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