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