ADC MCQ Test

What is PAM ?

• Pulse Amplitude Modulation

• Pulse Amplifier Modulation

• Pulse Amplitude Modification

• none of the above

What is PWM ?

• It is a kind of PTM

• It is not a kind of PTM

The process of using a pulse signal to represent information is called

• Frequency modulation

• Pulse modulation

• Amplitude modulation

• Phase modulation

Which of the following is false with respect to pulse modulation?

• Less power consumption

• Low noise

• Degraded signal can be regenerated

• Can transmit analog as well as digital waves

Which of the following is not a form of pulse modulation?

• Pulse amplitude modulation

• Pulse width modulation

• Pulse position modulation

• Pulse frequency modulation

How many voltage levels are present in a PWM signal?

• 0

• 1

• 2

• 3

Power consumption is low in pulse modulation.

• True

• False

Which pulse modulation technique is least expensive?

• Pulse amplitude modulation

• Pulse width modulation

• Pulse position modulation

• Pulse code modulation

Which of the following is false with respect to pulse position modulation?

• Can be transmitted in broadband

• Modulates a high frequency carrier

• Pulse is narrow

• Pulse width changes in accordance with the amplitude of modulating signal

Pulse modulation is not used in which of the following?

• Telemetry systems

• Remote control models

• Switch power modes

• Communication of airplane with ATC