Bridge Rectifier Question & Answers July 26, 2021 By WatElectronics This article lists 100 Bridge Rectifier MCQs for engineering students. All the Bridge Rectifier Questions & Answers given below includes solution and link wherever possible to the relevant topic. The bridge rectifier is a type of full-wave rectifier, which rectifies the complete waveform. It consists of three important components they are a transformer, four diodes, and load resistance. The diodes in the rectifier are connected in the form of a bridge and the main function of this is to convert AC to DC. The bridge rectifier consists of four diodes, and its maximum rectification efficiency is 81.2%, and its ripple factor is 48%. The transformer utilization factor of this rectifier is 0.812 and the output frequency is equal to 2f. It is an AC to DC converter and its form factor value is 1.11. In a bridge rectifier, the transformer is not required. The standard form of DBR is Diode Bridge Rectifier. The bridge rectifiers are categorized into three types they are uncontrolled, fully controlled, and half controlled bridge rectifiers. This rectifier consists of diodes, transformer, regulators, and filtering devices. When source voltage is negative in bridge rectifier then d1 and d2 diodes blocks whereas the diode d3 and d4 conduct similarly when the source voltage is positive in bridge rectifier d1 and d2 diodes conduct whereas diode d3 and d4 block. These rectifiers are more efficient, it has less ripple factor value, the circuit complexity is more, the voltage regulations are good, and the voltage across the diode is high. 1). The maximum rectification efficiency of bridge rectifier is _____________ 81.2% 0.2% 8.2% 1.2% Hint 2). In which rectifier the transformer core saturation is possible? Half-wave Full-wave Bridge All of the above Hint 3). The ripple frequency of the bridge rectifier is around ___________ 100Hz 300Hz 400Hz 500Hz Hint 4). How many diodes does the bridge rectifier consist? One Two Three Four Hint 5). How many diodes does the full-wave rectifier consist of? One Two Three Four Hint 6). In which rectifier the center tap transformer is required? Half-wave Full-wave Bridge All of the above Hint 7). How many diodes does the half-wave rectifier consist of? One Two Three Four Hint 8). The ripple frequency of full-wave rectifier is around ___________ 100Hz 300Hz 400Hz 500Hz Hint 9). The ripple factor of bridge rectifier is __________ 20% 48% 80% 90% Hint 10). The TUF of bridge rectifier is _____________ 0.812 0.81 0.12 8.12 Hint 11). The TUF of the center-tapped full wave rectifier is _____________ 0.812 0.693 0.12 812 Hint 12). How many diodes does the center-tapped full wave rectifier consist of? One Two Three Four Hint 13). The maximum efficiency of the center-tapped full wave rectifier is _________ 20% 81.2% 80% 90% Hint 14). The output frequency of bridge rectifier is ________ f 2f 4f 8f Hint 15). The TUF of half-wave rectifier is _____________ 0..812 0.287 0.12 8.12 Hint 16). The maximum rectification efficiency of full-wave rectifier is _____________ 81.2% 0.2% 8.2% 1.2% Hint 17). The output frequency of the half-wave rectifier is ________ 10Hz 20Hz 40Hz 50Hz Hint 18). The output frequency of the full-wave rectifier is ________ f 2f 4f 8f Hint 19). The form factor value of the full-wave rectifier is ____________ 1.11 2.99 6.7 3.88 Hint 20). The ripple frequency of the half wave-rectifier is around ___________ 100Hz 300Hz 400Hz 50Hz Hint 21). The maximum rectification efficiency of the half-wave rectifier is _____________ 81.2% 40% 8.2% 1.2% Hint 22). The ripple factor of the full-wave rectifier is __________ 20% 48% 80% 90% Hint Read more about Full Wave Rectifier 23). The form factor value of the bridge rectifier is ____________ 1.11 2.99 6.7 3.88 Hint 24). The peak factor value of the half-wave rectifier is _________ 2 4 8 16 Hint 25). In which rectifier the center tap transformer is used? Half-wave Full-wave Bridge All of the above Hint Bridge Rectifier MCQ's with Answers 26). The ripple factor of the half-wave rectifier is __________ 20% 48% 80% 100% Hint 27). The form factor value of the half-wave rectifier is ____________ 1.11 2.99 1.57 3.88 Hint 28). The peak factor value of the half-wave rectifier is _________ 2 √2 8 16 Hint 29). The bridge rectifier is a ______________ converter AC to DC Dc to AC Both a and b None of the above Hint 30). In which rectifier the