UPSC Electronics Department Solved Paper

Can any buddy here provide me the last year question paper of IES Electronics And Telecommunication Engineering Exam which is conducted by UPSC????

[Arvind Kumar]

As per your request here I am sharing the last year question paper of IES Electronics And Telecommunication Engineering Exam which is conducted by UPSC
1. Knockoff sounds are used in

a. In blood flow measurements
b. In blood pressure measurements
c. In heart valve functioning
d. As a reference for sound level measurement

Ans-b

2. CMRR in an ECG amplifier when input impedance is 2MΩ and difference of electrode skin contact as 1kΩ is

a. 1000
b. 2000
c. 3000
d. 5000

Ans-a

3. A graphic record of heart sound is

a. ECG
b. Phono-cardiogram
c. Vector-cardiogram
d. Electroencephalogram

Ans-b

4. To increase the magnifying power of a telescope , which of the following should be increased

a. Focal length of the objective
b. Focal length of the eye piece
c. Aperture of the objective
d. Aperture of the eye piece

Ans-a

5. In nuclear instrumentation , heaviest and flow moving particles are

a. Beta particles
b. Alpha particles
c. Gamma rays
d. Protons

Ans-b

6. Synchrono is a transducer

a. Variable reluctance
b. Parabolic
c. Angular position
d. Synchronization

Ans- c

7. The particles of pirani gauge is based on

a. Humidity of the medium
b. Thermal conductivity of the medium
c. Combustibility of the medium
d. None

Ans- b

8. Two lenses having power +6D and – 4D are placed in contact. The power of the combination is

a. -2D
b. -4D
c. +4D
d. +2D

Ans- d

9. Piezoelectric crystal can be used to measure

a. Temperature
b. Velocity
c. Acceleration
d. Flow

Ans- c

10. A photo conductive cell is useful for

a. High frequency application
b. Medium freq. application
c. Low freq application
d. All of these

Ans- c

11. Moire fringes are used for measurements of rotary displacement along with

a. Contact type encoder
b. Optical encoder
c. Both a and b
d. None of these

Ans- b

12. When ECG is recorded by connecting 2-electrodes, one is left arm and other in left leg , recording is made in

a. Lead I configuration
b. Lead II configuration
c. Both a and b
d. None

Ans-d

13. In diagnostic application ultrasound is both generated and detected by the piezoelectric effect in the

a. MF and HF ranges
b. LF ranges
c. VLF ranges
d. EHF ranges

Ans- a

14. The photo diode as compared to the photo transistor has

a. Fast switching time
b. Lower sensitivity
c. Higher size for the same value of o/p current
d. All of these

ans- b

15. One gram of hemoglobin when fully saturated carries of gas

a. 0.34 ml
b. 0.68ml
c. 1.02 ml
d. 1.34ml

Ans- d

16. Newtons rings are formed when an air film is enclosed between

a. Two convex surfaces
b. Plane and concave surfaces
c. Two concave surfaces
d. Plane and convex surfaces

Ans- d

17. If half life of the radio active radon is 3.8 days, then the time at the end of which 1/20th of the radon sample will remain undecayed is

a. 3.8 days
b. 16.5 days
c. 33 days
d. 76 days

Ans- b

18. He-Ne laser has wavelength

a. 514.5nm
b. 632.8 nm
c. 1.06 µm
d. 10.6 µm

Ans- b

19. % of blood volume in platelets when diameter of platelets is about 2µm is

a. 0.1%
b. 0.7%
c. 0.5%
d. None

Ans- a

20. What is the deflection at center for a pressure of 150 kN/m when pressure is 300 kN/m^2 ?

a. 0.0105
b. 0.0205
c. 0.0305
d. 0.0405

Ans- b