Explain the difference between dcs & plc & scada?

1016

---

How to calculate knee point voltage? Describe its purpose for differential protection.

983

---

Explain the difference between circuit switching and packet switching?

1031

---

Explain how the active power factor correction changes the wave shape of current drawn by a load to improve the power factor?

931

---

Define negative frequency?

957

---

State the different types of flip flop?

943

---

What is scope in rfid?

926

---

Why the aspect ratio of tv video display is 4:3 or 16:9?

851

---

How to convert binary to gray code and vice-verse?

926

---

Explain the output of the lexical analyser?

978

---

Explain the difference between a multiplexer and encoder?

1017

---

How to calculate knee point voltage?

937

---

What is the maximum or minimum value of tv in msa to calculate r&r?

984

---

Explain the importance of if in radio receiver?

1010

---

Why is 400 hz used for flight instruments and radio transmission system in aviation industry universally?

997

---