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KAMLA NEHRU INSTITUTE OF PHYSICAL AND SOCIAL SCIENCE, FARIDIPUR SULTANPUR, SUBJECT — Basic electrical engineering, , Course - Diploma subject =EE-2, , Year/Branch - 2% /EC 7.T = lhr, , 1-Which of the following motors is used in ceiling fan?, Prufeiae 9 8 atta oh ailew after Oa A ete a) are) Be, (A) Universal motor, , (B) Synchronous motor, , (C) Series motor, , (D) Induction motor, , 2-Number of parallel path in wave winding is:?, aa ween A qursiae vy a aan?, , (A)2, , (B) 3, , (QO4, , (D)6, , 3-CT is used for measuring?, , CT AIGA & fery wen fore are e, , (A) Voltage, , (B) Frequency, , (C) Power factor, , (D) Alternating current
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4-Active power in 3 phase circuit is:, 3 ba afte Yalta fda 8:7, , (A) v3 V.L Cos, (B) 3 VI, Cosp, (CQ) V2 Vil, Cosp, (D)2 VI, Cosp, , 5-Zener diodes are commonly used as:?, (A) Rectifier, , (B) Amplifier, (C) Voltage regulator, (D) Filter, , 6-Unit of reluctance:?, (A) Ampere Turns/Weber, , (B) Weber Turns, , (©) Henry, (D) Weber Turns/Ampere, , 7-Unit of luminous intensity is?, (A) Lumen, , (B) Lux, , (C) Lumen/m:, (D) Candela, , 8-Which of the following is secondary cell?, (A) Dry cell, , (B) Leclanche cell, , (C) Voltaic cell
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(D) Lead acid cell, , 9-Energy stored in inductor is:, , (A) W = (1/4)LP, , (B) W = (1/2)LI, , (OW =(1/2)L1, , (D) W = (1/2)LA, , 10-The power factor of pure resistive circuit is, (A) Zero, , (B) Leading, , (C) Lagging, , (D) Unity, , 11-The time taken by an alternating quantity to complete one cycle:?, , We Gh FI eet & fee Ue Aas at at fe aT a, , (A) Time period, (B) Frequency, (C) Angular velocity, , (D) Time constant, , 12- In an AC circuit (sinewave) with R and L in series, , A. Voltage across R and L 180° out of face, , B. The voltage across R lags the voltage across L by 90°, C. The voltage across R leads the voltage across L. by 90°, D. Voltage across R and L are in phase, , 13- In AC circuit the power curve is a sine wave having
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et athe Ff ore wed eH Ug aa ele e fore?, , A. Double the frequency of voltage, , B. Same frequency as that of voltage, , C. Half the frequency of the voltage, , D. Three times the frequency of the voltage, , 14-Speed of de motor is directly proportional to____ and inversely proportional to:, SA hex ah ae Ad__-B wurqurdl aie & ayesurqurch well B7, , (A) Flux, back emf, , (B) Current, back emf, , (C) Backemf, flux, , (D) Backemf, voltage, , 15-Inductive reactance of a coil having inductance 4 H:, , (A) 796 x 10°, (B) 1256.9, , (Q) 3140, (D) 628Q, , 16-Generator efficiency is maximum when, (A) Variable loss is minimum, , (B) Constant loss = Variable loss, (© Constant loss is minimum, , (D) Constant loss is half of the variable loss, , 17-Effective capacitance of capacitors connected in series, is, (A)C=C.+C+C+ Gr..., (B) 1/C = 1/C.+1/C.+ 1/C,+ 1/G+......
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(QC = 1/C,+ 1/C.+ 1/C,+ 1/C.+......, (D) C = 1/C,~ 1/C.+ 1/C.~ 1/ C.F..., , 18-Which is active component?, (A) Capacitor, , (B) Transistor, (©) Inductor, (D) Resistor, , 19-Form factor =, (A) rms value / average value, , (B) average value / rms value, (© rms value / peak value, (D) peak value / rms value, , 20-Admittance is the ___ of conductance and suspectance., (A) Arithmetic mean, , (B) Arithmetic difference, , (© Vector sum, , (D) Reciprocal, , (A) PNP transistor, , 22-Resultant flux of 3 phase induction motor is:?\, 3 tha goa Aleem chor eras, , (A) (V3/2)~pm, , (B) (3/2)pm, , ()3.gm, , (D) 2 gm, , 23-Which has negative temperature coefficient resistance?
