Explain AM FM and PM in Data Communication and Network

Explain AM FM and PM in Data Communication and Network

Explain AM FM and PM in Data Communication and Network In the context of data communication and networking, the terms AM, FM, and PM pertain to different modulation techniques employed for encoding information onto carrier signals. Modulation is the act of altering the characteristics of a carrier signal to match the information being transmitted. Here … Read more

Top 10 Electrical Questions and Answers for an Interview

Electrical engineers are those who create and build devices and systems that utilise electricity to facilitate human life. It is crucial to develop a comprehensive preparation for potential electrical interview questions and answers prior to your job interview as an electrical engineer. Here we have provided Top 10 Electrical Questions and Answers for an Interview that … Read more

Buchholz relay is operated by:

Buchholz relay is operated by:

MCQ on Control and Protection 4 1. The acting contacts for circuit breakers are made of: a. stainless steel b. hard press iron c. copper tungsten alloy d. porcelain View Answer 2. A fuse wire should have : a. Low specific resistance and high melting point b. High specific resistance and low melting point c. … Read more

What is A Circuit Breaker?

What is A Circuit Breaker?

What is A Circuit Breaker? A circuit breaker is equipment that helps to protect the electrical devices from damage during abnormal conditions by interrupting the fault current or short circuit. Its basic function in an electrical path is to detect an abnormal condition and discontinue electrical flow. A circuit breaker is easier to use since … Read more

MCQ on Control and Protection 3

MCQ on Control and Protection 3

MCQ on Control and Protection 3 1. For the protection of stator winding of an alternate against internal fault involving ground the relay used is a: A. Biased differential relay B. Directional over-current relay C. Plain impedance relay D. Buchholz relay View Answer 2. The least expensive protection for over current in low-voltage system is: … Read more

MCQ on Control and Protection

1. Relay contacts are normally made up of: a) Silver contactsb) Copper contactsd) Lead contactsc) Aluminum contacts View Answer 2.Sparking between the contacts can be reduced by inserting: a) A capacitor in parallel with the contactsb) A capacitor in series with the contactsc) A resistor in the lined) A reactor in the line View Answer … Read more