Ohmmeter Question & AnswersMay 2, 2023 By Wat Electrical This article lists 100 Ohmmeter MCQs for engineering students. All the Ohmmeter Questions & Answers below include a hint and a link to the relevant topic wherever possible. 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 Ohmmeter.Electronic devices can be tested using the availability of various meters. For example, Ammeters measure currents, Voltmeters for voltage measurement and to measure resistance the meter used is called an Ohmmeter. These meters test the wired connection whether it is appropriate or should improve. Electrical resistances are calculated to identify the restriction of objects to flowing current in it. Based on levels of sensitivity various meters are available. They are milli, mega & micro-ohmmeters. Low resistance values are calculated using a micro-ohmmeter. For contact bonding applications these meters are used. High resistance values can be calculated using mega ohmmeters.Ohmmeters can be used conveniently but the accuracy is less. Due to its portable nature, these are used in laboratories and are classified into three categories. They are series, shunt & multi-range ohmmeters. The classification is based on how the circuit or the resistances are connected to the circuit.Both resistance & component connections in any electrical circuitry can be measured using these ohmmeters. The resistance is measured in 'ohms. Debugging of PCBs that require to get executed in any sensitive devices can be achieved using ohmmeters. 1). Electrical resistance is measured using ______________? Ammeter Voltmeter Ohmmeter Wattmeter None Hint2). How can multi-meters function for resistances measuring mode? Ammeter Voltmeter Ohmmeter Wattmeter None Hint3). What is applied by the ohmmeter for measuring resistance? Voltage Current Pressure Temperature None Hint4). Which law is applied to calculate resistances? Faradays Law Kirchoff’s Law Boyles Law Ohms Law None Hint5). What measures lower resistance values? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint6). What is the purpose of an Ohmmeter? To Measure Resistance To Check Continuity To Measure Current a & b None Hint7). Multi-meters in resistance-measurement mode function as _________? Ammeter Voltmeter Ohmmeter Wattmeter None Hint8). Where does the ohmmeter connect? Current Carrying Component Voltage Carrying Component Power Source Except Power Source None Hint9). What should be disconnected before Ohmmeter is connected? Current Carrying Component Voltage Carrying Component Power Source Except Power Source None Hint10). What gives resistance values approximately? Ammeter Voltmeter Ohmmeter Wattmeter None HintRead More about Ohmmeter 11). How does the ohmmeter can be connected to the circuit? Series Parallel Either a or b None None Hint12). What is the classification of ohmmeter based on resistance values? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter b & c None Hint13). Which type of ohmmeter comprises multiple selectors? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Milli Ohmmeter None Hint14). Ohmmeters should not be in connection with _________? Current Source Voltage Source Temperature Source Light Source None Hint15). What is measured due to voltage drops across conductor terminals in Ohmmeter? Current Voltage Capacitance Resistance None Hint16). What does the left-hand kept far side of analog meters indicate? Zero Resistance Minimum Resistance Infinite Resistance Can’t Detect Resistance None Hint17). What does it indicate if the needle is resting on an infinite value of resistance? No Circuit Continuity Open Point in Circuit Short Point in Circuit a & b None Hint18). What cannot detect the resistances for test circuits? Ammeter Voltmeter Ohmmeter Wattmeter None Hint19). What does an ohmmeter comprise? Milliammeter Series Resistance Constant Battery Source All Mentioned Above None Hint20). When does the pointer deflect in Ohmmeters? Current Flow Voltage Flow Current Constant Voltage Constant None Hint21). What represents if the pointer moves left-side to the meter? Zero Resistance Low Resistance High Resistance Minimum Resistance None Hint22). What is the pointer in meter moves right-side? Zero Resistance Low Resistance High Resistance Minimum Resistance None Hint23). What does the ohmmeter circuit consist of? Milli Ammeter Resistance Battery Source All Mentioned Above None Hint24). What are connected in series in the ohmmeter circuit? Capacitor