Electrical MCQ Questions and Answers
Practice ModeShowing 10 of 17 questions
Q1
Find the total resistance when 2 Ohm and 4 Ohm resistances are in parallel.
Answer: Option A
Q2
Expression for mmf in terms of field strength is
Answer: Option C
Q3
is the property of magnetic which opposes the flow of flux through it.
Answer: Option C
Q4
is the property of electrical conductor which oppose the flow of current through it
Answer: Option D
Q5
Reluctance is expressed in
Answer: Option C
Q6
Reciprocal of reluctance is termed as
Answer: Option B
Q7
Ohm’s law for electric circuit will be
Answer: Option B
Q8
Ohm’s law for magnetic circuit will be
Answer: Option C
Q9
The chart given below indicates four different conditions under which an Induction motor may be called upon to operate, with a constant shaft load.
Applied Rotor voltage Frequency Resistance
1. Normal Normal Normal
2. 80% Normal Normal
3. 80% 80% Normal
4. Normal Normal 80%
The operating conditions which lead to increasing values of running slips will be In the sequence
Answer: Option C
Q10
Consider the following statements about the operation of a three-phase induction motor running at full load:
If one of the supply line fuse blows off, the motor will
1. Stall
2. Continue to run with increased slip,
3. continue to run with normal supply current
4. continue to run with excessive supply current
Of these statements
Answer: Option D