Magnetic Contactor Function, Holding, Interlocking & Relay
Magnetic Contactor A magnеtic contactor is an еlеctrical switching dеvicе that usеs a coil to gеnеratе a magnеtic fiеld, which in turn controls thе opеning and closing of еlеctrical contacts. It is commonly usеd to control thе flow of еlеctrical … Continued
ATS Automatic Transfer switch ATS changeover drawing & Function
Automatic Transfer Switch (ATS) An automatic transfer switch (ATS) circuit is often used to switch between two power sources. The primary power source is usually the utility grid or mains power, while the secondary power source is usually a backup … Continued
Electrician,Building Electrician job Interview Questions & Answers
Electrician,Building Electrician job Interview Questions & Answers
Building & Construction Technology MCQs, Mason Civil Trade theory Test Practice
Q#1 In clay soil (A) Swelling and shrinkage characteristics prevail (B) Consolidation continues even after several years of construction (C) Differential settlement is generally prevalent (D) All the above Ans: D Q#2. Dutch bond is a modification of (A) English … Continued
20 Most Important Interview Question and Answer related Electrical Transmission & Distribution Lines
1) Why is AC transmission preferred over DC transmission? Answer. 2) What is the difference between the Transmission line and distribution line? Answer. Transmission lines are used for carrying electric power from power stations to the substations. Distribution lines are … Continued
Plumbing Trap Types of Traps used in Plumbing system
Plumbing TRAPS: A trap is a device which is used to prevent sewer gases from entering the buildings. The traps are located below or within a plumbing fixture and retains small amount of water. These are available in cast iron, … Continued
Electrical Distribution board Different Types of Distribution Board
Distribution Board An electrical distribution board is easy in that it can be used by different areas of the building as long as a switch dis-connector operates each board. For example, a particular DB board may be used for the … Continued
Types of Electrical Wiring,Most common Electrical Wiring Method
Electrical Wiring Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Types of Electrical Wiring Systems 1. Cleat Wiring: This wiring system wire is braided and … Continued
Basic Electrical theory Electrical MCQs Test
1. Ohm’s Law states that, a) I=VR b) V=IR c) R=VI d) All of the above As per ohm Law Current is directly proportional to Voltage. Ans.b 2. The SI unit of Current, Voltage, Resistance, Power, Capacitance, Inductance, Frequency a) … Continued