Question 1: In Compound Generator Which of the following losses are constant?
- Copper losses
- Magnetic losses
- Mechanical Losses
BASIC
NEC 2023
DC Generator theory
Free online quiz on DC Generator theory which includes losses of dc generator, construction, types and operation of DC Generator.
TOPICS COVERED
Electrical Practice Questions
How this test works
Read each question carefully
Look for absolute words like always / never — they often distinguish the right answer.
Manage your time
You have 15 min for 10 questions. Skip tough ones and come back.
Progress is auto-saved
Your answers are saved locally — a page refresh won't lose your work.
Review your answers
After submitting you'll see every explanation and your NEC references.
How to Use This Practice Test
This DC Generator theory has 10 questions with detailed answers and NEC references. Take the full test, review every wrong answer, and look up the NEC article it references before moving on.
Tip: Work through Ohm's Law problems on paper — don't just read the answers, calculate them yourself.
- Topics covered: Voltage, current, resistance, Ohm's Law, series/parallel circuits, and electrical safety.
- Passing score: Aim for 90%+ on basic theory — these fundamentals underpin every advanced topic.
- Questions: 10 multiple-choice, one correct answer each
10
Questions
15 min
Time
70%
Pass
Timer starts immediately. Progress is auto-saved.
0
Correct0
Wrong0s
TimeDC Generator theory — Question List
Question 2: If a DC Generator is Operated at lower speed than rated speed, the DC generator ..............
- may be over heated
- may be over excited
- will damage
Question 3: The voltage of a DC Generator can be controlled by ............
- varying the prime mover speed
- varying the field current
- changing the brush positions
Question 4: Which of the following generator part changes the induced AC voltage to the DC voltage at generator terminals?
- Armature
- commutator
- brushes
- rotor
Question 5: In DC Generator, which of the following is the effect of <em>armature reaction</em>?
- Motoring effect
- high sparking at brushes on commutator
- damages the field winding
- damages the armature winding
Question 6: Which of the following is not required in DC generator to generate DC Voltage?
- magnetic field
- conductor
- relative motion
- slip rings
Question 7: The torque developed in DC Generator is inversely proportional to armature current.
- True
- False
Question 8: Which of the following DC Generator is used when a constant output voltage is required?
- DC Shunt Generator
- DC Series Generator
Question 9: In DC Generator, The armature current is inversely proportional to load current.
- True
- False
Question 10: In DC Series generator, the terminal voltage changes with the change in load current.
- True
- False
Student Reviews
No reviews yet — be the first to share your experience!
Leave a Review