DPDC,NWPGCL,WZPDCL Electrical Assistant Engineer Job Question Papers

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DPDC,NWPGCL,WZPDCL Electrical Assistant Engineer Job Question Papers

1. English:                                                       10/15

• Translations
• Correction of Sentences
• Phrase Idioms
• Small Paragraph etc.

2. General Knowledge:                                              10/15

Current Affairs (Games, Awarded, Ministry, Electricity, Novel Prize etc)

3. Math (Like EMBA of DU):                                     10/15
4. Department:                                                                       50/60

• Very Short Quest./MCQ:       10/15
• Medium Quest.Mathematical:   35/40

Circuit (1 x 4)

Dc circuit solution (Thevn. Maxm. Power. Super position, Nodel Analysis, Complex circuit etc.)

MCQ

AC circuit: (1x 4)

AC fundamentals, V=vSinwt, Polar-rect related prob.

Resonance circuit

MCQ

Electronics: (4×4=16)

• Clippers, Clampers Circuit (Draw i/p, o/p curve) (1×4)
• Characteristics curves (all configurations)
• DC biasing (Fixed-bias, Emitter-stabilized bias, oltage-divider bias,DC bias with voltage feedback circuit,try to solve critical configuration and with PNP)
• Read summary from end of the chapter 2,3,4,5
• Op-amp (Inverting, Non-inverting and Summing  amplifier)
• Integrator,Differntiator circuit (draw o/p curves with i/p sine,square waves)
• Active Filteer (draw circuit diagram,input,output curves (Rectifier,Inverter)

Digital Electronics:

(Less Impt.for BUET Exam)

• Show that a positive-logic NOR gate is the same

Physical gate as a negative-logic NAND and vice versa

• Basic gate implement with NOR and NAND gate

Machine:                                                                           ( 2 x 4=8)

• Problem on Transformer test,loss and efficiency calculation,
• Condition for Parallel operation of single-phase&three-phase Transformer
• Clear concept on V_V connection and Vector Group
• Instrument transformer
• Difference between generation and motor
• Significance of the Back EMF
• Torque and power relation
• Why Starter use?
• Equivalent circuit of an Induction motor
• Slip and related problem
• Full-load torque,Maximum torque and  starting torque related problem
• Power stages in an Induction motor and related problem
• Why is synchronizing?
• Condition for synchronizing of a single and three-phasw Alternator
• V-curve
• Comparison between synchronous Motor & Induction Motor
• Modulation &Demodulation (definition,input/output wavefrom,modulation index,equation ,and problem)
• Digital Modulation (input/output wavefrom, equation)
• Nyquist Sampling Theorem
• Bit Error Rate (BER) related problem
• Define Erlang,One Erlang and related problem
• OSI reference model and functions
• Serial & Parallel data transmission
• General,Power & Communication related abbreviations

         Power System:                                                                                (2 x 4= 8)

• Load curves,Load duration curve/Chronological load curve
• Definition and concept on connected load,Maximum demand, Demand factor, Average load,Load factor,Diversity factor, Plant capacity factor and Plant use factor also related problem
• What do you mean by power system?Draw a typical power system one-line diagram
• Power factor and related problem
• Why high voltage transmits?
• Ferranti Effect
• Skin Effect
• Corona Effect
• Relay circuit and its operation
• Difference between Switch & CB
• What are the Faults in a power system?
• Various types of sub-stations,Transmission line rating and generating Voltage in Bangladesh
• Concept on SCADA and draw it’s Diagram
• Concept on Renewable energy
• The one-line diagram,Reactance diagram and Impedance Diagram
• Importance of Load flow study,related problem
• What information obtained frpm Load-flow study?
• What are Sequence Impedance and Sequence Network?
• Draw Reactance and Zero-sequence diagram from one-line diagram

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