Related InterviewSolutions

• Electric motors are placed in __________ to protect them from dust and contamination.(a) Enclosures(b) Open environment(c) Moisturizing environment(d) Hot environmentI have been asked this question by my school teacher while I was bunking the class.The question is from Motors Rating and Heating in section Rating and Heating of Motors of Electric Drives
• Second lowest order harmonic present in 3-Φ fully controlled rectifier is __________(a) 5^th(b) 7^th(c) 3^rd(d) 2^ndI got this question during an interview.This question is from Motors Rating and Heating topic in chapter Rating and Heating of Motors of Electric Drives
• Full form of VRF.(a) Voltage ripple factor(b) Voltage revert factor(c) Volume ripple factor(d) Volume revert factorI had been asked this question during an online interview.I would like to ask this question from Motors Rating and Heating in section Rating and Heating of Motors of Electric Drives
• Calculate the value of THD if the distortion factor is .8.(a) 76 %(b) 75 %(c) 74 %(d) 73 %I got this question in an interview for job.My doubt stems from Motors Rating and Heating in division Rating and Heating of Motors of Electric Drives
• Calculate the value of Voltage ripple factor if the Form factor is 1.1.(a) 45.8 %(b) 46.2 %(c) 47.5 %(d) 49.9 %The question was posed to me in my homework.I need to ask this question from Motors Rating and Heating in portion Rating and Heating of Motors of Electric Drives
• Calculate the compensator rating required for a sec(Φ)=1.(a) 0.64 P.U(b) 0.21 P.U(c) 0.57 P.U(d) 0 P.UI have been asked this question in an interview for internship.This question is from Motors Rating and Heating topic in section Rating and Heating of Motors of Electric Drives
• Full form of THD is ____________(a) Total harmonic diverter(b) Total harmonic digital(c) Total harmonic distortion(d) Total harmonic discreteI had been asked this question in an internship interview.Enquiry is from Motors Rating and Heating in portion Rating and Heating of Motors of Electric Drives
• The most common cause of motor failure is ____________(a) Overloading(b) Low resistance(c) Contamination(d) Over-HeatingI had been asked this question in semester exam.The above asked question is from Motors Rating and Heating topic in division Rating and Heating of Motors of Electric Drives
• Full form of IDMT is _________(a) Inverse definite minimum time(b) Inverter definite minimum time(c) Inverter definite maximum time(d) Insert definite minimum timeI got this question by my college professor while I was bunking the class.I want to ask this question from Motors Rating and Heating in portion Rating and Heating of Motors of Electric Drives
• Overloading can be prevented using _____________(a) Over-current protection(b) Speed protection(c) Over frequency protection(d) Oversize protectionThe question was asked in semester exam.Query is from Motors Rating and Heating topic in section Rating and Heating of Motors of Electric Drives