Explain the difference between dcs & plc & scada?

1064

---

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

1031

---

Explain the difference between circuit switching and packet switching?

1079

---

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

972

---

Define negative frequency?

1017

---

State the different types of flip flop?

991

---

What is scope in rfid?

980

---

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

903

---

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

976

---

Explain the output of the lexical analyser?

1026

---

Explain the difference between a multiplexer and encoder?

1062

---

How to calculate knee point voltage?

983

---

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

1028

---

Explain the importance of if in radio receiver?

1058

---

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

1084

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