CMOS Question & Answers August 30, 2022 By WatElectronics This article lists 75 CMOS MCQs for engineering students. All the CMOS Questions & Answers given below include a hint and a 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 CMOS. The CMOS is used to perform logical functions and the CMOS section is divided into two main parts that are PMOS and NMOS. The static CMOS, dynamic CMOS, domino logic CMOS, and dual rail domino logic come under the CMOS logic family. The static CMOS is implemented by building the pull-down and pull-up switching networks. The basic features of static CMOS logic are; that there will be no cascading issues, noise margins are relatively high, the input impedance is high, the output impedance is low, and the path between ground & Vdd is zero and steady. The PMOS, Bi-MOS, CMOS, and NMOS come under the MOS logic family. The PMOS logic family uses only P-channel MOSFETS, the NMOS logic family uses only N-channel MOSFETS, the CMOS logic family uses both N and P-channel devices, and the BI-MOS logic family uses both MOS devices and bipolar devices. The large fan-out capability, low power dissipation, very high noise margin and very high noise immunity, low propagation delay are the advantages of CMOS. The CMOS is used in registers, microcontrollers, microchips, and other digital circuits. 1). In which one of the following IC technology, the switch implementation is good? BJT CMOS Both a and b None of the above None Hint 2). Which one of the following is an example of small-scale integration? Counters Logic Gates Peripherals All of the above None Hint 3). What is the standard form of PPS? Passive Pixel Sensor Positive Pixel Sensor Positive Passive sensor None of the above None Hint 4). What are the advantages of CMOS image sensors? Consumes less power Cheaper Better performance All of the above None Hint 5). What is the standard form of PDN? Pull Up Network Pull Down Network Push Down Network None of the above None Hint 6). The AC voltage gain of P-channel active load inverter is ______? -gm1/gm2 -gm1/gm2+gmb2 -gm1/gds1+gds2 None of the above None Hint 7). What is the standard form of VCCS amplifier? Voltage Current Controlled Source Amplifier Voltage Controlled Current Signal Amplifier Voltage Controlled Current Source Amplifier None of the above None Hint 8). The output power of transformer coupling and artificial dielectric differential transmission is ___________ dBm? 31.6 12.5 21.34 56.78 None Hint 9). The figure shown below is a circuit diagram of ______ inverter? PWM inverter KVM inverter CMOS inverter None of the above None Hint 10). What is the standard form of VTCMOS? Variable Threshold CMOS Volumetric Threshold CMOS Vane Threshold CMOS None of the above None Hint 11). In which year, the vacuum tube diode was invented? 1980 1999 1904 1990 None Hint 12). What is the standard form of VCVS amplifier? Voltage Current Voltage Source Amplifier Voltage Controlled Voltage Signal Amplifier Voltage Controlled Voltage Source Amplifier None of the above None Hint 13). The output power of continuous gate voltage control is ________ dBm? 31.6 12.5 27 56.78 None Hint 14). The access time of 16 MB CMOS SRAM is______ nano seconds? One Ten Four Eight None Hint 15). What is the standard from of SFPL? Simple Follower Pull Up Logic Single Follower Pull Up Logic Source Follower Pull Up Logic None of the above None Hint 16). Which one of the following also known as zipper CMOS? Clock CMOS logic NP domino logic Cascade voltage switch logic None of the above None Hint 17). What is the standard from of CVSL? Current Voltage Switch Logic Common Voltage Switch Logic Cascade Voltage Switch Logic None of the above None Hint 18). The AC voltage gain of n-channel active load inverter is ______? -gm1/gm2 -gm1/gm2+gmb2 -gm1/gds1+gds2 None of the above None Hint 19). The figure shown below is a block diagram of ________ logic? PWM Static CMOS Dynamic CMOS None of the above None Hint 20). What is the standard form of MTCMOS? Minimum Threshold CMOS Multiple Threshold CMOS Maximum Threshold CMOS None of the above None Hint CMOS MCQs for Interviews 21). In which year, the semiconductor replacing vacuum tube was invented? 1980 1999 1945 1990 None Hint 22). The AC output resistance of n channel depletion load inverter is _______? 1/gm2+gmb2 1/gmb2+gds1+gds2 -gm1/gds1+gds2 1/gm2 None Hint 23). The output power of transformer-based voltage type is _________ dBm? 31.6 12.5 21.8 56.78 None Hint 24). The access time of 256 MB CMOS DRAM is _______ nano seconds? One Ten Four Eight None Hint 25). The standby power of 256 MB CMOS DRAM is _______ W/Mbit? 0.01 5-10 2*10^-4 0.03-0.1 None Hint 26). What is the standard form of C^2MOS? Common CMOS Register CMOS Clocked Register Clocked CMOS Register None of the above None Hint 27). Which one of the following logics comes under bipolar family? I2L TTL RTL All of the above None Hint 28). The AC voltage gain of current source load inverter is ______? -gm1/gm2 -gm1/gm2+gmb2 -gm1/gds1+gds2 None of the above None Hint 29). The figure shown below is a structure of _________ logic? PWM Static CMOS Dynamic CMOS None of the above None Hint 30). What is the standard form of CVSL? CMOS Voltage Switch Logic Common Voltage Switch Logic Cascade Voltage Switch Logic None of the above None Hint 31). In which year, the point contact transfer resistance device BJT was invented? 