Question: In amplitude modulation, bandwidth is ____________ the audio signal frequency?

• 1. Thrice
• 2. Four times
• 3. Twice
• 4. None of the above

Question: At 100% modulation, the power in each sideband is _____________ of that of carrier?

• 1. 50%
• 2. 40%
• 3. 60%
• 4. 25%

Question: Overmodulation (amplitude) occurs when signal amplitude is _____________ carrier amplitude?

• 1. Equal to
• 2. Greater than
• 3. Less than
• 4. None of the above

Question: Over modulation results in ______________?

• 1. Weakening of the signal
• 2. Excessive carrier power
• 3. Distortion
• 4. None of the above

Question: An increase in gain, in most systems, leads to_____________?

• 1. smaller damping ratio
• 2. larger damping ratio
• 3. constant damping ratio
• 4. none of the above

Question: A conditionally stable system exhibits poor stability at______________?

• 1. low frequencies
• 2. reduced values of open loop gain
• 3. increased values of open loop gain
• 4. none of the above

Question: The type 1 system has _________ at the origin?

• 1. no pole
• 2. net pole
• 3. simple pole
• 4. two poles

Question: Spring constant in force-voltage analogy is analogous to_____________?

• 1. capacitance
• 2. reciprocal of capacitance
• 3. current
• 4. resistance

Question: Static error coefficients are used as a measure of the effectiveness of closed loop systems for specified ___________ input signal?

• 1. acceleration
• 2. velocity
• 3. position
• 4. all of the above

Question: The type 2 system has __________ at the origin?

• 1. no net pole
• 2. net pole
• 3. simple pole
• 4. two poles