ATT TEST 7 ACTUAL TEST 2025 | ALL
QUESTIONS AND ANSWERS PASS
GUARANTEED 100% ✅
Name the 3 multivibrators whose purpose is to convert DC Energy to square wave energy. -
Answer ✅1. Astable Multivibrator
2. Monostable Multivibrator
3. Bistable Multivibrator
Converts DC operating voltage to square wave - Answer ✅Multivibrator
What type of blocking oscillator is a monostable Multivibrator? - Answer ✅Trigger
How is the output frequency determined in a bistable Multivibrator? - Answer ✅The output
frequency is one half the input trigger frequency.
What is the purpose of a Schmitt trigger? - Answer ✅To convert any input waveform of any
shape and amplitude into square wave pulses of constant amplitude.
In a Schmitt Trigger when is output high; when is output low? - Answer ✅The output is high
anytime the input exceeds the threshold.
The output is low anytime the input signal is below the threshold.
@2025 Exam Material 1
, The action of converting detected intelligence into sound waves that a human can hear. -
Answer ✅Reproduction
The action of separating the low frequency intelligence from the high frequency carrier. -
Answer ✅Detection
The ability of the receiver to isolate one station's frequency from the many frequencies present
at the antenna. - Answer ✅Selection
Occurs when a transmitted electromagnetic wave passes through the receiver's antenna. -
Answer ✅Reception
What are AM receivers? What does the AM broadcast band cover? - Answer ✅AM receivers are
electronic devices that pick up signals sent from AM transmitters.
Frequencies go from 535 KHz to 1605 KHz
What is Amplitude Modulation? - Answer ✅Occurs when the carrier frequency is altered in the
amplitude by the lower intelligence frequency.
How many circuits do the turner block contain? What does each one do? - Answer ✅Tuner
contains 3 circuits.
(RF Amplifier- selects and amplifies one frequency from the many picked up by the antenna.
Local Oscillator- produces a frequency 455 KHz above the selected RF.
Mixer- produces four frequencies)
What is LO, RF, LO+RF, and LO-RF? - Answer ✅LO Frequency- 455 KHz
LO+RF- Adds 455 KHz to the RF.
RF- Given number
@2025 Exam Material 2
QUESTIONS AND ANSWERS PASS
GUARANTEED 100% ✅
Name the 3 multivibrators whose purpose is to convert DC Energy to square wave energy. -
Answer ✅1. Astable Multivibrator
2. Monostable Multivibrator
3. Bistable Multivibrator
Converts DC operating voltage to square wave - Answer ✅Multivibrator
What type of blocking oscillator is a monostable Multivibrator? - Answer ✅Trigger
How is the output frequency determined in a bistable Multivibrator? - Answer ✅The output
frequency is one half the input trigger frequency.
What is the purpose of a Schmitt trigger? - Answer ✅To convert any input waveform of any
shape and amplitude into square wave pulses of constant amplitude.
In a Schmitt Trigger when is output high; when is output low? - Answer ✅The output is high
anytime the input exceeds the threshold.
The output is low anytime the input signal is below the threshold.
@2025 Exam Material 1
, The action of converting detected intelligence into sound waves that a human can hear. -
Answer ✅Reproduction
The action of separating the low frequency intelligence from the high frequency carrier. -
Answer ✅Detection
The ability of the receiver to isolate one station's frequency from the many frequencies present
at the antenna. - Answer ✅Selection
Occurs when a transmitted electromagnetic wave passes through the receiver's antenna. -
Answer ✅Reception
What are AM receivers? What does the AM broadcast band cover? - Answer ✅AM receivers are
electronic devices that pick up signals sent from AM transmitters.
Frequencies go from 535 KHz to 1605 KHz
What is Amplitude Modulation? - Answer ✅Occurs when the carrier frequency is altered in the
amplitude by the lower intelligence frequency.
How many circuits do the turner block contain? What does each one do? - Answer ✅Tuner
contains 3 circuits.
(RF Amplifier- selects and amplifies one frequency from the many picked up by the antenna.
Local Oscillator- produces a frequency 455 KHz above the selected RF.
Mixer- produces four frequencies)
What is LO, RF, LO+RF, and LO-RF? - Answer ✅LO Frequency- 455 KHz
LO+RF- Adds 455 KHz to the RF.
RF- Given number
@2025 Exam Material 2
