
AC AND DC MACHINES
Authored by Dr. G
Engineering
University
Used 1+ times

AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Back emf is the phenomena occurred in _________
DC generator
DC motor
AC motor
DC Machines
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The main advantage of dc motors compared to ac motors is
Less maintenance
Low starting torque
Low cost
Speed control
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In DC Motor speeds above the rated speed can be attained by varying which of the following winding current
Field winding
Armature winding
Either field or armature winding
Not possible
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Starter is used in DC Motor for which of the following purpose:
Improve efficiency
Reduce starting current
Improving starting torque
Improving Back EMF
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For machine tools, which DC motor can be used?
DC Series motor
DC Shunt motor
DC cumulative compound motor
DC differential compound motor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a DC shunt motor, speed is related to armature current as _____________
Directly proportional to the armature current
Proportional to the square of the current
Independent of armature current
Inversely proportional to the armature current
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the supply frequency of a transformer increases, the secondary output voltage of the transformer
Increase
Decrease
Remain the same
Increase as a square of it
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
Already have an account?
Similar Resources on Wayground
10 questions
Soil Consolidation
Quiz
•
University
15 questions
Características del Motor de Combustión Interna
Quiz
•
University
10 questions
Quiz 1
Quiz
•
University
14 questions
Alternancia: Sesión 1
Quiz
•
University
13 questions
MEM341~Fluid Power Technology~ Pop Quiz I
Quiz
•
University
11 questions
Quiz: High Voltage Measurement
Quiz
•
University
15 questions
FCS-Review
Quiz
•
University
10 questions
INTRUMENTOS DE MEDICION
Quiz
•
University
Popular Resources on Wayground
8 questions
Spartan Way - Classroom Responsible
Quiz
•
9th - 12th Grade
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
14 questions
Boundaries & Healthy Relationships
Lesson
•
6th - 8th Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
3 questions
Integrity and Your Health
Lesson
•
6th - 8th Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
9 questions
FOREST Perception
Lesson
•
KG
20 questions
Main Idea and Details
Quiz
•
5th Grade
Discover more resources for Engineering
20 questions
Disney Trivia
Quiz
•
University
7 questions
Fragments, Run-ons, and Complete Sentences
Interactive video
•
4th Grade - University
7 questions
Renewable and Nonrenewable Resources
Interactive video
•
4th Grade - University
10 questions
DNA Structure and Replication: Crash Course Biology
Interactive video
•
11th Grade - University
7 questions
Force and Motion
Interactive video
•
4th Grade - University
20 questions
Implicit vs. Explicit
Quiz
•
6th Grade - University
14 questions
Ch.3_TEACHER-led
Quiz
•
University
7 questions
Comparing Fractions
Interactive video
•
1st Grade - University