# Practice Test: Question Set - 04

**1. The superposition theorem is applicable to**

- (A) Voltage only

- (B) Current only

- (C) Both current
and voltage

- (D) Current, voltage and power

**2. Superposition theorem can be applied only to circuits having**

- (A) Resistive
elements

- (B) Passive
elements

- (C) Nonlinear
elements

- (D) Linear
bilateral elements

**3. For a voltage source**

- (A) Terminal
voltage is always lower than source e.m.f.

- (B) Terminal
voltage cannot be higher than source e.m.f.

- (C) The source
e.m.f. and terminal voltage are equal

- (D) None of
these

**4. “Any number of current sources in parallel may be replaced by a single current source whose current is the algebraic sum of individual currents and source resistance is the parallel combination of individual source resistances”.**

**The above statement is associated with**

- (A) Thevenin’s
theorem

- (B) Millman’s
theorem

- (C) Maximum
power transfer theorem

- (D) None
of the above

**5. For high efficiency of transfer of power, internal resistance of the source should be**

- (A) Equal
to the load resistance

- (B) Less
than the load resistance

- (C) More
than the load resistance

- (D) None
of the above

**6. For maximum transfer of power, internal resistance of the source should be**

- (A) Equal
to load resistance

- (B) Less
than the load resistance

- (C) Greater
than the load resistance

- (D) None
of the above

**7. In a series parallel circuit, any two resistances in the same current path must be in**

- (A) Series
with each other

- (B) Parallel
with each other

- (C) Series with
the voltage source

- (D) Parallel
with the voltage source

**8. Application of Norton’s theorem to a circuit yields**

- (A) Equivalent
current source and impedance in series

- (B) Equivalent
current source and impedance in parallel

- (C) Equivalent
impedance

- (D) Equivalent
current source

**9. In Thevenin’s theorem, to find Z**

- (A) All
independent current sources are short circuited and independent voltage sources
are open circuited

- (B) All
independent voltage sources are open circuited and all independent current
sources are short circuited

- (C) All
independent voltage and current sources are short circuited

- (D) All
independent voltage sources are short circuited and all independent current
sources are open circuited

**10. Choose the incorrect statement.**

- (A) A
branch formed by the parallel connection of any resistor R and open circuit has
the characteristic of an open circuit

- (B) A
branch formed by the parallel connection of any resistor R and a short circuit
has the characteristic of a short circuit

- (C) A
branch formed by the series connection of any resistor R and an open circuit
has the characteristic of an open circuit

- (D) A
branch formed by the series connection of any resistor R and a short circuit
has the characteristic of resistor R

**View All Answers**

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