transformer is not required? Half-wave Full-wave Bridge All of the above Hint 31). What is the standard form of DBR? Diode Bridge Rectifier Dual Bridge Rectifier Double Bridge Rectifier None of the above Hint 32). The ratio of the period of the input supply voltage by a period of the minimum order harmonics in the output voltage/current is known as _________ Pulse number of a rectifier Pulse number of a rectifier None of the above Hint 33). The ratio of actual power input to the rectifier divided by apparent power input to the rectifier is known as _________ Pulse number of a rectifier Power factor of a rectifier Hint 34). The three-phase rectifiers are categorized into __________ One Two Three Four Hint 35). The peak factor value of full-wave rectifier is _________ 2 √2 8 16 Hint 36). The bridge rectifiers are categorized into __________ One Two Three Four Hint 37). The bridge rectifier consists of __________ devices Diode bridge Transformer, regulators Filtering All of the above Hint 38). How many diodes do single-phase bridge rectifiers consist? One Two Three Four Hint 39). How many diodes do three-phase bridge rectifier uses? One Two Three Six Hint 40). Which one of the following rectifiers has only thyristors? Controlled Uncontrolled Half controlled None of the above Hint 41). Which one of the following rectifiers has only thyristor and diodes? Controlled Uncontrolled Half controlled None of the above Hint 42). The single-phase full-wave uncontrolled rectifier is categorized into _________ One Two Three Four Hint 43). Which one of the following is a three-phase full-wave uncontrolled rectifier? 3-ϕ half-wave 3-ϕ mid-point 6 pulse 3-ϕ bridge and 3-ϕ 12 pulse All of the above Hint 44).The power factor value of 1- ϕ full-wave rectifier center tapped is ___________ One Two Three Four Hint 45). Which one of the following rectifiers has only diodes? Controlled Uncontrolled Half controlled None of the above Hint 46). What are the advantages of a 3-ϕ uncontrolled rectifier? High-efficiency Lower amplitude ripples Higher frequency All of the above Hint 47). The ripple factor value of a 3-ϕ half-wave rectifier is ___________ 1.2 0.177 7.8 9.0 Hint 48). The form factor value of 3-ϕ half-wave rectifier is ____________ 1.2 0.177 7.8 1.732 Hint 49). The VRF value of 3- ϕ mid-point 6 pulse rectifier is _______ 1% 2% 4.3% 8% Hint 50). The form factor value of 3-ϕ mid-point 6 pulse rectifier is ____________ 1.009 0.177 7.8 1.732 Hint Bridge Rectifier MCQ's for Interviews 51). The rectifier efficiency of 3-ϕ mid point 6 pulse rectifier is __________ 1% 2% 4.3% 99.82% Hint 52). The ripple factor value of 3-ϕ bridge rectifier is ___________ 1.2 0.404 7.8 9.0 Hint 53). The rectifier efficiency of 3-ϕ bridge rectifier is __________ 1% 2% 4.3% 99.82% Hint 54). The TUF value of 3-ϕ bridge rectifier is _________ 0.1 8.9 4.3 0.9541 Hint 55). The ripple frequency of 3-ϕ bridge rectifier is ___________ 360 degrees 180 degrees 120 degrees 90 degrees Hint 56). The ratio of peak value divided by RMS value is known as ________ Peak factor Form factor TUF None of the above Hint 57). The ratio of ripple voltage divided by pure DC voltage is known as _________ Peak factor Form factor TUF Ripple factor Hint 58). The ratio of DC output power divided by AC input power is known as _________ Peak factor Form factor Rectifier efficiency Ripple factor Hint 59). The ratio of DC power delivered to load divided by the AC rating of the transformer is known as ____________ Peak factor Form factor TUF Ripple factor Hint 60). The ratio of RMS value of current divided by DC output current is known as _______ Peak factor Form factor TUF Ripple factor Hint 61). The maximum value of alternating quantity divided by RMS value of an alternating quantity is known as ________ Peak factor Form factor TUF Ripple factor Hint 62). The transformer utilization factor is low in ______ rectifier Half-wave Full-wave Bridge None of the above Hint 63). In which one of the following rectifiers the efficiency is low? Half-wave Full-wave Bridge None of the above Hint 64). In which one of the following rectifier designs is easy? Half-wave Full-wave Bridge None of the above Hint 65). The transformer can saturate in ____________ rectifier Half-wave Full-wave Bridge None of the above Hint 66). The PIV of the diode is low in _______ rectifier Half-wave Bridge Both a and b None of the above Hint 67). The ripple factor is