WebJun 8, 2024 · A DC motor contains different parts that understanding each one can assist to know deeply these parts cooperate with each other and in the end how DCs work. These components are: a stator, a rotor, a yoke, … A DC motor is any of a class of rotary electrical motors that converts direct current (DC) electrical energy into mechanical energy. The most common types rely on the forces produced by induced magnetic fields due to flowing current in the coil. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current …
Control Systems Questions and Answers - Sanfoundry
WebDC Machines Questions and Answers – BLDC Motors. This set of DC Machines Multiple Choice Questions & Answers (MCQs) focuses on “BLDC Motors”. 1. In BLDC motor field winding is kept on _______________. 2. By electronic circuitry BLDC can be controlled for both constant and variable torque operation. 3. Weba) Speed equal to rated speed. b) Speed greater than rated speed. c) Speed less than rated speed. d) Can run anywhere. View Answer. 5. In order to run motor on rated speed while carrying out Swinburne’s test we add ______________. a) Resistance in parallel with armature. b) Resistance in series with armature. builders hardware supply erie pa
DC Compound Motor Operating Characteristics Multiple ... - Sanfoundry
WebThis set of DC Machines Questions and Answers for Entrance exams focuses on “Efficiency of DC Machine – 2”. 1. The condition for maximum efficiency for a DC generator is __________. a) Eddy current losses = stray losses. b) Hysteresis losses = eddy current losses. c) Copper losses = 0. WebThis set of DC Machines online quiz focuses on “Starting of DC Motors – 2”. 1. In three-point starter, as a starting handle is rotated __________. a) The resistance is added into armature circuit. b) The resistance is removed from field circuit. c) The resistance is added into field circuit. d) Resistance is neither added nor removed. WebManish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay … crossword making tool free