1. WINTER Template ANTENNA BASICS Q. No.ANSWERQ. No.ANSWER 111 212 313 414 515 616 717 818 919 1020 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

2. WINTER Template 01 1.Alternating current element is given by[ ] a)I dl b) I dl cosωt c) I dl sinωt d) I ANTENNA BASICS MULTIPLE CHOICE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

3. 02 ANTENNA BASICS 2. Antennas are of -------------- types.[] a)twob)four c)infinited)none MULTIPLE CHOICE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

4. 03 3. The Eθ Component will consists of----------[ ] a)Radiation a)Induction c) Electro static d) All MULTIPLE CHOICE ANTENNA BASICS 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

5. 04 4. Radiation pattern is ----------------Dimensional quantity. [ ] a)twob)three c)single d)none MULTIPLE CHOICE ANTENNA BASICS 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

6. 05 5.The induction and radiation fields of current element are equal at distance of ------ [] a)λ/2 b)λ/4 c)λ/6 d) λ/10 MULTIPLE CHOICE ANTENNA BASICS 10/5/2015 K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

7. WINTER Template 06 6. One steradian is equal to ---------square degrees.[ ] a)360b)180 c)3283d)41,253 ANTENNA BASICS MULTIPLE CHOICE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

8. 07 ANTENNA BASICS 7. The radiation resistance of short dipole is Given by [] a)R r = 80П 2 (dl/λ) 2 b) R r = 20П 2 (dl/λ) 2 c) R r = 10П 2 (dl/λ) 2 d) None MULTIPLE CHOICE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

9. 08 8. The minimum value of the directivity of an antenna is………. [ ] a)Unityb) zero c) Infinited) none MULTIPLE CHOICE ANTENNA BASICS 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

10. 07 ANTENNA BASICS 9. The radiation resistance of short monopole is Given by [] a)R r = 80П 2 (dl/λ) 2 b) R r = 20П 2 (dl/λ) 2 c) R r = 10П 2 (dl/λ) 2 d) None MULTIPLE CHOICE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

11. 10 10. Gain is always -------------than directivity.[] a)greaterb)lesser c)equal tod)none MULTIPLE CHOICE ANTENNA BASICS 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

12. WINTER Template 11 11. Directivity and Resolution are same[] ANTENNA BASICS TRUE OR FALSE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

13. 12 ANTENNA BASICS 12. The radiation resistance of current element is applicable to dipoles up to height of λ/2 only. [] TRUE OR FALSE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

14. 13 13.Reciprocity Theorem can be applied to both circuit and field theories.[] ANTENNA BASICS TRUE OR FALSE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

15. 14 14. The radiation resistance of λ/4 Monopole is 73 Ω [] ANTENNA BASICS TRUE OR FALSE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

16. 15 15. Radiation resistance of antenna is virtual resistance [] ANTENNA BASICS TRUE OR FALSE 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

17. WINTER Template 16 16. The HΦ Component of current element is given by------------ ANTENNA BASICS FILL IN THE BLANKS 10/5/2015 K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

18. 17 ANTENNA BASICS 17.The source of scalar potential is-------------- FILL IN THE BLANKS 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

19. 18 18. The Eθ Component of current element is given by------------ ANTENNA BASICS FILL IN THE BLANKS 10/5/2015 K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

20. 19 19. R/v is called----------------------- ANTENNA BASICS FILL IN THE BLANKS 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

21. 20 20. The Er Component of current element is given by------------ ANTENNA BASICS FILL IN THE BLANKS 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI

22. WINTER Template ANTENNA BASICS ANSWERS Q. No. ANSWE R Q. No.ANSWER 1b11True 2C12False 3d13True 4b14False 5c15True 6c16 7b17Charge Density 8a18 9c19Propagation delay time 10b20 10/5/2015K.Raveendra.,M.Tech.,(Ph.D).,MISTE.,MISOI