Question: In the initial stages of a multistage amplifier, we use______________?

• 1. RC coupling
• 2. Transformer coupling
• 3. Direct coupling
• 4. None of the above

Question: A gain of 1,000,000 times in power is expressed by_____________?

• 1. 30 db
• 2. 60 db
• 3. 120 db
• 4. 600 db

Question: If a three-stage amplifier has individual stage gains of 10 db, 5 db and 12 db, then total gain in db is____________?

• 1. 600 db
• 2. 24 db
• 3. 14 db
• 4. 27 db

Question: Transformer coupling is generally employed when load resistance is______________?

• 1. Large
• 2. Very large
• 3. Small
• 4. None of the above

Question: _____________coupling provides the maximum voltage gain?

• 1. RC
• 2. Transformer
• 3. Direct
• 4. Impedance

Question: In RC coupling, the value of coupling capacitor is about_______________?

• 1. 100 pF
• 2. 0.1 µF
• 3. 0.01 µF
• 4. 10 µF

Question: The best frequency response is of_____________coupling?

• 1. RC
• 2. Transformer
• 3. Direct
• 4. None of the above

Question: In obtaining the frequency response curve of an amplifier, the______________?

• 1. Amplifier level output is kept constant
• 2. Amplifier frequency is held constant
• 3. Generator frequency is held constant
• 4. Generator output level is held constant

Question: In an RC coupling scheme, the coupling capacitor CC must be large enough______________?

• 1. To pass d.c. between the stages
• 2. Not to attenuate the low frequencies
• 3. To dissipate high power
• 4. None of the above

Question: When a multistage amplifier is to amplify d.c. signal, then one must use_____________coupling?

• 1. RC
• 2. Transformer
• 3. Direct
• 4. None of the above