round 2

Select the word that fits the analogy:

Explicit: Implicit: Express: ___________

• (A) Compress

• (B) Suppress

• (C) Impress

• (D) Repress

Which of the following is NOT a type of microwave antenna?

• A) Parabolic antenna

• B) Horn antenna

• C) Helical antenna

• D) Dipole antenna

What is the function of a phase-locked loop (PLL) circuit?

• A. To amplify signals

• B. To demodulate signals

• C. To generate stable frequencies

• D. To filter out noise

What is the wavelength of Super high frequency (SHF) especially used in Radar & satellite communication?

• A) 1 m – 10 m

• B) 1 cm – 10 cm

• C) 10 cm – 1 m

• D) 0.1 cm – 1 cm

What is the main advantage of using fiber optic cables for communication?

• A) They are easy to install

• B) They are cheap

• C) They are resistant to interference and noise

• D) They can transmit signals over long distances without amplification

What is the purpose of a demodulator in a communication system?

• A) To convert digital signals to analog signals

• B) To convert analog signals to digital signals

• C) To remove noise from signals

• D) To extract the original message signal from a modulated signal

Solve:

In an 8085 microprocessor, the number of addrss lines required to access a 16K byte memory bank is.......?

• A) 14

• B) 20

• C) 16

• D) 12

In the circuit given below, the equivalent capacitance is ______________

• a) 5.43 μF

• b) 4.23 μF

• c) 3.65 μF

• d) 5.50 μF