Rajkamal Sir (Engineers Platform) 📚📚

5. Which type of gate valves are used in high head installations?

4. Which type of valves is preferred for moderate heads?

3. The surge tank controls the water when the load on the turbine is ________

2. Which type of hydro power plant can be with or without pondage?

1. Which type of turbines does modern hydro power plant use?

5. The application of external voltage to the terminals of diode is termed as _________.

4. How many electrons are present in the valence shell of trivalent impurities?

3. What type of impurities are chosen for doping to form n-type semiconductor?

2. Semiconductor undergoing the process of doping are classified as __________.

1. Temperature and conductivity are directly proportional in __________.

5. In an auto-transformer, the number of turns in the primary winding is 210 and in the secondary winding is 140. If the input current is 60A, the currents in the output and in the common winding are respectively.

4. A 100/10 V, 50 VA transformer is converted to 100V/110V auto transformer, the rating of the auto transformer will be

3. Which of the following is the main advantage of an auto-transformer over a two winding transformer?

2. The essential feature of an auto-transformer is that it

1. Auto transformer has