Resistor Question & Answers April 1, 2022 By WatElectronics This article lists 100 Resistor MCQs for engineering students. All the Resistor 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 their fundamentals on Resistor. Electronic and electric circuits and devices are built with billions of passive and active electronic and electrical components such as resistors, capacitors, inductors, current sources, etc. One among these components is a resistor which is a passive component. A resistor is designed with two terminals, available in different sizes, shapes, packages, and types depending on the application. Its main purpose is to oppose the current flow in order to protect the electrical or electronic circuits from breakdowns. The value of resistance is measured in terms of ohms. They are classified as wire wound resistor, special resistor, metal film resistor, variable resistor, network and surface mounted resistor, thick film, thin-film resistor, etc. These resistors are designed based on applications requirements are deployed as fuses, circuit breakers, alarms, clocks, street lights, etc. They benefit in terms of budget-friendly, zero union potential, simple in design, etc. But lack in resisting high current value. 1). A resistor has ___ number of terminals? 1 2 3 0 Hint 2). Which of the following electronic component that opposes current flow? Resistor Capacitor Inductor All the above Hint 3). A resistor is a ____ component? Active Passive Both a and b None of the above Hint 4). Which of the following is the working principle of a device that oppose current flow? Electric resistance Inductance Flemings law EM law Hint 5). The main purpose of resistor is to maintain ____ parameters of an electronic circuit? Current Voltage Inductance Both a and b Hint 6). Current is measured in terms of ____ units? Amperes Volts Ohms Farads Hint 7). Voltage is measured in terms of ____ units? Amperes Volts Ohms Farads Hint 8). Resistance is measured in terms of _____ units? Amperes Volts Ohms Farads Hint 9). Which of the following is ohms symbol? Ω € β ∑ Hint 10). Which of the following scientist created resistor? Otis Frank George Ohms James Frank Both a and b Hint 11). Which of the following are the types of resistors? Wire wound resistor Metal film resistor Special resistor All the above Hint Read more about Wire Wound Resistor 12). A wire wound type resistor is constructed using ____ substances? Inductor Conductor Semiconductor Insulator Hint 13). Which of the following is the major application of wire wound resistor? Circuit breakers Fuses Switches Both a and b Hint 14). Which of the following are the basic consideration while designing wire wound based resistors? Application Mounting Resistance range All the above Hint 15). Which of the following substances are used for designing wire wound type resistors? Nickel-Chromium Copper-Nickel Iron-Copper Both a and b Hint 16). Which of the following are the types of wire wound type resistors? Power based wire wound Precision based wire wound Magnetic based wire wound Both a and b Hint 17). In which of the following sensor ways a wire wound type resistor can be modified? Temperature Current Potentiometer All the above Hint Read more about Types of Sensors. 18). Which of the following is the application of precision wire wound based resistor? Audio Frequency Attenuator Measurement Bridges Calibration Equipment All the above Hint 19). Which of the following is the resistance tolerance value of wire wound based resistor? 5.1% 0% 0.2% 0.3% Hint 20). Which of the following is the temperature coefficient of wire wound based resistor? 5 ppm/degree C 6 ppm/ degree C 7 ppm/ degree C 8 ppm/ degree C Hint 21). Which of the following is the range of power wire wound type of resistor? 0.5W to greater than 1000W 1.5W to greater than 100W 0.15W to greater than 100W 0.25W to greater than 100W Hint 22). Power wound type resistors are classified based on ____ parameter? Length Coating substance Dimension All the above Hint 23). Which of the following substance is used for lowest power dissipation levels in wire wound based resistor? Silicon resins Nickel Cobalt All the above Hint 24). Which of the following is temperature stand limit of a power wire wound based resistor? 300degree Centigrade 400 degree centigrade 500 degree centigrade 600 degree centigrade Hint 25). If a power wire wound based resistor is coated with vitreous enamel then the surface temperature ranges up to ___ degree centigrade? 