Q.1
The one below among others is not a type TEM line used in microwave networks:
  • a) Co-axial wire
  • b) Micro strip line
  • c) Strip lines
  • d) Surface guide
Q.2
The one below is the only micro wave network element that is a TEM line:
  • a) Co-axial cable
  • b) Rectangular wave guide
  • c) Circular wave guide
  • d) Surface wave guide
Q.3
The relation between voltage, current and impedance matrices of a microwave network is:
  • a) [V] = [Z][I]
  • b) [Z] = [V][I]
  • c) [I] = [Z][V]
  • d) [V] = [Z]-[I]
Q.4
The relation between voltage, current and admittance matrices of a microwave network is:
  • a) [I] = [Y] [V]
  • b) [Y] = [V] [I]
  • c) [I] = [Z] [V]
  • d) [V] = [Z]-1[I]
Q.5
Admittance and impedance matrices of a micro waves network are related as:
  • a) [Y] = [Z]-1
  • b) [Y] = [Z]
  • c) [V] = [Z] [Z]-1
  • d) [Z] = [V] [V]-1
Q.6
The element of a Z matrix, Zij can be given in terms of voltage and current of a microwave network as:
  • a) ZIJ = VI/IJ
  • b) ZIJ = VIIJ
  • c) 1//ZIJ = 1/JIVI
  • d) VIJ = IJ/JI
Q.7
In a two port network, if current at port 2 isand voltage at port 1 is 4V, then the impedance Z₁₂ is:
  • a) 2 Ω
  • b) 8 Ω
  • c) 0.5 Ω
  • d) Insufficient data
Q.8
In a 2 port network, if current at port 2 isand voltage at port 1 is 4 V, then the admittance Y₂₁ is:
  • a) 0.5 Ʊ
  • b) 8 Ʊ
  • c) 2 Ʊ
  • d) 4 Ʊ
Q.9
For a reciprocal network, Z matrix is:
  • a) A unit matrix
  • b) Null matrix
  • c) Skew symmetric matrix
  • d) Symmetric matrix
Q.10
For a lossless network, the impedance and admittance matrices are:
  • a) Real
  • b) Purely imaginary
  • c) Complex
  • d) Rational
Q.11
The matrix with impedance parameters Z₁₁=1+j, Z₁₂=4+j, Z₂₂=Z21=4+j is said to be
  • a) Reciprocal network
  • b) Lossless network
  • c) Lossy network
  • d) None of the mentioned
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