Oscilloscope Question & AnswersApril 5, 2022 By WatElectronics This article lists 100 Oscilloscope MCQs for Engineering Students. All the Oscilloscope Questions & Answers given below includes solution and link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the oscilloscope.The oscilloscopes come in different shapes, sizes, configurations, and capabilities. The key to any oscilloscope system is its ability to accurately reconstruct a waveform, an oscilloscope is like a camera, it captures signal images that we can interpret. The oscilloscopes perform basic measurements such as amplitude, time, frequency, and phase between signals. The DSO, MSO, DPO, and MDO are the types of oscilloscopes. The DSO and DPO both are types of digital oscilloscopes and MSO and MDO are the types of mixed-signal oscilloscopes.The digital storage oscilloscope comes in two types they are processing type and non-processing type. The processing type digit storage oscilloscope includes built-in computing power and the advantage is that all the data is already in digital form. The processing type digital storage oscilloscope can process simple functions like RMS, area, average, etc, and compute complex functions such as fast Fourier transform spectrum of the signal as well as spectrum analysis.Mesh storage and phosphor storage are the techniques used in oscilloscope CRTs. The mesh storage has a storage target and a phosphor display target. The phosphor storage oscilloscope technique uses a thin layer of phosphor to serve both as the storage and the display element.1). Which one of the following oscilloscopes stores the signals? Analog Digital Both a and b None of the above HintThe analog storage oscilloscope cannot store signals2). Which one of the following oscilloscopes has memory? Analog Digital Both a and b None of the above HintThe simple analog oscilloscope doesn’t have any memory3). In which one of the following oscilloscopes the manipulations are possible at any time? Analog Digital Both a and b None of the above HintThe readout memory is not available in an analog oscilloscopes that’s why the manipulations are not possible in an analog oscilloscopes4). Which one of the following oscilloscopes measures and displays all properties of the waveform? CRO Digital Both a and b None of the above HintThe CRO is also the type of oscilloscope, it measures but doesn’t display properties of the waveforms5). Which one of the following has a higher writing speed and higher bandwidth? CRO Digital Both a and b None of the above HintThe digital storage oscilloscope has limited speed and lower bandwidth6). What is the standard form of DPO? Digital Phosphor Oscilloscope Discrete Phosphor Oscilloscope Definite Phosphor Oscilloscope None of the above HintThe DPO is one type of digital oscilloscope7). Which one of the following is oscilloscopes doesn’t have back mode? Digital storage oscilloscope Cathode ray oscilloscope Both a and b None of the above HintThe digital storage oscilloscope has a back mode because it stores the data8). In which one of the following oscilloscopes we can’t archive the data? Digital storage oscilloscope Cathode ray oscilloscope Both a and b None of the above HintWe can archive the data in a digital storage oscilloscope because they have storage memory9). Which one of the following oscilloscopes is more stable and accurate? Digital storage oscilloscope Cathode ray oscilloscope Both a and b None of the above HintThe cathode ray oscilloscope is less stable and accurate because the time base is generated by the ramp circuit10). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Dual trace CRO None of the above HintIn dual-trace cathode-ray oscilloscope only one vertical amplifier is used11). Which one of the following oscilloscopes can't function under variable persistence storage mode? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintAn analog storage oscilloscope can function under variable persistence storage mode12). Which one of the following oscilloscopes has less operating speed? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintThe analog storage oscilloscope has a high operating speed when compared to DSO13). The time base in a digital storage oscilloscope can be generated by a _____________ ? Crystal clock Ramp circuit Both a and b None of the above HintThe time base in an analog storage oscilloscope can be generated by a ramp circuit14). Which one of the following components in a cathode ray oscilloscope emits electrons? Y-plates X-plates Cathode None of the above HintThe Y-plate and X-plate in a cathode ray oscilloscope deflects the electron beam vertically and horizontally15). Which one of the following components in a cathode ray oscilloscope is used to focus the electrons onto the screen? Y-plates X-plates Focusing on anode None of the above HintThe focusing anode, accelerating anode