Download Aptitude Crack
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Communication Systems - Engineering

Q1:

Assertion (A): A balun is an RF impedance matching transformer. Reason (R): Sometimes a booster amplifier is used with a TV set.

A Both A and R are correct and R is correct explanation of A

B Both A and R are correct but R is not correct explanation of A

C A is correct but R is wrong

D A is wrong but R is correct

ANS:B - Both A and R are correct but R is not correct explanation of A

Balun gives a 4 : 1 impedance transformation. In areas where TV reception is poor, booster is used to strengthen a TV signal.