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