A) high quantization error B) slow operation C) low accuracy D) large number of comparators required
A) generate clock pulses B) remove high-frequency noise C) hold the input signal constant during conversion D) amplify the signal
A) quantization B) Sampling C) encoding D) filtering
A) sampling frequency error B) difference between actual and quantized value C) sum of all sampled values D) ratio of signal to noise
A) dividing the signal into equal voltage levels B) taking discrete time samples of a continuous signal C) filtering unwanted frequencies D) converting binary to decimal
A) quantization error B) resolution speed C) output current D) sampling frequency
A) both input and output impedances are infinite B) infinite input impedance and zero output impedance C) both input and output impedances are zero D) zero input impedance and infinite output impedance
A) output terminal B) inverting input C) ground terminal D) non-inverting input
A) integrator B) comparator C) differential amplifier D) summing amplifier
A) reduce bandwidth B) reduce distortion and stabilize gain C) increase gain D) increase input impedance
A) equal to the signal frequency B) four times the signal frequency C) twice the highest signal frequency D) half the signal frequency
A) Kirchhoff's theorem B) Fourier theorem C) Nyquist theorem D) Ohm's law
A) converting each sample into discrete amplitude levels B) sampling the signal in time C) encoding binary data D) filtering the analog signal
A) integrating input voltage over time B) sampling only at zero crossings C) counting clock pulses during conversion D) comparing input voltage with reference voltages step-by-step
A) voltage follower B) inverting amplifier C) differential amplifier D) non-inverting amplifier
A) modulation B) digital-to-analog Conversion C) demodulation D) analog-to-digital Conversion
A) amplify the signal B) remove high-frequency noise C) generate clock pulses D) hold the input signal constant during conversion
A) Digital B) Analog
A) Increases B) Remains the same C) Doubles D) Decreases
A) Frequency B) Throughput C) Propagation speed D) Period
A) 1 second B) 0.001 seconds C) 0.01 second D) 0.1 seconds
A) Frequency B) Phase C) Digital signal D) Sine wave
A) Composet Signal B) resistor C) Diode D) Transistors
A) 3.96 MHz B) 36 MHz C) 396 kHz D) 360 kHz
A) 1948 B) 1947 C) 1950 D) 1947
A) 1906 B) 1908 C) 1907 D) 1910
A) Peak amplitude B) Frequency C) Phase D) Wavelength
A) 1975 B) 1978 C) 1972 D) 1971
A) Analog B) Digital
A) Baud rate B) Bps C) Digital signal D) Bit rate
A) Periodic and discrete B) Aperiodic and continuous C) Periodic and continuous D) Aperiodic and discrete
A) ASK B) PSK C) Analog modulation D) Digital modulation
A) Aperiodic and continuous B) Capture effect C) Fourier analysis
A) ELECTRIC POWER B) AUTOMOTIVE ELECTRONICS C) DIGITAL ELECTRONICS D) COMMUNICATION ELECTRONICS
A) Reflection B) Distortion C) Noise D) No Answer
A) VACUUM TUBE TETRODE B) VACUUM TUBE DIODE C) VACUUM TUBES D) VACUUM TUBE TRIODE
A) Digital Modulation B) Analog modulation C) PSK D) ASK
A) Throughput B) Propagation speed C) Propagation time
A) Propagation time B) No answer C) Wavelength D) Phase
A) Phase B) Time C) Bandwidth D) Power
A) 5000 bits/second B) 5 bits/second C) 500 bits/second D) 50 bits/second
A) VACUUM TUBE B) VACUUM TUBE TETRODE C) VACUUM TUBE DIODE D) VACUUM TUBE TRIODE
A) VACUUM TUBE B) VACUUM TUBE PENTODE C) VACUUM TUBE TRIODE D) VACUUM TUBE TETRODE
A) Transducer B) Channel C) Amplifier D) Repeater
A) ELECTRIC POWER B) DIGITAL ELECTRONICS C) COMMUNICATIONS ELECTRONICS D) INDUSTRIAL ELECTRONICS
A) Operational Amplifier B) Differential Amplifier
A) VACUUM TUBE B) VACUUM TUBE DIODE C) VACUUM TUBE TETRODE
A) Throughput B) Propagation speed C) wavelength
A) VACUUM TUBE TRIODE B) VACUUM TUBES C) VACUUM TUBE TETRODE D) VACUUM TUBE DIODE
A) Encoder B) Repeater C) Input transducer D) Output transducer
