Download AppGovt. JobsFree G.K. & Current AffairsScholarshipBlog
Free PracticeContact
📚 Exam by Category
▾
Objective Questions

Latest BPSC AE Electrical Exam Question (Objective Questions), MCQ in English

Subjects : Electrical Engineering

Question Bank BPSC Assistant Engineer Exam (Electrical) Paper 6 - English
Back to Exam

Electrical Engineering

Question 1Single Answer
What is the basis of energy balance in electromechanical systems?
  1. A
    Input Energy = Output Energy
  2. B
    Input Energy = Mechanical Work + Stored Energy + Losses
  3. C
    Input Energy = Stored Energy Only
  4. D
    Input Energy = Losses Only
Question 2Single Answer
What is the primary coupling field in rotating machines?
  1. A
    Electric field
  2. B
    Magnetic field
  3. C
    Gravitational field
  4. D
    Thermal field
Question 3Single Answer
What is a condition for electromechanical energy conversion?
  1. A
    Static magnetic field only
  2. B
    Mechanical motion and electrical current
  3. C
    High temperature
  4. D
    Low voltage
Question 4Single Answer
How is energy stored in a magnetic field calculated?
  1. A
    ( Wm = Li2 )
  2. B
    ( Wm = frac{1}{2}Li2 )
  3. C
    ( Wm = Psi i )
  4. D
    ( Wm = frac{1}{2}Psi2 )
Question 5Single Answer
What is co-energy in a magnetic system?
  1. A
    ( Wm' = int Psi di )
  2. B
    ( Wm' = frac{1}{2}Li^2 )
  3. C
    ( Wm' = Psi i )
  4. D
    ( Wm' = frac{1}{2}Psi2 )
Question 6Single Answer
How is force derived from stored energy at constant current?
  1. A
    ( F = -frac{partial Wm(x,i)}{partial x} )
  2. B
    ( F = +frac{partial Wm(x,i)}{partial x} )
  3. C
    ( F = -frac{partial Wm'(x,Psi)}{partial x} )
  4. D
    ( F = +frac{partial Wm'(x,Psi)}{partial x} )
Question 7Single Answer
What produces reluctance torque?
  1. A
    Maximum flux linkage
  2. B
    Minimum reluctance path alignment
  3. C
    High voltage
  4. D
    Low current
Question 8Single Answer
What characterizes a singly excited system?
  1. A
    Two electrical inputs
  2. B
    One electrical input
  3. C
    No electrical input
  4. D
    Multiple mechanical inputs
Question 9Single Answer
Which machine is an example of a doubly excited system?
  1. A
    Reluctance motor
  2. B
    Capacitor motor
  3. C
    Electromagnet
  4. D
    Synchronous machine
Question 10Single Answer
What causes transformer EMF?
  1. A
    Conductor motion
  2. B
    Time-varying flux
  3. C
    Constant flux
  4. D
    Mechanical work
Question 11Single Answer
What does the alignment principle in machines ensure?
  1. A
    Minimum flux linkage
  2. B
    Maximum flux linkage
  3. C
    Zero torque
  4. D
    High losses
Question 12Single Answer
How is torque derived at constant flux linkage?
  1. A
    ( T = -frac{partial Wm(theta,i)}{partial theta} )
  2. B
    ( T = +frac{partial Wm'(theta,Psi)}{partial theta} )
  3. C
    ( T = -frac{partial Wm'(theta,Psi)}{partial theta} )
  4. D
    ( T = +frac{partial Wm(theta,i)}{partial theta} )
Question 13Single Answer
What is the energy stored in a linearly permeable system equal to?
  1. A
    Co-energy
  2. B
    Input voltage
  3. C
    Mechanical work
  4. D
    Losses
Question 14Single Answer
What is a dynamic equation used for in electromechanical systems?
  1. A
    Calculating losses
  2. B
    Modeling voltage and torque
  3. C
    Measuring resistance
  4. D
    Determining frequency
Question 15Single Answer
What is the role of the commutator in a DC machine?
