Q.39 The power rating of an electric kettle is designed for _________.Ans 1. 2 to 3 kW2. 1 to 2 kW3. 4 to 5 kW4. 3 to 4 kWCorrect Ans: 1

Q.53 Tenders are ordinarily invited on tender forms prescribed for the purpose. If any alteration is to be made, it should be done after taking prior sanction of the ________.Ans 1. local agency2. competent authority3. contractor4. purchase assistantCorrect ...

Q.36Ans 1.2.3.4.Correct Ans: 2

Q.44 The red light emitted by a ruby laser is of wavelength ____________.Ans 1. 566.93 nm2. 775.1 nm3. 456.77 nm4. 694.3 nmCorrect Ans: 4

Q.41 Which of the following motors is used in the application of biomedical instruments used for artificial heart pumping?Ans 1. Brushless DC motor2. DC shunt motor3. Alternator4. DynamotorCorrect Ans: 1

Q.45Ans 1. superposition theorem can be applied2. superposition theorem can be applied because it contains current source3. reciprocity theorem can be applied4. superposition theorem cannot be applied because it contains diodeCorrect Ans: 4

Q.50 Which of the following is used with a photometer for the conversion of light into electric current?Ans 1. Inductor2. Resistor3. Photo diode4. CapacitorCorrect Ans: 3

Q.51 The working principle of a BLDC motor is ________________.Ans 1. electromagnetic Induction2. Fleming’s left hand rule3. Lorentz force law4. Fleming’s right hand ruleCorrect Ans: 3

Q.40 Hysteresis loss depends on which of the following factors?Ans 1. Square of the maximum flux density2. Frequency of magnetic reversals3. Square of the thickness of the material4. Square of the Steinmetz hysteresis coefficientCorrect Ans: 2

Q.38 A short transmission line has length _______.Ans 1. more than 400 km2. from 250 km to 400 km3. from 80 km to 250 km4. up to 80 kmCorrect Ans: 4