both are components of an electron gun in a cathode ray oscilloscope16). Which one of the following components in a cathode ray oscilloscope is control the number of electrons and brightness? Y-plates X-plates Control grid None of the above HintThe control grid is one of the components of the electron gun in a cathode ray oscilloscope 17). How many vertical amplifiers are used in dual beam cathode-ray oscilloscopes? One Two Three Four HintIn dual-trace cathode-ray oscilloscope only one vertical amplifier is used18). In which one of the following oscilloscopes the two fast trancient events can’t be captured? Dual-trace oscilloscope Dual-beam oscilloscope Both a and b None of the above HintIn dual-beam cathode-ray oscilloscope the two fast transient events can be captured19). Which one of the following knobs in a cathode ray oscilloscope is used to set the type of input signal? AC/DC/GD Y-position knob X-position knob All of the above HintThe intensity, ext, channel set, time/div, x &y position, volt/div are the knobs of cathode-ray ooscilloscope20). The oscilloscopes are categorized into ________________ types? One Two Three Four HintThe digital storage oscilloscope and analog oscilloscope are two types of oscilloscopes21). The digital storage oscilloscope comes in __________________ types? One Two Three Four HintThe digital storage oscilloscope comes in two types they are processing type and non-processing type22). Which one of the following is used to amplify the sawtooth Voltage? Time base generator Horizontal amplifier Both a and b All of the above HintThe time base generator, horizontal amplifier, vertical amplifier are components of CRO, were the time base generator sawtooth voltage23). What is the advantage of a digital storage oscilloscope? High speed Complex High cost All of the above HintThe main disadvantage of digital storage oscilloscopes is they are very expensive and complex24). The digital storage oscilloscopes are used in ______________ applications? Used in designing Used in audio equipment Used in video equipment All of the above HintThe digital storage oscilloscope can also be used to analyze tv waveforms, used to check faulty components, etc25). Which one of the following oscilloscopes produces two traces on the screen? Dual trace oscilloscope Dual storage oscilloscope Dual-beam oscilloscope None of the above HintThe dual-trace oscilloscope produces traces on the screenOscilloscope MCQs for Quiz26). How many electron beams are used in dual-trace cathode-ray oscilloscope? One Two Three Four HintThe dual-trace uses one electron beam and the dual beam uses two electron beams27). How many vertical amplifiers are used in dual-trace cathode-ray oscilloscopes? One Two Three Four HintIn dual beam cathode-ray oscilloscope two vertical amplifiers are used28). Which one of the following has a cathode ray tube display? CRO DSO Both a and b None of the above HintThe digital storage oscilloscope has an LCD display29). Which one of the following knobs in a cathode ray oscilloscope is used to improve the waveform sharpness? AC/DC/GD Y-position knob X-position knob Focus knob HintThe intensity, ext, channel set, time/div, x &y position, volt/div are the knobs of the cathode ray oscilloscope30). In which one of the following the radiation emission is very high? Cathode ray tube LCD Both a and b None of the above HintIn LCD display the radiation emission is less when compared to CRT31). The dimension and weight is flat and lightweight in ______________ ? Cathode ray tube LCD display Both a and b None of the above HintThe dimension and weight are thick and bulky in cathode ray tube32). In which one of the following the power consumption is high? Cathode ray tube LCD Both a and b None of the above HintThe power consumption is less in LCD compared to CRT33). The heat generation is more in ______________? Cathode ray tube LCD Both a and b None of the above HintThe heat generation is less in LCD compare to CRT34). According to the method of emission the electron guns are categorized into ________________ types? One Two Three Four HintThe thermal electron gun, Schottky electron gun, field emission electron gun are the types of electron guns according to a method of emission35). The cathode ray are reflected by ________________ field? Electric Magnetic Both a and b None of the above HintThe cathode rays convey negative charges and energy36). