IES Exam Question

My brother is preparing for IES Exam. He has completed syllabus and needs old year question papers. So is there anyone who will give link to download old year question papers of IES Exam?

[shikha]

As you are looking for old year question papers of IES Exam, so here I am providing following papers:

IES (Electronics and Communication) Exam Question Paper
1. If a system produces frequencies in the output are not present in the input, then the system
cannot be
(A) Minimum phase system (B) Linear shift invariant
(C) Stable and causal (D) Stable and linear
Key: (B)

2. In eddy current damping system, the disc employed should be of
(A) Conducting and magnetic material
(B) Conducting but non-magnetic material
(C) Magnetic but non-conducting material
(D) Non-conducting and non-magnetic material
Key: (B)

3. Which of the following can act as in inverse transducer?
(A) LVDT (B) Strain
(C) Piezo electric crystal (D) Bimetal strip
Key: (C)

4. Which one of the following thermocouple pairs has maximum sensitivity around 273 K?
(A) Nichrome-constant (B) Copper-Nickel
(C) Platinum-constantan (D) Nickel-constantan
Key: (A)

5. Maximum power will be delivered from an ac source to a resistive load in a network when
the magnitude of the source impedance is equal to
(A) Half the load resistance (B) Double the load resistance
(C) The load resistance (D) Zero
Key: (D)

6. The dc resistivity and permeability exhibited by a type 1 superconductor are respectively:
(A) Zero and zero (B) Zero and unity
(C) Unity and zero (D) Unity and Unity
Key: (A)

7. Statement (I): One of the mechanism by which a transistor’s usefulness may be
terminated, as the collector voltage is increased, is called punch
through.
Statement (II): Punch through results from the increased width of the collectorjunction
transition region with increased collector-junction voltage.
Key: (A)

8. Statement (I): In ferroelectric materials, domains with permanent electric dipoles
may be created that would align along external electric field.
Statement (II): Ferroelectric materials undergo phase transformation of symmetric
to asymmetric structure below a critical temperature.
Key: (B)

9. Statement (I): Conduction takes place in an enhancement MOSFET only for gate
voltages below the threshold level.
Statement (II): In an enhancement MOSFET, a channel of semiconductor of the
same type as the source and drain is induced in the substrate by a
positive voltage applied to the gate.
Key: (D)

10. Statement (I): MOSFET is a field effect transistor whose drain current is
controlled by the voltage applied at the gate.
Statement (II): MOSFET is an insulated gate FET
Key: (A)

11. Statement (I): All passive components can be fabricated in a single chip.
Statement (II): As opposed to discrete circuits where all components are separately
inserted and connected, in an integrated circuit, they are
simultaneously created on a chip of semiconductor material during
manufacturing.
Key: (B)

12. Statement (I): The total energy of an energy signal falls between the limits 0 and
Statement (II): The average power of an energy signal is zero.
Key: (B)

13. Statement (I): Sinusoidal signals are used as basic function in electrical systems.
Statement (II): The response of a linear system to a sinusoidal input function
remains sinusoidal.
Key: (A)

14. Statement (I): Dirichlet’s conditions restrict the periodic signal x(t), to be
represented by Fourier series, to have only finite number of
maximal and minima.
Statement (II): x(t) should possess only a finite number of dis-continuities.
Key: (B)

15. Statement (I): Ferrite cored coils are used in high frequency tuned circuits.
Statement (II): Ferrite cored coils have high Q as compared to iron-cored coils.
Key: (A)