DC Machines Objective Questions

DC Machines Problems on “External and Armature Characteristics of DC Generator”. 1. Armature characteristic is _____________a) No-load characteristicb) Load characteristicc) […]

Basic DC Machines Questions on “Speed Control Using Field Control of Series Motor”. 1. Which of the following DC motor

DC Machines Multiple Choice Questions on “PMDC Motors”. 1. In PMDC motors we use magnetic material with ___________a) Low residual

DC Machines Multiple Choice Questions on “Characteristics of Self Excited Generator”. 1. What is Self-excitation in DC shunt generator?a) Field

DC Machines Questions and Answers for Aptitude test on “Speed Control Using Armature Control in DC Motor”. 1. For which

DC Machines Multiple Choice Questions on “Armature Winding and Commutator”. 1. Armature winding is mounted on a __________a) Statorb) Rotorc)

DC Machines test on “Characteristics of Separately Excited Generators”. 1. Characteristics of separately excited DC generator are drawn by keeping

DC Machines Multiple Choice Questions on “Ward Leonard Speed Control Method”. 1. Ward Leonard method is ___________a) Armature control methodb)

DC Machines Multiple Choice Questions on “Lap Winding”. 1. Resultant pitch in the lap winding is__________a) Depends on Yb valueb)

DC Machines Multiple Choice Questions on “Graphical Representation of External Characteristics”. 1. No load point of DC generator is __________a)

DC Machines Multiple Choice Questions on “Braking of DC Motors – 1”. 1. Which of the following is the best

DC Machines Multiple Choice Questions on “Wave Winding”. 1. What will be the value of “Yf + Yb” for a

DC Machines Multiple Choice Questions on “Parallel Operation of DC Generator”. 1. For connecting two generators in parallel, they should

DC Machines Question Bank on “Braking of DC Motors – 2”. 1. Regenerative braking is used when duty cycle ____________a)

DC Machines Multiple Choice Questions on “EMF and Torque Production – 1”. 1. In which mode machine is operating, given