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1. Name the three parts of a programmable logic controller (PLC) and explain why the PLC is preferred by designers over electromechanical relays.
2. Medium-voltage circuit breakers operating on system voltages between 600 volts and 15 kilovolts generally contain blow-out coils and a puffer. Describe a puffer.What is its funtion?
3. How is an electrical distribution system protected from lightning strikes? Name and describe the device used and describe its electrical connection to the distribution system it protects.
4. The first step in preparing a primary distribution cable for connection to a transformer, tap box, or other terminal equipment is to remove the semiconducting jacket. The next step is to crimp a flat lug onto the cable connector. List in any order any three of the next six steps in making the connection.
Compute the total capacitance with parallel connection: Three capacitors C 1 , C 2 and C 3 contain capacitance 20 μf, 15 μf, 30 μf, respectively. compute: 1. Charge on ea
Q. For the coupled inductors shown in Figure, neglecting the coil resistances, write the volt-ampere relations.
Q. Explain Common Emitter Circuit With The Help Of A Circuit Diagram? Most transistor circuits have the emitter,rather than the base,as the terminalcommon to both input and out
Where 8086 mostly used & tell application of 8086? Ans) 8086 is used for common purpose like it is used in traffic signals for control purpose .It's also used for small applic
Common Drain Amplifier In electronics, a common-drain amplifier, as well termed as a source follower, is one type of three basic single-stage field effect transistor (FET) am
The focal length of a concave spherical mirror is equal to 1 meter. What is the radius of curvature of this mirror? Ans: The radius of curvature of this mirror is 2 meter.
Q. What is the significance of source gate cutoff voltage? The source gate cutoff voltage is also called pinch off voltage. It is obtained when VDS increases and approaches a l
what is strain gauge
Q. What do you mean by Mantissa? The mantissa , as well known as the significand , represents the precision bits of the number. It is composed of an implied leading bit and t
(a) For the Zener diode series voltage regulator shown in the Figure. calculate V L , I Z , V R and P Z for R L = 1.2 KΩ and repeat it for R L = 3 KΩ ? Consider Zener breakdow
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