Circuit Theory Quiz#2, MCQs

NOTE: Attempt all Questions to see the Result at the bottom of this page.

The Timer has started 10:00

  1. 1)

    The reference/common point among all the nodes without insertion of any component between them is called

    • A) node
    • B) ground
    • C) mesh
    • D) loop

  2. 2)

    In a Norton's theorem , norton's resistance Inor is calculated

    • A) at open terminals of the open circuit
    • B) by short circuiting the open terminal of the circuit
    • C) across the load
    • D) any where

  3. 3)

    In a thevenin's theorem , the condition to find Vth is

    • A) to add more load resistance
    • B) to remove load resistance
    • C) to convert load into short circuit
    • D) open circuit the current source

  4. 4)

    Using superposition theorem, for a circuit containing independent sources, any remaining voltage source is

    • A) remain same
    • B) made zero by replacing them by open circuit
    • C) made zero by replacing them by capacitor
    • D) made zero by replacing them by short circuit

  5. 5)

    In Norton, s theorem , while calculating Rn

    • A) Short circuit the current source and open circuit the voltage source
    • B) open circuit the current source and short circuit the voltage source
    • C) insert the load
    • D) just open circuit current source

  6. 6)

    The primary function of a filter is to

    • A) Minimize ac input variations
    • B) Suppress odd harmonics in the rectifier output
    • C) Stabilize dc level of the output voltage
    • D) Remove ripples from the rectified output

  7. 7)

    The PIV of a half wave rectifier circuit with a shunt capacitor filter is

    • A) 2Vm
    • B) Vm
    • C) Vm/2
    • D) 3Vm

  8. 8)

    The ripple factor of a bridge rectifier

    • A) 1.21
    • B) 0.406
    • C) 0.812
    • D) 1.11

  9. 9)

    Three bulbs are connected in series of a battery, what would happen if any one bulb is opened.

    • A) half of current will flow
    • B) same current will flow
    • C) no current will flow
    • D) 2/3 current will flow

  10. 10)

    Zener breakdown occurs

    • A) Mostly in germanium junctions
    • B) Due to rupture of covalent bond
    • C) In lightly doped-junctions
    • D) Due to thermally –generated minority carriers