136. Most of the power measuring microwave devices measure:
     

1. 1. Average power
      

   
   
   

   2. Peak power
      

   
   
   

   3. Instantaneous power
      

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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137. In comparison to an unloaded cavity, value of θ factor of a loaded cavity is:
     

1. 1. Higher
      

   
   
   

   2. Lower
      

   
   
   

   3. Same
      

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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138. Which of the following is directly measured in sweep reflectometry?
     

1. 1. SWR
      

   
   
   

   2. Impedance
      

   
   
   

   3. Reflection Coefficient
      

   
   
   

   4. Return loss

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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139. A PIN diode is suitable for use as a:
     

1. 1. Microwave switch
      

   
   
   

   2. Microwave mixed diode
      

   
   
   

   3. Microwave detector
      

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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140. A magic-tee is nothing but:
     

1. 1. A modification of E-plane tee
      

   
   
   

   2. A modification of H-plane tee
      

   
   
   

   3. A combination of E-plane and H-plane tee
      

   
   
   

   4. Two E-plane tees connected in parallel

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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