Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Which devices did we use for AM Demodulation?

A. Envelope detector and Square law demodulator
B. PLL detector and Foster-Seeley discriminator
C. Ratio detector and Slope detector
D. Only quadrature detector
Answer» B. PLL detector and Foster-Seeley discriminator
2.

Why the Synchronous detection of AM signals is considered as a disadvantage?

A. Needs additional system for synchronization of carrier
B. Receiver is available at cheap prices
C. Needs less number of system as estimated for generation of carrier
D. Receiver is not complex
Answer» B. Receiver is available at cheap prices
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