As load on an induction motor goes on increasing______________?
Correct answer: D. its power factor goes on increasing up to full load and then it falls again
- A. its power factor goes on decreasing
- B. its power factor remains constant
- C. its power factor goes on increasing even after full load
- D. its power factor goes on increasing up to full load and then it falls again
Explanation
As load increases, the motor draws more active current and its power factor improves up to approximately full load. Beyond full load, increased slip and reactive effects cause the power factor to fall.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electrical Machines
1,061 free Electrical Machines MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrical Machines questions
If a 3-phase supply is given to the stator and rotor is short circuited rotor will move___________?
It is advisable to avoid line starting of induction motor and use starter because____________?
The speed characteristics of an induction motor closely resemble the speedload characteristics of which of the following machines?
Slip ring motor is recommended where____________?
In an induction motor the relationship between stator slots and rotor slots is that_____________?
A 3-phase induction motor delta connected is carrying too heavy load and one of its fuses blows out. Then the motor______________?