set 1 · 2017-11-09 · 14.in ground wave propagation, earth behaves as_____ [ ] a.leaky inductor...

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SET 1

SET 1

G.PULLAIAH COLLEGE OF ENGINEERING & TECHNOLOGY

III B.Tech. I Sem., II MID Objective Exam

Branch: ECE

SUB: AWP Date: 07-11-2017

TIME: 20Min Max Marks: 10M

Hall Ticket No: Signature of Invigilator:



Branch: ECE

SUB:AWP Date:07-11-2017



SREE

Typewritten text

1.In sky wave propagation, below LUF wave ______[] a.penetratesb.attenuatesc.returnsd.None 2.If dM/dh<0_________[] a.standard atmosphereb.temperature inversionc.constant temperatured.none 3.In freepsace____mode exists[] a.TEMb.TEc.TMd.All 4.Example of non-uniform linear array________[] a.BSAb.EFAc.IDEAd.Binomial Array 5.Doubling the measurement distance _______ phase error[] a.Doublesb.Halvesc.Tripplesd.none 6.Example of conformal antenna[] a.Helicalb.Parabolic c.Lensd.Patch 7.Number of images of a corner reflector with corner angle 60deg____[] a.3b.2c.4d.5 8.Which is frequency sensitive__________[] a.Unzoned Lensb.Zoned Lensc.Fast Lensd.Slow Lens 9.High collimated rays are obtained from________[] a.Helicalb.Parabolic c.Lensd.Patch 10.Amplitudes of excitation in binomial array with 5 elements is____[] a.1 2 2 2 1 b.1 4 6 4 1 c.1 4 5 4 1 d.1 6 4 6 1

SREE

Typewritten text

1.In sky wave propagation, below LUF wave ______[] a.penetratesb.attenuatesc.returnsd.None 2.If dM/dh<0_________[] a.standard atmosphereb.temperature inversionc.constant temperatured.none 3.In freepsace____mode exists[] a.TEMb.TEc.TMd.All 4.Example of non-uniform linear array________[] a.BSAb.EFAc.IDEAd.Binomial Array 5.Doubling the measurement distance _______ phase error[] a.Doublesb.Halvesc.Tripplesd.none 6.Example of conformal antenna[] a.Helicalb.Parabolic c.Lensd.Patch 7.Number of images of a corner reflector with corner angle 60deg____[] a.3b.2c.4d.5 8.Which is frequency sensitive__________[] a.Unzoned Lensb.Zoned Lensc.Fast Lensd.Slow Lens 9.High collimated rays are obtained from________[] a.Helicalb.Parabolic c.Lensd.Patch 10.Amplitudes of excitation in binomial array with 5 elements is____[] a.1 2 2 2 1 b.1 4 6 4 1 c.1 4 5 4 1 d.1 6 4 6 1

SREE

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11.Directivity is________ to number of elements[] a.directly proportionalb. inversely proportionalc.not relatedd.none 12.To increase bandwidth of patch antenna height of substrate should be_________[] a.decreasedb.increasedc.unchangedd.none 13.In BSA, max. radiation is at___[] a.60degb.0degc.40degd.90deg 14.In ground wave propagation, earth behaves as_____ [] a.leaky inductorb.leaky resistorc.leaky capacitord.none 15.Array excited with equal amplitude and opposite phase yields max radiation at__[] a.60degb.0degc.40degd.90deg 16.Layer absent at night in ionosphere is___[] a.F layerb.D-layerc.E-layerd.All 17.AM broadcasting uses_____[] a.sky wave propagationb.ground wave propagationc. space wave d.none 18.Hansen-Woodyard condition____[] a.±(βd+πn)b.±(βd+(π/n))c.±(βd+2πn)d.none 19.Relation between fc and Nmax is____[] a.fc=9Nmaxb.fc=81√Nmaxc.fc=9√Nmaxd.none 20.Relation between MUF and CF is ____[] a.fmuf=cosѳ fcb. fmuf=secѳ fcc. fc=cosѳ fmufd.none

