MGVCL Exam Paper (30-07-2021 Shift 1) Which of the following is an independent malicious program that spread copies of itself from computer to computer? Trap door Trojan horse Virus Worm Trap door Trojan horse Virus Worm ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) A coil having an inductance of 100 mH is magnetically coupled to another coil having an inductance of 900 mH. The coefficient of coupling between the coils is 0.45. Calculate the equivalent inductance if the two coils are connected in series aiding. 1135 mH 1270 mH 932 mH 730 mH 1135 mH 1270 mH 932 mH 730 mH ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Mutual inductance (M) = k*√(L1*L2)k = 0.45M = 0.45*√(900*100*10⁻⁶) = 135 mHLeq = L1 + L2 + 2MLeq = 900 + 100 + 270Leq = 1270 mH
MGVCL Exam Paper (30-07-2021 Shift 1) Fill in the blanks with suitable Preposition from the given alternatives.The match was dedicated ___ Indian fast bowler Zaheer, who has announced his retirement from international cricket to from against since to from against since ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) The current flowing to a balanced delta connected load through line 'a' is 15 A when the conductor of line 'b' is open. With the current in line 'a' as reference, compute the symmetrical components of the line currents. Assume the phase sequence of 'abc'. Ia₀ = 0 AIa₁ = (7.5 + j4.33) AIa₂ = (-7.5 - j4.33) A Ia₀ = 0 AIa₁ = (7.5 - j13) AIa₂ = (7.5 + j13) A Ia₀ = 0 AIa₁ = (-7.5 - j13) AIa₂ = (-7.5 - j4.33) A Ia₀ = 0 AIa₁ = (7.5 + j4.33) AIa₂ = (7.5 - j 4.33) A Ia₀ = 0 AIa₁ = (7.5 + j4.33) AIa₂ = (-7.5 - j4.33) A Ia₀ = 0 AIa₁ = (7.5 - j13) AIa₂ = (7.5 + j13) A Ia₀ = 0 AIa₁ = (-7.5 - j13) AIa₂ = (-7.5 - j4.33) A Ia₀ = 0 AIa₁ = (7.5 + j4.33) AIa₂ = (7.5 - j 4.33) A ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For the given question,Ib = 0Ia = -IcCalculation:Ia1 = 1/3*(Ia + a*Ib + a²*Ic)= 1/3*(15 + 15∟-120°)= 7.5 + j*4.33 AIa2 = 1/3*(Ia + a²*Ib + a*Ic)= (1/3)*(15 + 15∟120°)= 7.5 - j*4.33 AIao = (1/3)*(Ia + Ib + Ic)= (Ia - Ia)= 0
MGVCL Exam Paper (30-07-2021 Shift 1) દુર્ગતિ' શબ્દનો વિરુદ્ધાર્થી શબ્દ ક્યો છે? અદુર્ગતી કુગતિ સુગતિ સળંગગતિ અદુર્ગતી કુગતિ સુગતિ સળંગગતિ ANSWER DOWNLOAD EXAMIANS APP
MGVCL Exam Paper (30-07-2021 Shift 1) Consider the following two statements and choose the correct answer.Statement 1: The V-curves of a synchronous motor show relationship between armature current and supply voltage.Statement 2: The plot of power factor against the field current of synchronous motor is known as inverted V curves. Both Statement 1 and Statement 2 are FALSE Statement 1 is TRUE and Statement 2 is FALSE Statement 1 is FALSE and Statement 2 is TRUE Both Statement 1 and Statement 2 are TRUE Both Statement 1 and Statement 2 are FALSE Statement 1 is TRUE and Statement 2 is FALSE Statement 1 is FALSE and Statement 2 is TRUE Both Statement 1 and Statement 2 are TRUE ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The V-curves of a synchronous motor show relationship between Armature current (Ia) and Excitation current (If).The Inverted V-curves of a synchronous motor show relationship between power factor (pf) and field excitation (If).
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