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Digital storage oscilloscope None of the above HintThe digital storage oscilloscope measures and displays all properties of waveform37). Which one of the following oscilloscopes doesn’t have an aliasing effect? Digital storage oscilloscope Analog storage oscilloscope Both a and b None of the above HintThe digital storage oscilloscope has an aliasing effect, because of the aliasing effect the storage bandwidth is limited38). Which one of the following is a part of the cathode ray tube? Electron gun heater Deflection plates Cathode, grid All of the above HintThe electron gun heater, cathode, deflection plates, grid all are parts of the cathode ray tube39). Which one of the following oscillation probe contains resistors? Active probe Passive probe Differential probe Current probe HintThe active probe oscilloscope contains only active components40). Which one of the following knobs in the cathode ray oscilloscope is used to adjust the vertical trace on the screen? Intensity knob Y-position knob X-position knob All of the above HintThe intensity, ext, channel set, time/div, x &y position, volt/div are the knobs of the cathode ray oscilloscope Read more about Cathode Ray Oscilloscope41). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Dual beam CRO None of the above HintIn dual beam cathode-ray oscilloscope two vertical amplifiers are used42). Which one of the following oscillation probe contains amplifiers? Active probe Passive probe Differential probe Current probe HintThe passive probe oscilloscope contains only passive components such as amplifiers43). Which one of the following oscillation probe measures the high frequency signals? Active probe Passive probe Differential probe Current probe HintThe differential probe oscilloscopes is one type of probe that is used measure the high frequency signals44). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Digital storage oscilloscope None of the above HintThe accelerating anode, focusing anode both are components of an electron gun in a cathode ray oscilloscope45). Which one of the following knobs in a cathode ray oscilloscope is used to select the desired period time of the waveform? AC/DC/GD Y-position knob X-position knob Time/div HintThe intensity, ext, channel set, time/div, x &y position, volt/div are the knobs of the cathode ray oscilloscope46). The single beam oscilloscope is one type of ______________ input oscilloscope? Single input Double input Multi-input None of the above HintThe single beam and double beam oscilloscopes are multi-input oscilloscopes47). In which one of the following the dead pixels don't exist? Cathode ray tube LCD Both a and b None of the above HintThe dead pixels exist in liquid crystal displays but do exist in CRT48). Which one of the following has good display quality? Cathode ray tube LCD Both a and b None of the above HintWhen compared to CRT the quality is comparatively better in the LCD49). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Digital storage oscilloscope None of the above HintThe cathode ray oscilloscope has a cathode ray tube display50). Which one of the following oscilloscopes measures but doesn’t display properties of waveforms? CRO Digital Both a and b None of the above HintThe digital storage oscilloscope measures and displays all properties of waveformOscilloscope MCQs for Exams51). Which one of the following has a limited speed and lower bandwidth? CRO Digital Both a and b None of the above HintThe CRO has a higher writing speed and higher bandwidth compared to a digital storage oscilloscope52). What is the standard form of MDO? Mixed Digital Oscilloscope Mixed Discrete Oscilloscope Mixed Domain Oscilloscope None of the above HintThe MDO is one type of domain oscilloscope53). Which one of the following oscilloscopes can function under variable persistence storage mode? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintThe digital storage oscilloscope can’t function under variable persistence storage mode54). Which one of the following oscilloscopes has a high operating speed? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintThe digital storage oscilloscope has less operating speed when compared to ASO55). The time base in a analog storage oscilloscope can be generated by a _____________ ? Crystal clock Ramp circuit Both a and b None of the above HintThe time base in a digital storage oscilloscope can be generated by a crystal clock56). Which one of the following oscilloscopes can’t produce bright images for high-frequency signals? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintThe digital storage oscilloscope can produce bright images for high-frequency signals57). Which one of the following components in a cathode ray oscilloscope accelerates the electrons to a higher speed? Y-plates X-plates Accelerating anode None of the above HintThe accelerating anode, focusing anode both are components of an electron gun in a cathode ray oscilloscope58). Which one of the following is used to generate the sawtooth Voltage? Time base generator Horizontal amplifier Vertical amplifier All of the above HintThe time base generator, horizontal amplifier, vertical amplifier are components of CRO59). Which one of the following probes consists of passive elements in CRO? Active probes Passive probes