  1. A
    Produces AC voltage
  2. B
    Ensures unidirectional torque/voltage
  3. C
    Increases losses
  4. D
    Reduces torque
Question 16Single Answer
What causes armature reaction in DC machines?
  1. A
    Field winding current
  2. B
    Commutator failure
  3. C
    Armature MMF
  4. D
    Brush wear
Question 17Single Answer
How is poor commutation in DC machines improved?
  1. A
    Increasing armature resistance
  2. B
    Using interpoles
  3. C
    Reducing field current
  4. D
    Decreasing speed
Question 18Single Answer
Which DC machine has field winding in parallel with armature?
  1. A
    Series
  2. B
    Compound
  3. C
    Shunt
  4. D
    Separately excited
Question 19Single Answer
What is a characteristic of a series DC motor?
  1. A
    Constant speed
  2. B
    High starting torque
  3. C
    Low torque
  4. D
    Fixed current
Question 20Single Answer
Which test determines DC machine efficiency?
  1. A
    No-load test
  2. B
    Swinburne’s test
  3. C
    Blocked rotor test
  4. D
    Circle diagram
Question 21Single Answer
What is a method for DC motor speed control?
  1. A
    Increasing armature resistance
  2. B
    Reducing supply voltage
  3. C
    Flux control
  4. D
    All of the above
Question 22Single Answer
What is the application of a shunt DC motor?
  1. A
    Traction
  2. B
    Constant speed drives
  3. C
    High starting torque
  4. D
    Variable speed drives
Question 23Single Answer
What compensates armature reaction in DC machines?
  1. A
    Damper windings
  2. B
    Compensating windings
  3. C
    Stator resistance
  4. D
    Rotor resistance
Question 24Single Answer
What is the purpose of a 3-point starter in DC motors?
  1. A
    Speed control
  2. B
    Starting current limitation
  3. C
    Voltage regulation
  4. D
    Torque control
Question 25Single Answer
Which DC machine has both shunt and series fields?
  1. A
    Separately excited
  2. B
    Shunt
  3. C
    Compound
  4. D
    Series
Question 26Single Answer
What does Hopkinson’s test measure in DC machines?
  1. A
    No-load losses
  2. B
    Efficiency and losses
  3. C
    Starting torque
  4. D
    Speed control
Question 27Single Answer
What is a disadvantage of armature resistance control in DC motors?
  1. A
    High efficiency
  2. B
    Increased losses
  3. C
    Constant torque
  4. D
    Fixed speed
Question 28Single Answer
What is the rotor type in a synchronous machine?
  1. A
    Squirrel cage
  2. B
    Salient or cylindrical pole
  3. C
    Wound rotor
  4. D
    Slip ring
Question 29Single Answer
What produces EMF in a synchronous alternator?
  1. A
    Stator rotation
  2. B
    Rotor field rotation
  3. C
    Armature reaction
  4. D
    Damper windings
Question 30Single Answer
What affects armature reaction in synchronous machines?
  1. A
    Rotor speed
  2. B
    Power factor
  3. C
    Stator resistance
  4. D
    Frequency
Question 31Single Answer
Which method determines voltage regulation in alternators?
  1. A
    Swinburne’s test
  2. B
    Synchronous impedance method
  3. C
    No-load test
  4. D
    Blocked rotor test
Question 32Single Answer
What is synchronous reactance in an alternator?
  1. A
    Armature resistance
  2. B
    Reactance due to armature reaction and leakage
  3. C
    Field winding reactance
  4. D
    Stator resistance
Question 33Single Answer
What does a V-curve represent in synchronous motors?
  1. A