400 300 200 100 Hint Resistor Questions and Answers 26). Which of the following is the components of power based wire wound resistor? Ceramic core Ceramic coating Non ceramic core Both a and b Hint 27). Which of the following are the substances of ceramic coating in power based wire wound resistor? Ceramic core Ceramic coating Non ceramic core Both a and b Hint 28). Which of the following are the substances used for high power dissipation values of a wire wound type resistor? Aluminum Fins Steel Both a and b Hint 29). A potentiometer based wire wound has ___ number of terminals? 1 2 3 4 Hint 30). Which of the following is the property of a wire wound type resistor? Accuracy Enhance power ratings Minimum resistance value All the above Hint 31). A power type wire wound resistor is ___ in nature? Resistive Inductive Non-inductive Capacitive Hint 32).Which of the following is the properties of precision type of resistor? Low noise application Greater stability Greater power application All the above Hint 33).On which of the following factors does resistance of a wire wound type resistor depends on? Metal wire resistivity Length of wire Area of wire All the above Hint 34). In a resistivity of a metal wire the increase in resistors resistance _____ the resistivity of a metal wire. Increases Decreases Zero Infinite Hint 35). Which of the following are the advantages of wire wound type resistor? Deployed in high power based circuits Zero noise effect Constant temperature All the above Hint 36). Which of the following are the disadvantages of wire wound type resistor? Suitable for low frequencies Non-inductive based resistors are deployed in high frequencies Occupies large area All the above Hint 37). Special type of resistors are classified in to ___ number of types? 2 3 4 5 Hint 38). LDR stands for ____? Light Dependent Resistor Light Divide Resistor Light Dive Resistor Both a and b Hint Read more about Light Dependent Resistor.. 39). Which of the following are the applications of LDR resistors? Street light Alarm Clocks All the above Hint 40). Which of the following is the resistance value of LDR? 1Ohms 1Mohms 1Kohms 10Ohms Hint 41). A LDR is also called ___? Photo resistor Water resistor Photon All the above Hint 42). Which of the following class of substances are used for designing LDR resistor? Conducting Semiconducting Insulating All the above Hint 43). Which of the following metals are used in LDR? CdSe PbS InS All the above Hint 44). On which of the following principle an LDR device works? Photoconductivity Photo-resistivity Photo-inductivity All the above Hint 45). Which of the following are the components of LDR circuit? LDR Relay Darlington pair All the above Hint 46). Which of the following is the input power supply of a LDR circuit? Bridge rectifier Battery Capacitor Both a and b Hint 47). A bridge rectifier in LDR resistor uses _____ type of transformer? Step-down Step-up Zero powered All the above Hint 48). Which of the following is the voltage value of a step down transformer in LDR resistor circuit? 230v/12v 100v/12v 250v/19v 300v/30v Hint 49). Diode in LDR resistor converts ___ voltage to ____ voltage? AC to DC AC to AC DC to DC DC to AC Hint 50). Which of the following is the value of power dissipation of an LDR circuit? 200mW 100mW 250mW 300mW Hint Resistor MCQs for Quiz 51). Which of the following is the maximum value of voltage at ‘0’ lux in an LDR? 200V 300V 400V 500V Hint 52). Which of the following is the peak wavelength of LDR? 600nm 500nm 400nm 300nm Hint 53). Which of the following is the minimum value of resistance of LDR in 10lux? 1.8kohms 2kohms 2.5kohms 3kohms Hint 54). Which of the following is the maximum value of resistance of LDR in 10lux? 1.8kohms 2kohms 4.5kohms 3kohms Hint 55). Which of the following is the typical resistance of LDR at 100lux? 0.7kohms 0.8kohms 0.9kohms 1kohms Hint 56). Which of the following is the value of dark resistance of LDR after 1 sec? 0.03Mohms 0.25Mohms 0.7Mohms 0.08Mohms Hint 57). Which of the following is the value of dark resistance of LDR after 5 sec? 0.03Mohms 0.25Mohms 0.7Mohms 0.08Mohms Hint 58). In LDR resistor, the value of resistance is ____ in presence of strong light? High Low Zero None of the above Hint 59). In LDR resistor, the value of resistance is ____ in presence of minimum light? High Low Zero None of the above Hint 60). LDR resistors are classified in to ___ types? 1 2 3 4 Hint 61). Which of the following are the advantages of LDR resistor? Budget friendly Zero union potential Simple in design All the above Hint 62). Which of the following are the disadvantages of LDR resistor? Hysteresis effect Narrow spectral response Low device response All the above Hint 63).Which of the following are the types of fixed resistors? Surface mount Thick film Thin film All the above Hint 64). A fixed resistors has ___ number of terminals? 