1980 1999 1947 1990 None Hint 32). Which one of the following is an example of ultra-large-scale integration? Special purpose processors Gates Peripheral All of the above None Hint 33). Which one of the following is an example of giant scale integration? Special purpose processors Gates Peripheral Embedded system None Hint 34). What is the standard form of APS? Active Pixel Sensor Active Passive Sensor Active Positive sensor None of the above None Hint 35). The active pixel sensors are categorized into ______ types? One Two Three Four None Hint 36). The AC voltage gain of n-channel depletion load inverter is _______? -gm1/gmb2 -gm1/gm2+gmb2 -gm1/gds1+gds2 None of the above None Hint 37). The output power of stacked NMOS and PMOS structure is ________ dBm? 31.6 12.5 21.8 30.02 None Hint 38). The speed of 256 MB CMOS DRAM is________ GHz? 0.1 to 10 0.01-0.02 0.01-0.04 0.03-0.012 None Hint 39). The figure shown below is a logic structure of _______? PWM Static CMOS Dynamic CMOS None of the above None Hint 40). What is the standard form of TSPC? True Small Phase Clock True Sample Phase Clock True Single-Phase Clock None of the above None Hint CMOS MCQs for Exams 41). In which year, the junction transistor was invented? 1980 1999 1947 1951 None Hint 42). Which one of the following is an example of very large-scale integration? Counters Gates Peripheral All of the above None Hint 43). What is the standard form of PUN? Pull Up Network Push UpNetwork Push Down Network None of the above None Hint 44). The AC output resistance of p-channel active load inverter is ______? -gm1/gmb2 -gm1/gm2+gmb2 -gm1/gds1+gds2 1/gm2 None Hint 45). The output power of stacked NMOS and transformer PMOS is ________ dBm? 23.4 12.5 21.8 30.02 None Hint 46). The standby power of 16 MB CMOS SRAM is _____________ W/Mbit? 0.01 5-10 0.01-0.04 0.03-0.1 None Hint 47). Which one of the following comes under MOS family? CMOS RTL TTL DTL None Hint 48). What is the standard form of Bi-MOS? Binary Input MOS Bipolar MOS Bipolar Input MOS None of the above None Hint Read more about CMOS and NMOS 49). The figure shown below is a block diagram of two stage __________________ power amplifier? PWM CMOS CCD None of the above None Hint 50). Which one of the following is a type of static circuit? Domino logic circuit NORA logic circuit CVSL circuit None of the above None Hint CMOS Important MCQs for Quiz 51). Who invented integrated circuits F/F with 2-T germanium slice and gold wires? Shockley Bardeen Jack Kilby None of the above None Hint 52). In which one of the following IC technology the switch implementation is poor? BJT CMOS Both a and b None of the above None Hint 53). Which one of the following is an example of large-scale integration? Counters Gates ROM and RAM All of the above None Hint 54). What is the standard form of PGA? Pin Grid Array Pen Grid Array Photodiode Grid Array None of the above None Hint 55). The AC output resistance of n-channel active load inverter is ________________? 1/gm2+gmb2 -gm1/gm2+gmb2 -gm1/gds1+gds2 1/gm2 None Hint 56). The density of 16 MB CMOS SRAM is _____________ Mbit/cm^2? 0.1 to 10 5-10 0.01-0.04 0.03-0.1 None Hint 57). What is the standard form of I2L? Inter Injection Logic Inter Integrated Logic Integrated Injection Logic None of the above None Hint 58). Which one of the following logics also known as current mode logic? ECL TTL DTL I2L None Hint 59). The figure shown below is a block diagram of __________________ Schmitt trigger? PWM CMOS CCD None of the above None Hint 60). Which one of the following is a type of dynamic circuit? TSPC logic circuit Classical CMOS CVSL circuit None of the above None Hint 61). Who invented first MOSFET? Shockley Bardeen Jack kilby Kahng Bell Lab None Hint 62). How many types of design rules are there? One Two Three Four None Hint 63). The CMOS image sensors are categorised into_________ types? One Two Three Four None Hint 64). The AC output resistance of current source load inverter is _______? 1/gm2+gmb2 1/gds1+gds2 -gm1/gds1+gds2 1/gm2 None Hint 65). What is the standard form of TSPCR? True Single-Phase Clocked Register True Simple-Phase Clocked Register True Single-Phase Common Register None of the above None Hint 66). Which one of the following logic family uses both MOS devices and bipolar devices? DTL TTL Bi-MOS All of the above None Hint 67). Which one of the following logic family uses both P and N channel devices? TTL DTL ECL CMOS None Hint 68). Which one of the following logic family using only N channel MOSFETS? PMOS CMOS NMOS All of the above None Hint 69). The figure shown below is a block diagram of __________ Schmitt trigger? PWM CMOS C2MOS None of the above None Hint 70). What is the standard form of LOCOS? Local Oxidation of Semiconductor Local Oxidation of Sulphur Local Oxidation of Silicon None of the above None Hint 71). Who invented common metal oxide semiconductor that is CMOS? Shockley Frank wanlass Bardeen Kahng Bell Lab None Hint 72). Which one of the following is an example of medium scale integration? Counters Gates Peripherals All of the above None Hint 73). What is the standard form of CCD image sensor? Charge Coupled Device Charged Common Device Common Coupled Device None of the above None Hint 74). What is the standard form of DIP? Differential line package Dual in line package Dual in Long package None of the above None Hint 75). The speed of 16 MB CMOS SRAM is _____________ GHz? 0.1 to 10 0.01-0.02 0.01-0.04 0.03-0.1 None Hint Please fill in the comment box below. Time's up
