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Home⇒ Engineering⇒
Networks analysis and synthesis
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ The units of resistivity are ohm-metre. TRUE [other wrong options] [Discuss in forum] FALSE |
Q2 ⇒ Two coils X and Y have self inductances of 5 mH and 10 mH and mutual inductance of 3 mH. If the current in coils X change at a steady rate of 100 A/s, the emf induced in coil Y is 0.3 V [other wrong options] [Discuss in forum] 0.5 V 1 V 1.5 V |
Q3 ⇒ Permeability is analogous to conductivity [other wrong options] [Discuss in forum] resistivity retentivity coercivity |
Q4 ⇒ A capacitor behave to d.c. as an open-circuit [other wrong options] [Discuss in forum] short-circuit it behaves to a.c. none of these. |
Q5 ⇒ A parallel ac circuit in resonance will have a high impedance [other wrong options] [Discuss in forum] act like a resistor of low value have current in each section equal to the line current have a high voltage developed across each inductive and capacitive section |
Q6 ⇒ While using Maxwell bridge, the Q factor of a coil is obtained as ωCR [other wrong options] [Discuss in forum] 1/ωCR ωC/R R/ωC |
Q7 ⇒ In a specimen of cast iron, a field strength of 400 AT/m cause a flux density of 0.6 T. In a specimen of silicon steel, the same value of H would cause B to be 0.6 T or less than 0.6 T [other wrong options] [Discuss in forum] 0.6 T more than 0.6 T less than 0.6 T |
Q8 ⇒ A tie set schedule shows incidence of branches to loops [other wrong options] [Discuss in forum] incidence of branches to nodes incidence of nodes to loops none of the above |
Q9 ⇒ The reading of the voltmeter in figure will be __________ v zero [other wrong options] [Discuss in forum] 100 150 200 |
Q10 ⇒ In figure, the current after a long time after closing of switc 0.0833333333333333 [other wrong options] [Discuss in forum] 0.0416666666666667 0 infinity |
Q11 ⇒ The superposition theorem is applicable to linear responses only [other wrong options] [Discuss in forum] linear, non-linear and time variant responses linear and non-linear resistors only none of the above |
Q12 ⇒ In gases the flow of current is due to electrons, positive ions and negative ions [other wrong options] [Discuss in forum] positive ions only electrons only electrons and positive ions |
Q13 ⇒ The polynomial P (s) = (s - 1) (s2 + 1) (s + 2) (s + 3) is strictly Hurwitz [other wrong options] [Discuss in forum] Hurwitz but not strictly Hurwitz not Hurwitz anti/Hurwitz |
Q14 ⇒ Assertion (A): When excited by a unit step voltage, an inductor behaves as open circuit at t = 0. Reason (R): Inductance has the property of inertia. Both A and R are true and R is correct explanation of A [other wrong options] [Discuss in forum] Both A and R are true and R is not the correct explanation of A A is true but R is false A is false but R is true |
Q15 ⇒ For a given line voltage, four heating coils will produce maximum heat when connected all in parallel [other wrong options] [Discuss in forum] all in series with two parallel pairs in series one pair in parallel with the other two in series |
Q16 ⇒ For H(s) to be positive real, the condition Re[H(jω)] ≥ 0 for 0 ≤ ω ≤ ∞ is a necessary condition [other wrong options] [Discuss in forum] a sufficient condition a necessary and sufficient condition is not a necessary condition |
Q17 ⇒ Two capacitors of 2 μF and 4 μF capacitance are connected in series across a 30 V dc battery. After the capacitors have been charged, the voltage across them will be 20 V and 10 V [other wrong options] [Discuss in forum] 15 V each 10 V and 20 V 30 V each |
Q18 ⇒ RMS value of a square wave is the same as peak value. TRUE [other wrong options] [Discuss in forum] FALSE |
Q19 ⇒ In the two ports network shown in the figure, Z12 and Z21 are, respecti 0 and - βr0 [other wrong options] [Discuss in forum] re and βr0 0 and βr0 re and - βr0 |
Q20 ⇒ For a reactance function H(s) Re [H(jω)] is zero for ω ≥ 0 [other wrong options] [Discuss in forum] Re [H(jω)] is positive for ω ≥ 0 Re [H(jω)] is positive or zero for ω ≥ 0 Re [H(jω)] is zero or negative for ω ≥ 0 |
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