand for? | Direct On Line starter
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| What are the electronic components used in a bridge rectifier | Diodes
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| What is the formula for Power Factor | COS Theta = R/ Z OR PF= KW/kVA
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| What type of protective device is a 3036 | Semi Enclosed Fused
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| What type of protective device is a BS EN 60898 | Circuit Breaker
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| What type of protective device is a BS 88-2 | General purpose fuse
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Created by:
Adamrsc
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