SREE

Typewritten text

11.Directivity is________ to number of elements[] a.directly proportionalb. inversely proportionalc.not relatedd.none 12.To increase bandwidth of patch antenna height of substrate should be_________[] a.decreasedb.increasedc.unchangedd.none 13.In BSA, max. radiation is at___[] a.60degb.0degc.40degd.90deg 14.In ground wave propagation, earth behaves as_____ [] a.leaky inductorb.leaky resistorc.leaky capacitord.none 15.Array excited with equal amplitude and opposite phase yields max radiation at__[] a.60degb.0degc.40degd.90deg 16.Layer absent at night in ionosphere is___[] a.F layerb.D-layerc.E-layerd.All 17.AM broadcasting uses_____[] a.sky wave propagationb.ground wave propagationc. space wave d.none 18.Hansen-Woodyard condition____[] a.±(βd+πn)b.±(βd+(π/n))c.±(βd+2πn)d.none 19.Relation between fc and Nmax is____[] a.fc=9Nmaxb.fc=81√Nmaxc.fc=9√Nmaxd.none 20.Relation between MUF and CF is ____[] a.fmuf=cosѳ fcb. fmuf=secѳ fcc. fc=cosѳ fmufd.none



SET 2

SET 2



Branch: ECE

SUB: AWP Date:07-11-2017





Branch: ECE




SREE

Typewritten text

1.Example of non-uniform linear array________[] a.BSAb.EFAc.IDEAd.Binomial Array 2.Doubling the measurement distance _______ phase error[] a.Doublesb.Halvesc.Tripplesd.none 3.Example of conformal antenna[] a.Helicalb.Parabolic c.Lensd.Patch 4.Number of images of a corner reflector with corner angle 60deg____[] a.3b.2c.4d.5 5.Which is frequency sensitive__________[] a.Unzoned Lensb.Zoned Lensc.Fast Lensd.Slow Lens 6.High collimated rays are obtained from________[] a.Helicalb.Parabolic c.Lensd.Patch 7.Amplitudes of excitation in binomial array with 5 elements is____[] a.1 2 2 2 1 b.1 4 6 4 1 c.1 4 5 4 1 d.1 6 4 6 1 8.In sky wave propagation, below LUF wave ______ [ ] a.penetrates b.attenuates c.returns d.None 9.If dM/dh<0_________ [ ] a.standard atmosphere b.temperature inversion c.constant temperature d.none 10.In freepsace____mode exists [ ] a.TEM b.TE c.TM d.All

SREE

Typewritten text


SREE

Typewritten text

11.Array excited with equal amplitude and opposite phase yields max radiation at__[] a.60degb.0degc.40degd.90deg 12.Layer absent at night in ionosphere is___[] a.F layerb.D-layerc.E-layerd.All 13.Directivity is________ to number of elements[] a.directly proportionalb. inversely proportionalc.not relatedd.none 14.To increase bandwidth of patch antenna height of substrate should be_________[] a.decreasedb.increasedc.unchangedd.none 15.In BSA, max. radiation is at___[] a.60degb.0degc.40degd.90deg 16.In ground wave propagation, earth behaves as_____ [] a.leaky inductorb.leaky resistorc.leaky capacitord.none 17.AM broadcasting uses_____[] a.sky wave propagationb.ground wave propagationc. space wave d.none 18.Hansen-Woodyard condition____[] a.±(βd+πn)b.±(βd+(π/n))c.±(βd+2πn)d.none 19.Relation between fc and Nmax is____[] a.fc=9Nmaxb.fc=81√Nmaxc.fc=9√Nmaxd.none 20.Relation between MUF and CF is ____[] a.fmuf=cosѳ fcb. fmuf=secѳ fcc. fc=cosѳ fmufd.none

SREE

Typewritten text

11.Array excited with equal amplitude and opposite phase yields max radiation at__[] a.60degb.0degc.40degd.90deg 12.Layer absent at night in ionosphere is___[] a.F layerb.D-layerc.E-layerd.All 13.Directivity is________ to number of elements[] a.directly proportionalb. inversely proportionalc.not relatedd.none 14.To increase bandwidth of patch antenna height of substrate should be_________[] a.decreasedb.increasedc.unchangedd.none 15.In BSA, max. radiation is at___[] a.60degb.0degc.40degd.90deg 16.In ground wave propagation, earth behaves as_____ [] a.leaky inductorb.leaky resistorc.leaky capacitord.none 17.AM broadcasting uses_____[] a.sky wave propagationb.ground wave propagationc. space wave d.none 18.Hansen-Woodyard condition____[] a.±(βd+πn)b.±(βd+(π/n))c.±(βd+2πn)d.none 19.Relation between fc and Nmax is____[] a.fc=9Nmaxb.fc=81√Nmaxc.fc=9√Nmaxd.none 20.Relation between MUF and CF is ____[] a.fmuf=cosѳ fcb. fmuf=secѳ fcc. fc=cosѳ fmufd.none





