Related InterviewSolutions

• A 3-phase induction motor runs at almost 50 rpm at no load and 25 rpm at full load when supplied with power from a 50 Hz, 3-phase supply. What is the corresponding speed of the rotor field with respect to the rotor?(a) 25 revolution per minute(b) 20 revolution per minute(c) 10 revolution per minute(d) 30 revolution per minuteThis question was addressed to me at a job interview.The origin of the question is Starting topic in portion Starting of Electric Drives
• Calculate the value of the frequency of the 220 V DC supply.(a) 10 Hz(b) 0 Hz(c) 20 Hz(d) 90 HzI have been asked this question in an interview for internship.Question is taken from Starting in section Starting of Electric Drives
• Calculate the active power in an 8965 Ω resistor with .23 A current flowing through it.(a) 547.12 W(b) 474.24 W(c) 554.78 W(d) 123.88 WThis question was posed to me in a job interview.The doubt is from Methods to Reduce the Energy Loss During Starting topic in section Starting of Electric Drives
• Which one of the following methods would give a lower than the actual value of regulation of the alternator?(a) ZPF method(b) MMF method(c) EMF method(d) ASA methodI got this question in an interview for internship.My query is from Methods to Reduce the Energy Loss During Starting topic in division Starting of Electric Drives
• Calculate the active power in a 32 H inductor.(a) 28 W(b) 189 W(c) 4 W(d) 0 WThis question was posed to me in unit test.My query is from Methods to Reduce the Energy Loss During Starting in portion Starting of Electric Drives
• Calculate the active power in a 543 F capacitor.(a) 581 W(b) 897 W(c) 0 W(d) 892 WThis question was addressed to me during a job interview.This key question is from Methods to Reduce the Energy Loss During Starting in section Starting of Electric Drives
• Calculate the active power in an 8764 H inductor.(a) 8645 W(b) 6485 W(c) 0 W(d) 4879 WThis question was posed to me in an interview.This intriguing question comes from Methods to Reduce the Energy Loss During Starting topic in chapter Starting of Electric Drives
• The slope of the V-I curve is 6.9°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.(a) .38 Ω(b) .59 Ω(c) .34 Ω(d) .12 ΩThe question was posed to me in exam.My question is from Methods to Reduce the Energy Loss During Starting topic in section Starting of Electric Drives
• Calculate the value of the frequency if the capacitive reactance is .1 Ω and the value of the capacitor is .02 F.(a) 71.25 Hz(b) 81.75 Hz(c) 79.61 Hz(d) 79.54 HzI have been asked this question in semester exam.The origin of the question is Methods to Reduce the Energy Loss During Starting in portion Starting of Electric Drives
• Calculate the useful power developed by a motor using the given data: Eb = 4V and I = 52 A. Assume frictional losses are 3 W and windage losses are 2 W.(a) 203 W(b) 247 W(c) 211 W(d) 202 WThis question was posed to me in quiz.This key question is from Methods to Reduce the Energy Loss During Starting topic in section Starting of Electric Drives