Resistor Inductor Diode None Hint25). Battery source in ohmmeter is _________? Fluctuating Not Constant Constant Changes Frequently None HintOhmmeter MCQs for Exams26). Electrical quantities values measured by ohmmeter are shown in _________? Pointer Display Multimeter Dial Microammeter None Hint27). What indicates the measured value on the scale in ohmmeter? Pointer Display Multimeter Dial Microammeter None Hint28). On what values pointer deflect in the ohmmeter? Capacitor Resistor Inductor Diode None Hint29). What selects distinct functions in the ohmmeter? Pointer Display Multimeter Dial Range Selector Knob None Hint30). Where does the knob for selection present in the ohmmeter? Right Side Left Side Center Downside None Hint31). What has an impact if the current in the microammeter change in the ohmmeter? Capacitor Resistor Inductor Diode None Hint32). To what does the rotary dial surround? Pointer Display Multimeter Dial Range Selector Knob None Hint33). What have different selectors for range? Pointer Display Multimeter Dial Range Selector Knob None Hint34). How many input ports or jacks does an ohmmeter have? Four Three Two One None Hint35). How many leads does an ohmmeter have? Four Three Two One None Hint36). Non-linear resistance measurement scale is in _______? Voltmeter Ohmmeter Analog Multimeter b & c None Hint37). Where does the resistance measurement device pointer lie at rest? Maximum Minimum Zero Low Level None Hint38). Where does the meter reading must lie before testing components in the ohmmeter? Maximum Minimum Zero Low Level None Hint39). What happens if the probe of the meter is connected to the sides of the resistor? Pointer Remain at 0 Pointer is Constant Pointer Does not Move Pointer Deflects None Hint40). What is the range of resistance meters? 1 Ohm – 1 K Ohms 1 Ohm- 1 M Ohms 1 K Ohms- 1 M Ohms 1 M Ohms- 1 G Ohms None Hint41). Which ohmmeter is used for low resistance measurement? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint42). 1 micro-ohm to 2500 ohms is the range of _________? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint43). Why 4-wire kelvin method used in Micro ohmmeters? To Measure Capacitance To Measure Resistance To Measure Inductance To Measure Resistance & Capacitance None Hint44). What uses filters? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint45). 100 micro-ohms to 2000 ohms is the range of ___________? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Milli Ohmmeter None Hint46). What is the limit of resistance values measured by mega-ohmmeter? Ohms Mega Ohms Giga Ohms b & c None Hint47). What measures the values of resistances for DUT (device under test)? Mini Ohmmeter Series Ohmmeter Micro Ohmmeter Shunt Ohmmeter None Hint48). How many resistors are used in Series Ohmmeter? Four Three Two One None Hint49). How are zero resistors of adjustment placed with ‘D Arsonval’ in series ohmmeters? Parallel Series Combination None None Hint50). What does an Ohmmeter of higher range know as? Multi-meter Megger Circuit Breaker Switch None HintOhmmeter MCQs for Students51). Why does the Megger use? To Measure Resistance To Check Continuity To Measure Insulation Resistance All Mentioned Above None Hint52). 0.5 Ohms to 2,000,000 Mega Ohms is the range of _________? Milli Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint53). What applies high voltage to measure current values? Multi-meter Megger Circuit Breaker Switch None Hint54). What does megger comprise? DC Generator Shunt Type Ohmmeter Series Type Ohmmeter a & c None Hint55). What increases the sensitivity of resistances measuring mechanisms called Megger? DC Generator Shunt Type Ohmmeter Series Type Ohmmeter a & c None Hint56). What is the principle of Mega ohmmeter? Magnetic Induction Self-induction Precipitation Electromagnetic Induction None Hint57). What is the megger’s voltage operational range? 