Branch: ECE






Branch: ECE




SET 3

SET 3

SREE

Typewritten text

1.Example of conformal antenna[] a.Helicalb.Parabolic c.Lensd.Patch 2.Number of images of a corner reflector with corner angle 60deg____[] a.3b.2c.4d.5 3.Example of non-uniform linear array________ [ ] a.BSA b.EFA c.IDEA d.Binomial Array 4.Doubling the measurement distance _______ phase error [] a.Doubles b.Halves c.Tripples d.none 5.Which is frequency sensitive__________[] a.Unzoned Lensb.Zoned Lensc.Fast Lensd.Slow Lens 6.High collimated rays are obtained from________[] a.Helicalb.Parabolic c.Lensd.Patch 7.Amplitudes of excitation in binomial array with 5 elements is____[] a.1 2 2 2 1 b.1 4 6 4 1 c.1 4 5 4 1 d.1 6 4 6 1 8.In sky wave propagation, below LUF wave ______ [ ] a.penetrates b.attenuates c.returns d.None 9.If dM/dh<0_________ [ ] a.standard atmosphere b.temperature inversion c.constant temperature d.none 10.In freepsace____mode exists [ ] a.TEM b.TE c.TM d.All

SREE

Typewritten text


SREE

Typewritten text

11.Layer absent at night in ionosphere is___ [ ] a.F layer b.D-layer c.E-layer d.All 12.Directivity is________ to number of elements [ ] a.directly proportional b. inversely proportional c.not related d.none 13.Array excited with equal amplitude and opposite phase yields max radiation at__ [ ] a.60deg b.0deg c.40deg d.90deg 14.To increase bandwidth of patch antenna height of substrate should be_________ [ ] a.decreased b.increased c.unchanged d.none 15.In BSA, max. radiation is at___ [ ] a.60deg b.0deg c.40deg d.90deg 16.In ground wave propagation, earth behaves as_____ [ ] a.leaky inductor b.leaky resistor c.leaky capacitor d.none 17.AM broadcasting uses_____ [ ] a.sky wave propagation b.ground wave propagation c. space wave d.none 18.Hansen-Woodyard condition____ [ ] a.±(βd+πn) b.±(βd+(π/n)) c.±(βd+2πn) d.none 19.Relation between fc and Nmax is____ [ ] a.fc=9Nmax b.fc=81√Nmax c.fc=9√Nmax d.none 20.Relation between MUF and CF is ____ [ ] a.fmuf=cosѳ fc b. fmuf=secѳ fc c. fc=cosѳ fmuf d.none

SREE

Typewritten text

11.Layer absent at night in ionosphere is___ [ ] a.F layer b.D-layer c.E-layer d.All 12.Directivity is________ to number of elements [ ] a.directly proportional b. inversely proportional c.not related d.none 13.Array excited with equal amplitude and opposite phase yields max radiation at__ [ ] a.60deg b.0deg c.40deg d.90deg 14.To increase bandwidth of patch antenna height of substrate should be_________ [ ] a.decreased b.increased c.unchanged d.none 15.In BSA, max. radiation is at___ [ ] a.60deg b.0deg c.40deg d.90deg 16.In ground wave propagation, earth behaves as_____ [ ] a.leaky inductor b.leaky resistor c.leaky capacitor d.none 17.AM broadcasting uses_____ [ ] a.sky wave propagation b.ground wave propagation c. space wave d.none 18.Hansen-Woodyard condition____ [ ] a.±(βd+πn) b.±(βd+(π/n)) c.±(βd+2πn) d.none 19.Relation between fc and Nmax is____ [ ] a.fc=9Nmax b.fc=81√Nmax c.fc=9√Nmax d.none 20.Relation between MUF and CF is ____ [ ] a.fmuf=cosѳ fc b. fmuf=secѳ fc c. fc=cosѳ fmuf d.none





Branch: ECE






Branch: ECE




SET 4

SET 4

SREE

Typewritten text

1.Which is frequency sensitive__________ [ ] a.Unzoned Lens b.Zoned Lens c.Fast Lens d.Slow Lens 2.Example of conformal antenna [ ] a.Helical b.Parabolic c.Lens d.Patch 3.Number of images of a corner reflector with corner angle 60deg____ [ ] a.3 b.2 c.4 d.5 4.Example of non-uniform linear array________ [ ] a.BSA b.EFA c.IDEA d.Binomial Array 5.Doubling the measurement distance _______ phase error [ ] a.Doubles b.Halves c.Tripples d.none 6.High collimated rays are obtained from________ [ ] a.Helical b.Parabolic c.Lens d.Patch 7.Amplitudes of excitation in binomial array with 5 elements is____ [ ] a.1 2 2 2 1 b.1 4 6 4 1 c.1 4 5 4 1 d.1 6 4 6 1 8.In sky wave propagation, below LUF wave ______ [ ] a.penetrates b.attenuates c.returns d.None 9.If dM/dh<0_________ [ ] a.standard atmosphere b.temperature inversion c.constant temperature d.none 10.In freepsace____mode exists [ ] a.TEM b.TE c.TM d.All

