DC motors are constructed using Permanent Magnet resulting in:(a) Higher torque/inertia ratio(b) Higher operating frequency(c) No filed losses(d) All of the mentionedI got this question in unit test.I'd like to ask this question from Controller Components topic in section Control System and Components of Control Systems

DC motors are constructed using Permanent Magnet resulting in:(a) High

1.	DC motors are constructed using Permanent Magnet resulting in:(a) Higher torque/inertia ratio(b) Higher operating frequency(c) No filed losses(d) All of the mentionedI got this question in unit test.I'd like to ask this question from Controller Components topic in section Control System and Components of Control Systems
Answer» The correct ANSWER is (d) All of the mentioned For explanation: DC MOTORS are EXTENSIVELY using Permanent Magnets for its construction as they provide higher torque/inertia ratio, higher operating FREQUENCY, no field losses.

Discussion

No Comment Found

Related InterviewSolutions

In a temperature control system, what conversion in signal takes place?(a) Digital to Analog(b) Analog to Digital(c) Error to Digital(d) Error to AnalogI have been asked this question in an international level competition.I'd like to ask this question from Classification of Control Systems topic in section Control System and Components of Control Systems
When comparing operating cost of hydraulic systems to pneumatic systems, generally they are.(a) More expensive to operate(b) Less expensive to operate(c) Cost is same to operate(d) Cost is not requiredThe question was asked in my homework.Origin of the question is Pneumatic Systems topic in section Control System and Components of Control Systems
When comparing first cost of hydraulic systems to pneumatic systems, generally they are:(a) More expensive to purchase(b) Less expensive to purchase(c) Cost is same(d) Cost is not requiredI have been asked this question in class test.Question is from Pneumatic Systems in chapter Control System and Components of Control Systems
5/2 way single solenoid valve has:(a) 2 ports 2 positions(b) 5 ports 2 positions(c) 5 ports 5 positions(d) 2 ports 5 positionsThis question was posed to me during an online exam.This is a very interesting question from Hydraulic Systems topic in section Control System and Components of Control Systems
A stepper motor may be considered as a ____________ converter.(a) Dc to dc(b) Ac to ac(c) Dc to ac(d) Digital-to-analogueI got this question in an interview.My question is from Stepper Motors topic in division Control System and Components of Control Systems
The use of feedback element in the feedback loop is:(a) It converts the output variable ‘c’ to another suitable feedback variable ‘b’ to compare with the input command signal.(b) It is the actuating element(c) To increase the stability(d) None of the mentionedI have been asked this question by my college director while I was bunking the class.Question is from Linear Approximation of the Non-Linear System topic in chapter Control System and Components of Control Systems
In an automatic control system which of the following elements is not used?(a) Error detector(b) Final control element(c) Sensor(d) OscillatorThis question was addressed to me in a job interview.My enquiry is from Linear Approximation of the Non-Linear System topic in chapter Control System and Components of Control Systems
Feedback control systems are referred to as closed loop systems.(a) True(b) FalseI got this question in exam.The doubt is from Classification of Control Systems topic in chapter Control System and Components of Control Systems
What is the algebraic sum of the reference input and feedback?(a) Error Signal(b) Error Detector(c) Controlled system(d) Controlled outputThe question was posed to me in homework.The query is from Classification of Control Systems in division Control System and Components of Control Systems
Fluid power circuits use schematic drawings to:(a) Simplify component function details(b) Make it so only trained persons can understand the functions(c) Make the drawing look impressive(d) Make untrained person to understandI had been asked this question in an internship interview.Question is taken from Pneumatic Systems in division Control System and Components of Control Systems

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment