Oscilloscope Question & Answers April 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 None Hint 2). Which one of the following oscilloscopes has memory? Analog Digital Both a and b None of the above None Hint 3). In which one of the following oscilloscopes the manipulations are possible at any time? Analog Digital Both a and b None of the above None Hint 4). Which one of the following oscilloscopes measures and displays all properties of the waveform? CRO Digital Both a and b None of the above None Hint 5). Which one of the following has a higher writing speed and higher bandwidth? CRO Digital Both a and b None of the above None Hint 6). What is the standard form of DPO? Digital Phosphor Oscilloscope Discrete Phosphor Oscilloscope Definite Phosphor Oscilloscope None of the above None Hint 7). 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 None Hint 8). 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 None Hint 9). 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 None Hint 10). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Dual trace CRO None of the above None Hint 11). 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 None Hint 12). Which one of the following oscilloscopes has less operating speed? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above None Hint 13). 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 None Hint 14). Which one of the following components in a cathode ray oscilloscope emits electrons? Y-plates X-plates Cathode None of the above None Hint 15). 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 None Hint 16). 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 None Hint 17). How many vertical amplifiers are used in dual beam cathode-ray oscilloscopes? One Two Three Four None Hint 18). 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 None Hint 19). 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 None Hint 20). The oscilloscopes are categorized into ________________ types? One Two Three Four None Hint 21). The digital storage oscilloscope comes in __________________ types? One Two Three Four None Hint 22). 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 None Hint 23). What is the advantage of a digital storage oscilloscope? High speed Complex High cost All of the above None Hint 24). The digital storage oscilloscopes are used in ______________ applications? Used in designing Used in audio equipment Used in video equipment All of the above None Hint 25). 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 None Hint Oscilloscope MCQs for Quiz 26). How many electron beams are used in dual-trace cathode-ray oscilloscope? One Two Three Four None Hint 27). How many vertical amplifiers are used in dual-trace cathode-ray oscilloscopes? One Two Three Four None Hint 28). Which one of the following has a cathode ray tube display? CRO DSO Both a and b None of the above None Hint 29). 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 None Hint 30). In which one of the following the radiation emission is very high? Cathode ray tube LCD Both a and b None of the above None Hint 31). The dimension and weight is flat and lightweight in ______________ ? Cathode ray tube LCD display Both a and b None of the above None Hint 32). In which one of the following the power consumption is high? Cathode ray tube LCD Both a and b None of the above None Hint 33). The heat generation is more in ______________? Cathode ray tube LCD Both a and b None of the above None Hint 34). According to the method of emission the electron guns are categorized into ________________ types? One Two Three Four None Hint 35). The cathode ray are reflected by ________________ field? Electric Magnetic Both a and b None of the above None Hint 36). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Digital storage oscilloscope None of the above None Hint 37). 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 None Hint 38). Which one of the following is a part of the cathode ray tube? Electron gun heater Deflection plates Cathode, grid All of the above None Hint 39). Which one of the following oscillation probe contains resistors? Active probe Passive probe Differential probe Current probe None Hint 40). 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 None Hint Read more about Cathode Ray Oscilloscope 41). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Dual beam CRO None of the above None Hint 42). Which one of the following oscillation probe contains amplifiers? Active probe Passive probe Differential probe Current probe None Hint 43). Which one of the following oscillation probe measures the high frequency signals? Active probe Passive probe Differential probe Current probe None Hint 44). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Digital storage oscilloscope None of the above None Hint 45). 