    Speed vs. torque
  2. B
    Armature current vs. field current
  3. C
    Voltage vs. frequency
  4. D
    Power vs. load
Question 34Single Answer
How is a synchronous motor started?
  1. A
    Direct-on-line
  2. B
    Using damper windings
  3. C
    Star-delta starter
  4. D
    Rotor resistance
Question 35Single Answer
What is a condition for parallel operation of alternators?
  1. A
    Different frequencies
  2. B
    Same voltage and frequency
  3. C
    Unequal phase sequences
  4. D
    Different power ratings
Question 36Single Answer
What causes hunting in synchronous machines?
  1. A
    Constant load
  2. B
    Load fluctuations
  3. C
    High voltage
  4. D
    Low frequency
Question 37Single Answer
What is the application of a synchronous condenser?
  1. A
    High-speed drives
  2. B
    Power factor correction
  3. C
    Traction
  4. D
    Variable speed drives
Question 38Single Answer
What does the Potier method determine in alternators?
  1. A
    Efficiency
  2. B
    Voltage regulation
  3. C
    Starting torque
  4. D
    Speed control
Question 39Single Answer
What reduces hunting in synchronous machines?
  1. A
    Stator resistance
  2. B
    Damper windings
  3. C
    Armature reaction
  4. D
    Field current
Question 40Single Answer
What is the synchronous motor speed determined by?
  1. A
    Load torque
  2. B
    Supply frequency and poles
  3. C
    Armature current
  4. D
    Rotor resistance
Question 41Single Answer
What is the role of damper windings in synchronous motors?
  1. A
    Speed control
  2. B
    Starting and damping oscillations
  3. C
    Voltage regulation
  4. D
    Torque control
Question 42Single Answer
What produces torque in a 3-phase induction motor?
  1. A
    Stator resistance
  2. B
    Interaction of rotor current and RMF
  3. C
    Armature reaction
  4. D
    Field winding
Question 43Single Answer
What is the air gap power in an induction motor?
  1. A
    Rotor copper loss
  2. B
    Mechanical power
  3. C
    Stator input minus losses
  4. D
    Rotor input power
Question 44Single Answer
Which method starts a 3-phase induction motor?
  1. A
    Direct-on-line
  2. B
    3-point starter
  3. C
    4-point starter
  4. D
    Compensating windings
Question 45Single Answer
What is a speed control method for an induction motor?
  1. A
    Armature resistance control
  2. B
    Stator frequency control
  3. C
    Field flux control
  4. D
    Commutator control
Question 46Single Answer
Which test determines induction motor parameters?
  1. A
    Swinburne’s test
  2. B
    No-load test
  3. C
    Hopkinson’s test
  4. D
    Potier method
Question 47Single Answer
What is the principle of a single-phase induction motor?
  1. A
    Self-starting
  2. B
    Double-field revolving theory
  3. C
    Synchronous speed
  4. D
    Constant torque
Question 48Single Answer
Which single-phase induction motor is self-starting?
  1. A
    Split-phase
  2. B
    Shaded pole
  3. C
    Capacitor-start
  4. D
    All of the above
Question 49Single Answer
What is the application of a squirrel cage induction motor?
  1. A
    Traction
  2. B
    Industrial drives
  3. C
    Constant speed drives
  4. D
    Power factor correction
Question 50Single Answer
What does the circle diagram of an induction motor show?
  1. A
    Efficiency only
  2. B
    Performance characteristics
  3. C
    Starting torque only
  4. D
    Speed control
Important Questions Package

