Q.64 When SCR is subjected to high di/dt, what does it happen with SCR?Ans 1. SCR is turned-on2. Over-current flows through SCR3. SCR is turned-off4. Local hot-spots are created and SCR is damagedCorrect Ans Provided: 4

Q.100 RTDs haveAns 1. Negative temperature coefficient2. Low temperature coefficient3. High resistivity4. Positive temperature coefficientCorrect Ans Provided: 4

Q.83 How many power points can be allowed in one circuit ?Ans 1. One2. Four3. Three4. TwoCorrect Ans Provided: 4

Q.58 Amorphous core transformers also known as ——–and the magnetic core of this transformer is made with —————————-metal.Ans 1. Amorphous metal transformer, CRGO.2. Amorphous metal transformer, ferromagneticamorphous.3. Amorphous metal transformer, non-magnetic material4. Amorphous metal transformer, silicon steel.Correct Ans ...

Q.75 In burglar alarm circuit, which type of sensor is used?Ans 1. Humidity sensor2. Pressure sensor3. Thermal sensor4. Photo sensorCorrect Ans Provided: 4

Q.66 Height of lamp from floor level is  Ans 1. 2.5 m2. 3.5 m3. 4 m4. 1 mCorrect Ans Provided: 1

Q.49 ADLS is —————Ans 1. Switching the motor to star mode when the load is greater than 40 percent.2. All of the options3. Automatic delta to star converter.4. When the load increases beyond 40 percent it switches the ...

Q.95 Which of the following is not covered by Customer domain in smart grid?Ans 1. Distribution lines2. Smart appliances3. Electric vehicles4. Premises networksCorrect Ans Provided: 1

Q.65 Which of the following is the type of energy efficient transformer ?Ans 1. All of the options2. Amorphous transformer3. Welding transformer4. Pulse transformerCorrect Ans Provided: 2

Q.55 The efficiency of an induction motor is aboutAns 1. Less than 50%2. 80-90%3. 50-60%4. 100%Correct Ans Provided: 2