poor in ________ rectifier Half-wave Bridge Both a and b None of the above Hint 68). The ratio of peak value divided by RMS value is known as __________ factor TUF Crest Peak None of the above Hint 69). The voltage across the diode is high in ___________ rectifier Bridge Center tapped Both a and b None of the above Hint 70). In which of the following rectifier, the voltage regulations are good? Bridge Center tapped Both a and b None of the above Hint 71). In which of the following rectifier, the circuit complexity is more? Bridge Center tapped Both a and b None of the above Hint 72). The ratio of DC output power divided by an AC output power is known as _________ TUF Crest Peak Efficiency Hint 73). What is the standard form of SCR? Silicon Controlled Rectifier Silicon Uncontrolled Rectifier Simple Controlled Rectifier None of the above Hint 74). Which one of the following is an uncontrolled rectifier? Diodes Thyristors Both a and b None of the above Hint 75). Which one of the following is a controlled rectifier? Diodes Thyristors Both a and b None of the above Hint Bridge Rectifier MCQ's for Exams 76). What are the advantages of a bridge rectifier? More efficient Ripple factor value is less Both a and b None of the above Hint 77). Which one of the following is a bridge rectifier diode? 1N4007 1N5408 6A4 diodes All of the above Hint 78). The maximum recurrent peak reverse voltage value of the 6A4 bridge rectifier diode is _________ 100V 200V 300V 400V Hint 79). The maximum reverse voltage of the 6A4 bridge rectifier diode is _________ 100V 280V 300V 400V Hint 80). The maximum DC breaking voltage of the 6A4 bridge rectifier diode is _______ 100V 280V 300V 400V Hint 81). The maximum repetitive peak reverse voltage value of the 1N5048 bridge rectifier diode is ________ 1000V 280V 300V 400V Hint 82). The maximum average forward rectified current of 6A4 bridge rectifier diode is _______ 6A 28A 30A 40A Hint 83). The maximum RMS voltage of 1N5048 bridge rectifier diode is _________ 1000V 700V 300V 400V Hint 84). The maximum DC blocking voltage of 1N5048 bridge rectifier is _________ 1000V 700V 300V 400V Hint 85). The maximum average forward rectified current of 1N5048 bridge rectifier diode is _______ 3A 28A 30A 40A Hint 86). The operating junction and storage temperature range of 1N5048 bridge rectifier diode is ___________ )-5 to +150 deg centigrade -5 to -150 deg centigrade 5 to +150 deg centigrade None of the above Hint 87). During the positive half of the input cycle the diode d1 and d3 are _______ Forward bias Reverse bias D1 is forward and d3 is reverse bias None of the above Hint 88). During the positive half of the input cycle the diode d4 and d2 are _______ Forward bias Reverse bias D1 is forward and d3 is reverse bias None of the above Hint 89). During the negative half of the input cycle the diode d4 and d2 are _______ Forward bias Reverse bias D1 is forward and d3 is reverse bias None of the above Hint 90). During the negative half of the input cycle the diode d1 and d3 are _______ Forward bias Reverse bias D1 is forward and d3 is reverse bias None of the above Hint 91). The diodes in a rectifier aligned in a ________ configuration Circle Square Diamond None of the above Hint 92). In half-wave rectifier, for the half-cycle, the output voltage is ________ Zero One Infinity None of the above Hint Read more about Half Wave Rectifier 93). In the case of a half-wave rectifier, the efficiency is ________ 60.9% 0.9% 40.56% 80.9% Hint 94). The single-phase rectifiers has ____________ Low efficiency Low power delivery Less TUF All of the above Hint 95). The SCR or thyristor is a ________ layer semiconductor device Single Double Multi None of the above Hint 96). The single-phase rectifier used for ___________ Consumer electronic devices Household appliances Both a and b None of the above Hint 97). Which one of the following rectifiers is cheaper? Half-wave Full-wave Both a and b None of the above Hint 98). In _________ rectifier the output is discontinuous Half-wave Full-wave Both a and b None of the above Hint 99).When source voltage is positive in bridge rectifier then d1 and d2 diodes ________ Conduct Block D1 conduct and d2 block None of the above Hint 100). When source voltage is negative in bridge rectifier then d1 and d2 diodes ________ Conduct Block D1 conduct and d2 block None of the above Hint Read more about Bridge Rectifier Time is Up! Time's up