A) Wavelength B) No answer C) Phase D) Propagation time
A) Physics B) Electronics C) Mechatronics D) Electronics
A) Peak amplitude B) Frequency C) Wavelength D) Time
A) Amplifier B) Transponder C) Transducer D) ICs
A) 50 Terabits/second B) 5 Petabits/second C) 10 Terabits/second D) 5 Terabits/second
A) User B) Sender C) Channel D) Amplifier
A) INDUSTRIAL ELECTRONICS B) ELECTRIC POWER C) AUTOMOTIVE ELECTRONICS D) DIGITAL ELECTRONICS
A) Attenuation B) Distortion C) Crosstalk D) Decibel
A) Propagation time B) Throughput C) No answer D) Propagation speed
A) Analog modulation B) Amplifier C) Transponder D) Digital modulation
A) Channel B) Sender C) User D) Amplifier
A) very high speed B) simplicity C) low power consumption D) low cost
A) sinusoidal waveform B) current form C) binary form D) analog voltage
A) One B) Zero C) Very high D) Very small
A) differential amplifier B) integrator C) summing amplifier D) comparator
A) Light sensor B) Sound sensor C) Motion sensor D) Magnetic sensor
A) A device that controls current flow B) a device that converts one form of energy into another C) a device that amplifies signals D) A device that stores data
A) control power supply B) store program code C) measure time intervals or generate delays D) increase memory size
A) the positive supply voltage B) the positive output voltage C) the feedback terminal D) the non-inverting input terminal
A) Reduce bandwidth B) increase input impedance C) reduce distortion and stabilize gain D) increase gain
A) four times the signal frequency B) twice the highest signal frequency C) Equal to the signal frequency D) half the signal frequency
A) integrating input voltage over time B) counting clock pulses during conversion C) Osampling only at zero crossings D) comparing input voltage with reference voltages step-by-step
A) Non inverting input B) Grounded terminal C) Inverting input
A) 1947 B) 1901 C) 1906 D) 1904
A) AUTOMOTIVE ELECTRONICS B) MEDICAL ELECTRONICS C) INDUSTRIAL ELECTRONICS D) DIGITAL ELECTRONIC
A) 1958 B) 1960 C) 1961 D) 1959
A) Attenuation B) Capture effect C) Crosstalk D) Distortion
A) VACUUM TUBE DIODE B) VACUUM TUBE TETRODE C) VACUUM TUBE TRIODE D) VACUUM TUBE DIODE
A) VACUUM TUBE PENTODE B) VACUUM TUBE DIODE C) VACUUM TUBE TRIODE D) VACUUM TUBE TETRODE
A) power from the DC power supply B) input signal power C) power dissipated in the last stage
A) heat sink B) inductor C) transformer D) capacitor
A) the same as class A B) Very high C) Very low D) The same as class B
A) Rectifier B) Oscillator C) power amplifier D) Band-pass filter
A) Gain B) Efficiency C) SNR D) power gain
A) 270⁰ B) 90° C) 360⁰ D) 180°
A) Class C B) Class AB C) Class B D) Class A
A) slightly less than class B B) about the same as a class A C) the same as class B D) higher than class B
A) crossover distortion B) high heat generation C) low power output D) high cost
A) 40% B) 20% C) 95% D) 79%
A) Oscillator B) Band-pass filter C) power amplifier D) Rectifier
A) one-half of the input cycle B) all of the input cycle C) a very small percentage of the input cycle D) more than 180 degrees of input cycle
A) power gain B) Gain C) efficiency D) SNR
A) Mixer circuit B) Operational amplifier C) Power amplifier D) Voltage amplifier
A) Class A B) Class B C) Class D D) Class C
A) Increase signal power to drive a load B) Signal filtering C) Signal generation D) Reduce power consumption
A) Class C B) Class B C) class AB D) Class A
A) Less than class AB B) Less than class A C) Less than class B D) greater than classes A, AB, B
A) portable battery-operated devices B) precision measurement instruments C) low noise preamplifiers D) precision measurement instruments
A) voltage-divider B) current mirror C) differential D) Push-pull
A) High efficiency and low distortion B) Low efficiency and low distortion C) Low efficiency and high distortion D) High efficiency and high distortion |