Electrical Engineering : Dc Motors QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
16.Starters are used with D.C. motors because |
| these motors have high starting torque |
| these motors are not self-starting |
| back e.m.f. of these motors is zero initially |
| to restrict armature current as there is no back e.m.f. while starting |
17.Which D.C. motor will be preferred for machine tools ? |
| Series motor |
| Shunt motor |
| Cumulative compound motor |
| Differential compound motor |
18.The direction of rotation of a D.C. series motor can be changed by |
| interchanging supply terminals |
| interchanging field terminals |
| either of (a) and (b) above |
| None of the above |
19.Which of the following application requires high starting torque ? |
| Lathe machine |
| Centrifugal pump |
| Locomotive |
| Air blower |
20.For starting a D.C. motor a starter is required because |
| it limits the speed of the motor |
| it limits the starting current to a safe value |
| it starts the motor |
| none of the above |
More Dc Motors QUESTIONS AND ANSWERS available in next pages
-
Health is the greatest gift, contentment is the greatest wealth -Buddha
- TNTET 2021 - Practice
- SSC CGL 2021 - Practice
- TNPSC Group 2A 2021 - Practice
- IIT JEE
- IIT JEE Q&A
- TNPSC Answer Keys
- TNPSC Group 2 Syllabus
-
TNPSC Q&A
- Online Tests - TNPSC
- Online Tests - GK
- IBPS 2020-2021
- Online Tests - Bank
- Online Tests - RRB NTPC
- Online Tests - UGC NET
- Online Tests - TANCET
- Online Aptitude Test
-
Engineering
-
Programming
-
Basic Science
-
Quiz
- Plus Two Question Papers
- SSLC Question Bank
-
Aptitude Tests
-
Logical Reasoning
-
General Knowledge-Hindi
-
Indian History MCQ
-
Indian Geography MCQ
-
Indian Civics MCQ
-
Indian Economics MCQ
-
CTET Biology MCQ
-
CTET Chemistry MCQ
-
CTET Physics Solved MCQ
-
Arithmetic Tests
- Press Release
- FAQ
- Coaching Centres
- TNPSC Group 1 Syllabus
-
TNPSC Group IV Syllabus
- TRB 2017 in English PDF
- TRB 2017 in Tamil PDF
- TET
- TNTET
Too many of us are not living our dreams because we are living our fears.- Les Brown