BPSC AE Electrical Exam Online Question Bank Package

Buy BPSC AE Electrical Important Questions, MCQ, question answer in Hindi & English. It will help you to score high marks in BPSC AE Electrical question bank 2026 in Online, PDF & Print study material.

+ Free Monthly Current Affairs, GK & more PDF Download
Sr.Package NameAmount
1.BPSC Assistant Engineer (Electrical) Exam Paper 1 - English
Description : 1000 Question with Answer
₹101 [₹500]
2.BPSC Assistant Engineer (Electrical) Exam Paper 1 - English
Description : 2000 Question with Answer
₹141 [₹500]
3.BPSC Assistant Engineer (Electrical) Exam Paper 1 - English
Description : 3000 Question with Answer
₹171 [₹500]
4.BPSC Assistant Engineer (Electrical) Exam Paper 2 - Hindi
Description : 1000 Question with Answer
₹101 [₹500]
5.BPSC Assistant Engineer (Electrical) Exam Paper 2 - Hindi
Description : 2000 Question with Answer
₹141 [₹500]
6.BPSC Assistant Engineer (Electrical) Exam Paper 2 - Hindi
Description : 3000 Question with Answer
₹171 [₹500]
7.BPSC Assistant Engineer (Electrical) Exam Paper 3 - Hindi
Description : 1000 Question with Answer
₹101 [₹500]
8.BPSC Assistant Engineer (Electrical) Exam Paper 3 - Hindi
Description : 2000 Question with Answer
₹141 [₹500]
9.BPSC Assistant Engineer (Electrical) Exam Paper 3 - Hindi
Description : 3000 Question with Answer
₹171 [₹500]
10.BPSC Assistant Engineer (Electrical) Exam Paper 3 - English
Description : 1000 Question with Answer
₹101 [₹500]
11.BPSC Assistant Engineer (Electrical) Exam Paper 3 - English
Description : 2000 Question with Answer
₹141 [₹500]
12.BPSC Assistant Engineer (Electrical) Exam Paper 3 - English
Description : 3000 Question with Answer
₹171 [₹500]
13.BPSC Assistant Engineer (Electrical) Exam Paper 4 - Hindi
Description : 1050 Question with Answer
₹101 [₹500]
14.BPSC Assistant Engineer (Electrical) Exam Paper 4 - English
Description : 1100 Question with Answer
₹101 [₹500]
15.BPSC Assistant Engineer Exam (Electrical) Paper 5 - Hindi
Description : 1050 Question with Answer
₹101 [₹500]
16.BPSC Assistant Engineer Exam (Electrical) Paper 5 - English
Description : 1150 Question with Answer
₹101 [₹500]
17.BPSC Assistant Engineer Exam (Electrical) Paper 6 - Hindi
Description : 840 Question with Answer
₹101 [₹500]
18.BPSC Assistant Engineer Exam (Electrical) Paper 6 - English
Description : 950 Question with Answer
₹101 [₹500]
19.BPSC Assistant Engineer (Electrical) Exam Paper 1 - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
20.BPSC Assistant Engineer (Electrical) Exam Paper 2 - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
21.BPSC Assistant Engineer (Electrical) Exam Paper 3 - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
22.BPSC Assistant Engineer (Electrical) Exam Paper 3 - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
23.BPSC Assistant Engineer (Electrical) Exam Paper 4 - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
24.BPSC Assistant Engineer (Electrical) Exam Paper 4 - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
25.BPSC Assistant Engineer Exam (Electrical) Paper 5 - Hindi
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
26.BPSC Assistant Engineer Exam (Electrical) Paper 5 - English
Description : 1000 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
27.BPSC Assistant Engineer Exam (Electrical) Paper 6 - Hindi
Description : 840 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
28.BPSC Assistant Engineer Exam (Electrical) Paper 6 - English
Description : 950 Question & Answer Download in PDF (Send by Email)
₹151 [₹450]
29.BPSC Assistant Engineer (Electrical) Exam Paper 1 Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
30.BPSC Assistant Engineer (Electrical) Exam Paper 2 Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹400 [₹800]
31.BPSC Assistant Engineer (Electrical) Exam Paper 3 Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹450 [₹800]
32.BPSC Assistant Engineer (Electrical) Exam Paper 3 Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
33.BPSC Assistant Engineer (Electrical) Exam Paper 4 Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹450 [₹800]
34.BPSC Assistant Engineer (Electrical) Exam Paper 4 Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
35.BPSC Assistant Engineer Exam (Electrical) Paper 5 Question Bank Book - Hindi
Description : 1000 Question with Answer (Printed Material)
₹450 [₹800]
36.BPSC Assistant Engineer Exam (Electrical) Paper 5 Question Bank Book - English
Description : 1000 Question with Answer (Printed Material)
₹390 [₹600]
37.BPSC Assistant Engineer Exam (Electrical) Paper 6 Question Bank Book - Hindi
Description : 840 Question with Answer (Printed Material)
₹450 [₹800]
38.BPSC Assistant Engineer Exam (Electrical) Paper 6 Question Bank Book - English
Description : 840 Question with Answer (Printed Material)
₹390 [₹600]
39.BPSC Assistant Engineer Exam (Electrical) Paper 6 Question Bank Book - English
Description : 950 Question with Answer (Printed Material)
₹390 [₹600]
Back to Exam