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