0-50 V 25 – 50 V 50-100 V 50V-100MV None Hint58). Meggers is ________ to operate? Simple Complex Difficult Hard None Hint59). How meggers are advantageous? Simple to Operate Small DC Generator Less Cost All Mentioned Above None Hint60). What identifies physical damage in electric circuits? Multi-meter Megger Circuit Breaker Switch None Hint61). When an inductor is connected to an ohmmeter and the reading displayed is 0 indicate? Inductor is Open Circuited Inductor is Short Circuited Inductor is Not Connected Inductor is Open None Hint62). What is indicated if the device or element connected to the ohmmeter is open-circuited? Zero Resistance Infinite Resistance No Resistance Equal resistance None Hint63). Multimeters unable to measure ________? Voltage Current Resistance Inductance None Hint64). Moving coil is used to make _______? Ammeter Voltmeter Ohmmeter Wattmeter None Hint65). Which has an internal source of power? Ammeter Voltmeter Ohmmeter All Mentioned Above None Hint66). High Voltage-based meggers are ______? Power Operated Motor Operated Current Operated a & b None Hint67). What are the various applications where meggers are used? Electrical Cables Transformers Multimeters All Mentioned Above None Hint68). What does a multimeter combine? Ammeter Voltmeter Ohmmeter All Mentioned Above None Hint69). Circuit breakers use _________? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint70). What measures the resistances of the motor? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint71). PCB tracks use ______? Milli Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint72). What is used in capacitor testing? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint73). What measures the resistance among leads? Ammeter Voltmeter Ohmmeter Wattmeter None Hint74). Diode testing is possible by ________? Milli Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint75). Machine field coil use ______? Series Ohmmeter Mega Ohmmeter Micro Ohmmeter Shunt Ohmmeter None HintOhmmeter MCQs for Interviews76). What does a digital ohmmeter measure? Voltage Current Resistance All Mentioned Above None Hint77). Heater elements use _________? Series Ohmmeter Mega Ohmmeter Micro Ohmmeter Shunt Ohmmeter None Hint78). Short circuit tests are carried out using ______? Series Ohmmeter Mega Ohmmeter Micro Ohmmeter Shunt Ohmmeter None Hint79). Precision bridge circuitry use __________? Series Ohmmeter Mega Ohmmeter Micro Ohmmeter Shunt Ohmmeter None Hint80). What is used in the installation of windings? Multi-meter Megger Circuit Breaker Switch None Hint81). How the unknown resistances are connected to Multi-range ohmmeter? Series Parallel Either a or b None None Hint82). What is used as an Earth tester? Multi-meter Megger Circuit Breaker Switch None Hint83). What takes more time to measure resistance? Multi-meter Megger Circuit Breaker Switch None Hint84). Meter movement is parallel to resistances found in ____________? Mini Ohmmeter Series Ohmmeter Micro Ohmmeter Shunt Ohmmeter None Hint85). Shunt Ohmmeter measures _________ resistances? High Low Medium Zero None Hint86). What is referred to as Insulation Tester? Multi-meter Megger Circuit Breaker Switch None Hint87). Damage in circuits can be identified using __________? Multi-meter Megger Circuit Breaker Switch None Hint88). Generators winding resistances are measured using ________? Milli Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint89). What calculates the low value of resistances with higher precision? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Milli Ohmmeter None Hint90). Where is Megger used? Cables Insulators Bushings All Mentioned Above None Hint91). Which circuit is used in ohmmeters for precise measurement? Resistance Filter Capacitor Bridge None Hint92). What is the purpose of Micro ohmmeters? Calculate Current Calculate Voltage Diode Testing All Mentioned Above None Hint93). What ensures the continuity in circuits? Ammeter Voltmeter Ohmmeter Wattmeter None Hint94). Which measuring device is not accurate? Ammeter Voltmeter Ohmmeter Wattmeter None Hint95). Which ohmmeter is used in the application of bonding contacts? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Major Ohmmeter None Hint96). Electric motor winding resistances are measured using ________? Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Milli Ohmmeter None Hint97). Digital ohmmeter is the __________? Digital Multi-meter Analog Voltmeter Analog Ohmmeter None Hint98). What is suitable for insulation resistance measurement? Milli Ohmmeter Mega Ohmmeter Micro Ohmmeter None Hint99). Bond testing in railways is done by ___________? Milli Ohmmeter Mega Ohmmeter Micro Ohmmeter Milli Ohmmeter None Hint100). What measures the insulation resistances of cables? Multi-meter Megger Circuit Breaker Switch None HintFor More MCQsAmmeter Question & AnswersEnergy Meter Question & AnswersQ Meter Question & AnswersTachometer Questions & AnswersAnemometer Questions & Answers Mini Ohmmeter Mega Ohmmeter Micro Ohmmeter Milli Ohmmeter None Hint Time's up