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 None Hint 46). The single beam oscilloscope is one type of ______________ input oscilloscope? Single input Double input Multi-input None of the above None Hint 47). In which one of the following the dead pixels don't exist? Cathode ray tube LCD Both a and b None of the above None Hint 48). Which one of the following has good display quality? Cathode ray tube LCD Both a and b None of the above None Hint 49). The figure shown below is a block diagram of _________________ oscilloscope? Electron gun CRO Digital storage oscilloscope None of the above None Hint 50). Which one of the following oscilloscopes measures but doesn’t display properties of waveforms? CRO Digital Both a and b None of the above None Hint Oscilloscope MCQs for Exams 51). Which one of the following has a limited speed and lower bandwidth? CRO Digital Both a and b None of the above None Hint 52). What is the standard form of MDO? Mixed Digital Oscilloscope Mixed Discrete Oscilloscope Mixed Domain Oscilloscope None of the above None Hint 53). 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 None Hint 54). 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 None Hint 55). 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 None Hint 56). 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 None Hint 57). 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 None Hint 58). Which one of the following is used to generate the sawtooth Voltage? Time base generator Horizontal amplifier Vertical amplifier All of the above None Hint 59). Which one of the following probes consists of passive elements in CRO? Active probes Passive probes Both a and b None of the above None Hint 60). How many power supply block sections are there in the cathode ray oscilloscope? One Two Three Four None Hint 61). 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 None Hint 62). Which one of the following has LCD? CRO DSO Both a and b None of the above None Hint 63). 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 None Hint 64). Which one of the following oscilloscopes is a portable oscilloscope? Handheld oscilloscope PC based oscilloscope Mixed-signal oscilloscope All of the above None Hint 65). 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 None Hint 66). How many sections does an electron gun in a cathode ray tube consists of? One Two Three Four None Hint 67). 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 None Hint 68). 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 None Hint 69). 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 None Hint 70). 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 None Hint 71). In which one of the following the radiation emission is low? Cathode ray tube LCD Both a and b None of the above None Hint 72). The dimension and weight is thick and bulky in ______________ ? Cathode ray tube LCD Both a and b None of the above None Hint 73). In which one of the following dead pixels will exist? Cathode ray tube LCD Both a and b None of the above None Hint 74). What is the standard form of FEG? Field Effect Gun Field Emission Gun Field Emission Electron Gun None of the above None Hint 75). 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 None Hint Oscilloscope MCQs for Interviews 76). 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 None Hint 77). How many electron guns can be used in the split beam method? One Two Three Four None Hint 78). The oscilloscope probes are categorized into _______________ types? One Two Three Four None Hint 79). The double beam oscilloscope is one type of ______________ input oscilloscope? Single input Double input Multi input None of the above None Hint 80). How many methods of focusing are there on electron beam? One Two Three Four None Hint 81). Which one of the following is not a part of an electron gun? Heater Control grid Focusing on anode Transmitter None Hint 82). 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 None Hint 83). 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 None Hint 84). 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 None Hint 85). What is the disadvantage of a digital storage oscilloscope? High speed Portable High cost All of the above None Hint Read more about Digital Storage Oscilloscope 86). The cathode-ray oscilloscope probes are categorized into _______________ types? One Two Three Four None Hint 87). 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 None Hint 88). 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 None Hint 89). 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 None Hint 90). What is the standard form of MSO? Mixed Signal Oscilloscope Mixed Simple Oscilloscope Mixed Single Oscilloscope None of the above None Hint 91). Which one of the following oscilloscopes have an aliasing effect? Digital storage oscilloscope Analog storage oscilloscope Both a and b None of the above None Hint 92). Which one of the following oscilloscopes has a higher resolution? Analog storage oscilloscope Digital storage oscilloscope Both a and b None of the above None Hint 93). 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 None Hint 94). 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 None Hint 95). 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 None Hint 96). 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 None Hint 97). 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 None Hint 98). Which one of the following probes consists of active elements in CRO? Active probes Passive probes Both a and b None of the above None Hint 99). In how many modes does the dual-trace oscilloscope operates? One Two Three Four None Hint 100). How many electron beams are used in dual beam cathode ray oscilloscope? One Two Three Four None Hint For More MCQs Cathode Ray Oscilloscope Questions & Answers None Please fill in the comment box below. Time's up