2 1 3 4 Hint 65). Which of the following is the resistance value of fixed resistor? 0 to 100Gohms 10 to 100Mohms 10 to 100 Kohms 10 to 100 Ohms Hint 66). A fixed resistor has ___ number of resistor color bands? 1 2 3 4 Hint 67). Which of the following band of resistor represents numbers in ohms? First Second Third Both a and b Hint 68). Which of the following band of resistor represents resistance variance value? First Second Third Fourth Hint 69). Which of the following band of resistor represents resistance tolerance value? First Second Third Fourth Hint Read more about Resistors Color. 70). Which of the following is the tolerance value of fixed resistor? +/- 1% +/- 2% +/- 3% +/- 5% Hint 71). Which of the following band of resistor indicates failure rate? First Second Fifth Fourth Hint 72). A fixed band type resistors are classified in to ___ number of types? 5 7 8 10 Hint Read more about Carbon Composition Resistor. 73). Which of the following are the thin film resistor? Carbon film Metal film Fusible Both a and b Hint 74). Which of the following is the example of thin film type resistor? Fusible Cermet oxide Metal oxide All the above Hint 75). A carbon composition type of resistor is built using a combination of ___ substance? Clay Graphite Diamond Both a and b Hint Resistor MCQs for Exams 76). A carbon composition type resistor operates accurately at ____ conditions? Low frequency Low power Higher resistance Both a and b Hint 77). A surface mount resistor has __ number of leads? 0 1 2 3 Hint 78).Which of the following are the advantages of surface mount resistor? Small size Good tolerance High Accuracy All the above Hint 79). Which of the following are the disadvantages of surface mount resistor? High power rating Physical rework Complex PCB design All the above Hint 80). Which of the following are the advantages of surface mount technology? High reliability Permits automation process Good temperature stability All the above Hint 81). An SMD based resistor is of ____ shape? Circular Rectangle Square Triangle Hint 82). A surface mount resistor is also called ____? Chip resistor Metal resistor Planar resistor Composite resistor Hint 83). Which of the following are the parts of SMD resistor? Contacts Ceramic body Insulating coating All the above Hint 84). Which of the following are the insulating materials used for SMD resistors? Ceramic Alumina Steel Both a and b Hint 85). On which of the following parameters the resistance of resistor is calculated? Thickness Length Material All the above Hint 86). A SMD based resistors are fabricated using ____ substances? Metal film Metal oxide Non-metal oxide Both a and b Hint 87). Which of the following are the SMD resistors specifications to be considered while designing? Power ratings Temperature coefficient Tolerance All the above Hint 88). Which of the following is the power rating of 2512 SMD resistors package? 0.5 (1/2) W 0.25 (1/4) W 0.125 (1/8) W 0.05W Hint 89). Which of the following is the tolerance value of SMD resistors? 1% 2% 5% All the above Hint 90). A network resistors are available in ____ packages form? Dual inline Single inline Zero inline Both a and b Hint 91). Which of the following are the applications of network resistors? ADC DAC Pull-up devices All the above Hint 92). Which of the following are variable resistors? Potentiometer Rheostat Presets resistor All the above Hint Read more about Rheostat 93). A variable resistors assist in adjusting ____ parameters in an electronic circuit? Sensors sensitivity Voltage division Resistance Both a and b Hint 94). A resistors whose resistance is changed depending on input voltage is called ____ type of resistor? Constant Variable Static Both a and b Hint 95). A variable resistor has ____ characteristics? Non-ohmic Non-linear Input voltage dependent All the above Hint 96). A variable resistor differ from which of the following resistor types? Rheostats Potentiometers Thermo resistor Both a and b Hint 97). A varistor acts like ___ diode? Zener PN LED Photo diode Hint Read more about Zener diode 98). A varistor has __ number of semiconductor elements? 1 2 3 4 Hint 99). Which of the following is the purpose of magneto resistor? Measure presence of magnet Measure direction Measure strength of magnetic field All the above Hint 100). Which of the following are film based resistors? Carbon resistor Metal resistor Metal oxide resistor All the above Hint Please fill in the comment box below. Time is Up! Time's up