Both a and b None of the above HintThe active probe and passive probe are the types of cathode ray oscilloscope probes60). How many power supply block sections are there in the cathode ray oscilloscope? One Two Three Four HintThe power supply block sections are of two types they are high and low power supplies61). In which one of the following oscilloscopes the two fast transient events can be captured? Dual trace oscilloscope Dual-beam oscilloscope Both a and b None of the above HintIn dual-trace cathode-ray oscilloscope the two fast transient events can’t be captured62). Which one of the following has LCD? CRO DSO Both a and b None of the above HintThe cathode ray oscilloscope has a cathode ray tube display63). Which one of the following knobs in a cathode ray oscilloscope is used to select the desired voltage of the waveform? AC/DC/GD Y-position knob X-position knob Volt/div HintThe intensity, ext, channel set, time/div, x &y position, volt/div are the knobs of the cathode ray oscilloscope64). Which one of the following oscilloscopes is a portable oscilloscope? Handheld oscilloscope PC based oscilloscope Mixed-signal oscilloscope All of the above HintThe name of the handheld oscilloscope says it’s self that it is a portable oscilloscope65). The mixed-signal oscilloscopes are used in ______________ type of converters? Analog to digital Digital to analog Analog to digital or digital to analog None of the above HintThe mixed-signal oscilloscopes are used in digital to analog or analog to digital converters66). How many sections does an electron gun in a cathode ray tube consists of? One Two Three Four HintThe electron gun is one of the sections in the cathode ray tube oscilloscope67). Which one of the following components in the cathode ray oscilloscope is used to delay the signal? Amplifier CRT Delay line All of the above HintThe delay line, amplifiers, CRT, time base generators are the components of the cathode ray tube oscilloscope68). The focusing anode in cathode ray tube is located at ________________ anode? Accelerating anode Pre accelerating anode Between accelerating and Pre accelerating None of the above HintThe focusing anode in the cathode ray tube is located between accelerating and pre accelerating anodes69). In cathode-ray oscilloscope the post acceleration is needed when the frequency of signal is ________________ MHz? 1 Hz 2 Hz 5 Hz More than 10 MHz Hint In a cathode-ray oscilloscope, the post acceleration is needed when the frequency of the signal is more than 10 MHz70). Which one of the following knobs in the cathode ray oscilloscope is used to adjust the horizontal trace on the screen? Intensity knob Y-position knob X-position knob All of the above HintThe intensity, ext, channel set, time/div, x &y position, volt/div are the knobs of the cathode ray oscilloscope71). In which one of the following the radiation emission is low? Cathode ray tube LCD Both a and b None of the above HintIn cathode ray tube the radiation emission is very high when compared to LCD72). The dimension and weight is thick and bulky in ______________ ? Cathode ray tube LCD Both a and b None of the above HintThe dimension and weight is flat and lightweight on LCD73). In which one of the following dead pixels will exist? Cathode ray tube LCD Both a and b None of the above HintThe dead pixels do not exist in cathode ray tube74). What is the standard form of FEG? Field Effect Gun Field Emission Gun Field Emission Electron Gun None of the above HintThe FEG is one type of electron gun75). Which one of the following parts in an electron gun converts the electric energy into the form of heat? Heater Control grid Focusing on anode All of the above HintThe control grid, focusing anode, accelerating & pre accelerating anodes are the parts of an electron gunOscilloscope MCQs for Interviews76). Which one of the following methods is used to generate the two-electron beams within the cathode ray tube? Split beam Double gun Both a and b None of the above HintThere are only two methods are there to generate the two-electron beams within the cathode ray tube they are double gun and split beam methods77). How many electron guns can be used in the split beam method? One Two Three Four HintThe split beam is one of the modes of operation to generate the two-electron beams in a cathode ray tube78). The oscilloscope probes are categorized into _______________ types? One Two Three Four HintThe active and passive oscilloscope probes are two types of probes in an oscilloscope79). The double beam oscilloscope is one type of ______________ input oscilloscope? Single input Double input Multi input None of the above HintThe single beam and double beam oscilloscopes are multi input oscilloscopes80). How many methods of focusing are there on electron beam? One Two Three Four HintThe cathode-ray oscilloscope uses an electrostatic focusing