SREE

Typewritten text

1.Which is frequency sensitive__________ [ ] a.Unzoned Lens b.Zoned Lens c.Fast Lens d.Slow Lens 2.Example of conformal antenna [ ] a.Helical b.Parabolic c.Lens d.Patch 3.Number of images of a corner reflector with corner angle 60deg____ [ ] a.3 b.2 c.4 d.5 4.Example of non-uniform linear array________ [ ] a.BSA b.EFA c.IDEA d.Binomial Array 5.Doubling the measurement distance _______ phase error [ ] a.Doubles b.Halves c.Tripples d.none 6.High collimated rays are obtained from________ [ ] a.Helical b.Parabolic c.Lens d.Patch 7.Amplitudes of excitation in binomial array with 5 elements is____ [ ] a.1 2 2 2 1 b.1 4 6 4 1 c.1 4 5 4 1 d.1 6 4 6 1 8.In sky wave propagation, below LUF wave ______ [ ] a.penetrates b.attenuates c.returns d.None 9.If dM/dh<0_________ [ ] a.standard atmosphere b.temperature inversion c.constant temperature d.none 10.In freepsace____mode exists [ ] a.TEM b.TE c.TM d.All

SREE

Typewritten text

11.In BSA, max. radiation is at___ [ ] a.60deg b.0deg c.40deg d.90deg 12.In ground wave propagation, earth behaves as_____ [ ] a.leaky inductor b.leaky resistor c.leaky capacitor d.none 13.AM broadcasting uses_____ [ ] a.sky wave propagation b.ground wave propagation c. space wave d.none 14.Hansen-Woodyard condition____ [ ] a.±(βd+πn) b.±(βd+(π/n)) c.±(βd+2πn) d.none 15.Relation between fc and Nmax is____ [ ] a.fc=9Nmax b.fc=81√Nmax c.fc=9√Nmax d.none 16.Relation between MUF and CF is ____ [ ] a.fmuf=cosѳ fc b. fmuf=secѳ fc c. fc=cosѳ fmuf d.none 17.Layer absent at night in ionosphere is___ [ ] a.F layer b.D-layer c.E-layer d.All 18.Directivity is________ to number of elements [ ] a.directly proportional b. inversely proportional c.not related d.none 19.Array excited with equal amplitude and opposite phase yields max radiation at__ [ ] a.60deg b.0deg c.40deg d.90deg 20.To increase bandwidth of patch antenna height of substrate should be_________ [ ] a.decreased b.increased c.unchanged d.none

SREE

Typewritten text

11.In BSA, max. radiation is at___ [ ] a.60deg b.0deg c.40deg d.90deg 12.In ground wave propagation, earth behaves as_____ [ ] a.leaky inductor b.leaky resistor c.leaky capacitor d.none 13.AM broadcasting uses_____ [ ] a.sky wave propagation b.ground wave propagation c. space wave d.none 14.Hansen-Woodyard condition____ [ ] a.±(βd+πn) b.±(βd+(π/n)) c.±(βd+2πn) d.none 15.Relation between fc and Nmax is____ [ ] a.fc=9Nmax b.fc=81√Nmax c.fc=9√Nmax d.none 16.Relation between MUF and CF is ____ [ ] a.fmuf=cosѳ fc b. fmuf=secѳ fc c. fc=cosѳ fmuf d.none 17.Layer absent at night in ionosphere is___ [ ] a.F layer b.D-layer c.E-layer d.All 18.Directivity is________ to number of elements [ ] a.directly proportional b. inversely proportional c.not related d.none 19.Array excited with equal amplitude and opposite phase yields max radiation at__ [ ] a.60deg b.0deg c.40deg d.90deg 20.To increase bandwidth of patch antenna height of substrate should be_________ [ ] a.decreased b.increased c.unchanged d.none

set 1 · 2017-11-09 · 14.in ground wave propagation, earth behaves as_____ [ ] a.leaky inductor...

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