2. 1.What is the range of micro wave in EM wave? a)10 9 to 10 11 Hz b)3×10 8 to 3×10 11 c)3×10 9 to 3×10 11 d)10 8 to 10 11

3. 2.What is the range of wavelength for Microwaves? a) 30cm to 0.3 cm b)30m to 0.3 m c)30 cm to 0.3m d)30mm to 0.3cm

4. 3.Which frequency is not matched with its band? a)VHF =0.5 to 1.0 b)Ku=12.4 to18.0 c)S=4.0 to 8.0 d)V=75.0 to 110.0

5. 4.Which technique is suitable to make IC? a) Hybrid b) Monolithic c) both hybrid and Monolithic d) typrid

6. 5.Which parameters are used to analyze microwave circuits? a) Hybrid b) ABCD c) Z or Y d) Scattering

7. 6.What is/are the impedance and the admittance matrices in reciprocal network? a) 0 b) Y ij =Y ji c) Zii=Z jj d) [I ]

8. 7.What is the scattering matrix equation ? a)b 1 = S21a1+S12a2 b)b2=S11a2+S21a1 c)b1=S11a1+S12a2 d)b2=S12a 2 +S11a1

9. 8. What is called the return loss? a)10 log(Pi/Pr) b)10log(Pr/Pi) c)10log(Pr-Pi)/Pi d) 20log(Po/Pi)

10. 9. What is the condition for perfectly matched load ? a) 1 b) 0 c) 2 d)-1

11. 10.What is property of [S] matrix for lossless network? a) Symmetrical b) unitary c) Phase shift property d) linear property

12. 11. What is the incident power at nth port? a)1/2|a n | 2 b)1/2|bn| 2 c)1/2|cn| 2 d)1/2|dn| 2

13. 12. What is the total output voltage in two port network? a)V=V ⁺ +V ⁻ b)V=V ⁺ -V ⁻ c)V=V ⁺ *V ⁻ d) V=V ⁻ /V ⁺

14. 13.What is the total output current in two port network? a)I=I ⁺ +I ⁻ b)I=I ⁺ -I ⁻ c)I=I ⁺ *V ⁻ d) I=I ⁻ /I ⁺

15. 14.What is called Insertion loss ? a)10 log(Pi/Pr) b)10log(Pi/Po) c)10log(Pr-Pi)/Pi d) 20log(Po/Pi)

16. 15. What is called Transmission loss ? a)10 log(Pi/Pr) b)10log(Pi/Po) c)10log[(Pi-Pr)/Po ] d) 20log(Po/Pi)

17. 16. What is the Scattering matrix representation for two port network? a) b) c) d)

18. 17. What is the Z parameter matrix representation? a) b) c) d)

19. 18. What is the h- parameter matrix representation? a) b) c) d)

20. 19. What is the reflection coefficient Г 1 at the port 1 when port 2 is terminated with matched load? a ) S11=(b1/a1) a2=0 b) S21=(b2/a1) a2=0 c) S22= (b2/a2) a1=0 d) S12=(b1/a2) a1=0

21. 20.What is the relation between [S] and [z] matrices? a)[S]=([Z]+Z0[u]) -1 ([Z]-Z0[u]) b) [S]=(Y0[u]+[Y]) -1 ([Y0[u]-[Y]) c)c=1/Z21 d)D=Z22/Z21

22. 21. What is the relation between [S] and [y] matrices? a)[S]=([Z]+Z0[u]) -1 ([Z]-Z0[u]) b) [S]=(Y0[u]+[Y]) -1 ([Y0[u]-[Y]) c)c=1/Z21 d)D=Z22/Z21

23. 22. Which property helps the [s] matrix a quick check of power balance of lossless structures..? a)Symmetrical b) Unitary c) reciprocity d)Linear

24. 23. What is the normalized voltage for n port network in microwave? a) a=I - / & b=I ⁺ / b) a=V ⁺ / & b=V ⁺ / c) a=V ⁺ / & b=V - / d) a=V ⁺ / & b=I - /

25. 24. What is the S matrix for Ideal phase shifter? a) b) c) d)

26. 25.What is VHF frequency range? a)10-100mhz b)25-40mhz c)26.5-40ghz d)88-108mhz

27. 26.What is Quality factor,Q? a)XL/Rs b)Xs/Rs c)RL/Rs d)Xl/RL

28. 27.What is the Resistance of the wire R? a)pl/A b)Pb/A c)ps/d d)pr/r

29. 28.What networks are used to stabilize the amplifier? a)terminated b)computer c)nodal d)matched

30. 29.What is Operating power gain? a)PL/Pr b)PL/Pin c)Pout/Pin d)Ps/PL

31. 30. Which feedback does provide the condition IЃI>1? a)negative b)positive c)series d)shunt

32. 31. Which state does give the condition IS22I<1? a)stable b)unstable c)temporary d)oscillations

33. 32. What is called noise figure? a)output voltage/input voltage b)input SNR/output SNR c)load/source d)Smax/Smin

34. 33.What is Loaded quality factor Ql? a)f0/BW b)BW/f0 c)Fs/BW d)BW/fs

35. 34.What is the relationship between nodal and loaded quality factor ? a)Ql=Qn/4 b)Ql=Qn/2 c)Ql=Qn*2 d)Qn=Ql/2

36. 35. Which state does give the condition IЃI>1? a)Stable b)unstable c)Un condition d)constant

37. 36.What is the condition for unilateral power gain? a)S22=0 b)S11=0 c)S12=0 d)S21=0

38. 37. What is Power matched factor m? a)Rs/RL b)Rl/Rs c)Xc/Xl d)Xl/Xc

39. 38.What is the other name of two element network? a)M-type b)π-type c)L-type d)n-type

40. 39. Which is the major technical consideration to choose matching network? a)Stability b)Dc biasing c)frequency response d)all the above

41. 40.What is the Frequency of Ka band? a)20-40mhz b)3-30mhz c)1-2Ghz d)27-40Ghz

42. 41. Which is three port components? a) adapter b) waveguide tees c)phase shifter d) directional coupler

43. 42.What is the another name of E- plane tee? a) Series tee b) shunt tee c) Multi port tee d) sum tee

44. 43. What is another name of H plane tee? a) Series tee b) shunt tee c) Multi port tee d) difference arm tee

45. 44. What is the another name of Magic-T? a) Series tee b) shunt tee c) Hybrid tee d) sum tee

46. 45.What is the use of Corners and bends? a) equate the direction of the wave b) alter the direction of the guide to any angle c) find the phase shift d) find the propagation range

47. 46.How the discontinuity effects can be reduced in the wave guide bend? a)keeping minimum radius of curvature R=2b for E bend, R=2a for H bend b) keeping minimum radius of curvature R=1b for E bend, R=1a for H bend c) keeping minimum radius of curvature R=2.5b for E bend, R=2.5a for H bend d) keeping minimum radius of curvature R=1.5b for E bend, R=1.5a for H bend

48. 47. What is the use of the wave guide twist? a) equate the direction of the wave b) alter the direction of the guide to any angle c) find the phase shift d)to change the polarization of the propagating waves

49. 48. What is the length of the twist? a)an even multiple of quarter guide wave length b) an odd multiple of quarter guide wave length c) an odd multiple of half guide wave length d) an even multiple of half guide wave length

50. 49. Which type of device is called directional coupler? a)active three port device b) passive three port device c) passive four port device d) wave guide tee

51. 50. What is the coupling parameter of the directional coupler? a)10 log(P1/P4) b) 10 log(P1/P2) c) 10 log(P4/P3) d) 10 log(P1/Pr)