method or tube81). Which one of the following is not a part of an electron gun? Heater Control grid Focusing on anode Transmitter HintThe control grid, focusing anode, accelerating & pre accelerating anodes are the parts of an electron gun82). Which one of the following knobs in a cathode ray oscilloscope is used to increase the number of electron beams? Intensity Ext Channel set All of the above HintThe intensity, ext, channel set, time/div, x &y position, volt/div are the knobs of the cathode ray oscilloscope83). Which one of the following is used to convert the signals into trigger pulses? Time base generator Trigger circuit Delay line All of the above HintThe trigger circuit is one of the components in the cathode ray oscilloscope84). In which one of the following oscilloscopes the two signals can’t be displayed together in real-time? Dual trace oscilloscope Dual-beam oscilloscope Both a and b None of the above HintIn dual-beam cathode-ray oscilloscope the two signals can be displayed together in real-time simultaneously85). What is the disadvantage of a digital storage oscilloscope? High speed Portable High cost All of the above HintThe advantage of digital storage oscilloscopes is they are portable, have high speed, have a simple user interface, and the bandwidth is high Read more about Digital Storage Oscilloscope86). The cathode-ray oscilloscope probes are categorized into _______________ types? One Two Three Four HintThe active and passive probes consist of active and passive elements87). Which one of the following oscilloscopes is less stable and accurate? Digital storage oscilloscope Cathode ray oscilloscope Both a and b None of the above HintThe digital storage oscilloscope is more stable and accurate because the time base is generated by a crystal clock88). In which one of the following oscilloscopes we can archive the data? Digital storage oscilloscope Cathode ray oscilloscope Both a and b None of the above HintIn cathode-ray oscilloscope, we can’t archive the data because of no storage memory or storage system89). Which one of the following is oscilloscopes have a back mode? Digital storage oscilloscope Cathode ray oscilloscope Both a and b None of the above HintThe cathode ray oscilloscope doesn’t have back mode but it can collect the data after triggered90). What is the standard form of MSO? Mixed Signal Oscilloscope Mixed Simple Oscilloscope Mixed Single Oscilloscope None of the above HintThe MSO is one type of Signal oscilloscope91). Which one of the following oscilloscopes have an aliasing effect? Digital storage oscilloscope Analog storage oscilloscope Both a and b None of the above HintThe analog storage oscilloscope doesn’t have an aliasing effect92). Which one of the following oscilloscopes has a higher resolution? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintThe analog storage oscilloscope has high operating speed and lower resolution when compared to DSO93). Which one of the following components in a cathode ray oscilloscope deflects the electron beam horizontally? Y-plates X-plates Both a and b None of the above HintThe Y-plate component in a cathode ray oscilloscope deflects the electron beam vertically94). Which one of the following oscilloscopes can produce bright images for high-frequency signals? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintThe analog storage oscilloscope can’t produce bright images for high-frequency signals95). Which one of the following oscilloscopes always collects the data and stops when triggered? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above HintThe analog storage oscilloscope collects the data only after triggering96). Which one of the following components in a cathode ray oscilloscope deflects the electron beam vertically? Y-plates X-plates Both a and b None of the above HintThe X-plate component in a cathode ray oscilloscope deflects the electron beam horizontally97). Which one of the following is used to amplify the sawtooth voltage in the vertical section? Time base generator Vertical amplifier Horizontal amplifier All of the above HintThe time base generator, horizontal amplifier, vertical amplifier are components of the cathode ray oscilloscope98). Which one of the following probes consists of active elements in CRO? Active probes Passive probes Both a and b None of the above HintThe active probe and passive probe are the types of cathode ray oscilloscope probes99). In how many modes does the dual-trace oscilloscope operates? One Two Three Four HintThe alternate and chopped modes are type of operations in DTO100). How many electron beams are used in dual beam cathode ray oscilloscope? One Two Three Four HintThe dual-trace uses one electron beam and the dual-beam uses two electron beamsFor More MCQsCathode Ray Oscilloscope Questions & Answers Please fill in the comment box below. Time is Up! Time's up
