PCB Design Question & Answers September 19, 2022 By WatElectronics This article lists 100 PCB Design MCQs for engineering students. All the PCB Design 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 PCB Design. A printed Circuit Board (PCB) is the essential block of electronic devices because the modern world is drenched in electronics. It may be a smartphone or a smart TV or any device that is capable of monitoring and streaming each of them has a PCB board in it. For any device, PCB is the heart of it. As the years are passing, the demand for PCB is increasing. An increase in demand has paved the way for the manufacturing of various PCBs. It can bring life to the electronic circuit physically. The process of designing a PCB is the combination of placing components along with proper routing to ensure electrical connection. A firm structure containing an electrical circuit made of metal surface known as traces and metals having large areas known as planes are embedded in it. On board, the components placed are soldered onto the pads made of metals. These pads are connected to the circuit board. In this way, components get interconnected. Board design can either consist of single, double, or maybe multiple layers. Dielectric core forms of material that have poor properties of electrical conduction are used to build the boards. This ensures pure circuit transmission and interspacing are provided with additional layers of dielectric and metals as per necessity. 1). Metal surfaces of smaller areas embedded in PCB’s are ________? Traces Planes Targets Regions Hint 2). What is a firm structure with targets and planes embedded in it known as? Electrical Device Machine System PCB Hint Read More about PCB Design 3). Metals of large areas embedded in PCB are known as ______? Traces Planes Targets Regions Hint 4). Where the components placed on the board are soldered? Traces Planes Metal Pads Regions Hint 5). What allows the components on board to form interconnections? Traces Planes Metal Pads Regions Hint 6). How many layers does a PCB have? Single Double Multiple All Mentioned Above Hint 7). Dielectric core used in PCB design have _________ electrical conduction? Poor High Severe Highest Hint 8). What ensures pure transmission in PCB design? Traces Planes Metal Pads Dielectric Core Hint 9). Dielectric material utilized in the PCBs is _________? Resistant Pads Metal Traces Flame Resistant Hint 10). Flame-resistant in PCB design consists of _______? Epoxy Resin Woven Fiberglass Cloth Resistant a & b Hint 11). Traces and planes utilized in PCB designing comprises of _________? Lead Copper Silver Titanium Hint 12). What are the various classes of PCB? Class 1 Class 2 Class 3 All Mentioned Above Hint 13). What does a class of PCB determine? Reliability of Design Quality of Design Quantity of Design a & b Hint 14). Which board is designated for consumer electronics? Class 1 Class 2 Class 3 Class 4 Hint 15). Where does a class 2 PCB is used? High Reliability Concerned Failure Minimized Consumer Electronics a & b Hint 16). What class PCBs are used in minimizing failures? Class 1 Class 2 Class 3 Class 4 Hint 17). Which class PCB has the most exact standard of manufacturing? Class 1 Class 2 Class 3 Class 4 Hint 18). What are the general categories of PCBs? Rigid Flex Metal-core All Mentioned Above Hint 19). What category of PCBs are available in vast majorities? Rigid Flex Metal-core All Mentioned Above Hint 20). How does the rigid PCB substrate is created? High Heat Pressure Lamination Low Heat a & b Hint 21). FR-4 is commonly used in _________? Rigid Flex Metal-core All Mentioned Above Hint 22). Greater deflection is offered by ________ boards? Rigid Flex Metal-core All Mentioned Above Hint 23). Flexible boards have _____ thickness compared to standard boards? Less More Severe Moderate Hint 24). Which boards have the increase in the ability of heat dissipation? Rigid Flex Metal-core All Mentioned Above Hint 25). Metal-core PCBs are used in ________? High Current Designs Low Current Designs High Voltage Designs Low Voltage Designs Hint PCB Design MCQs for Quiz 26). How a PCB board can be designed initially? Using a Hardware Using CAD Tools Using Electronic Devices Using Equipment’s Hint 27). What are the categories involved in designing a PCB? Schematic Capture PCB Layout Equipment’s a & b Hint 28). What describes the circuit connections in the diagram of PCB design? Schematic Capture PCB Layout Equipment’s a & b Hint 29). What is the final category in building a PCB? Schematic Capture PCB Layout Equipment’s a & b Hint 30). What is included in library CAD parts in PCB design? Schematic Symbols Simulation Models PCB Layout Footprints All Mentioned Above Hint 31). Three-dimensional PCB display step models are present in __________? Library of CAD Parts Layout Hardware Routing Hint 32). What is the further step in PCB design after the libraries get ready? Logical Presentation Layout Hardware Routing Hint 33). What is used in placing symbols on a sheet of the schematic in PCB design? CAD Tools Layout Hardware Routing Hint 34). What verifies whether the circuit connections work properly? Logical Presentation Layout Simulation Routing Hint 35). What connects pins of components in PCB? Traces Planes Nets Points Hint 36). What happens in the Layout of PCB? Schematic Received Components are Organized Nets are Connected All Mentioned Above Hint 37). What governs the space and widths require in completing a design? CAD Tools Layout Hardware Routing Hint 38). _____________ is the other phase in process of designing a board where the bill of materials from schematics is verified? CAD Tools Pre-Layout Hardware Routing Hint 39). Validation in pre-layout of PCB design involves verification of ___________? Manufacturer Part Numbers Vendor Part Numbers Virtual Private Network a & b Hint 40). What prevents traces from connecting one of the nets to another? CAD Tools Layout Hardware Routing Hint 41). What are the steps involved in PCB Layout? Setting Board Parameters Determining Outline Routing Components All Mentioned Above Hint 42). Logic symbols for implementation of various parts are created in ___________? Schematic Symbols Simulation Models PCB Layout Footprints All Mentioned Above Hint 43). During _________ parts of the process are moved in PCB design? Schematic Symbols Simulation Models PCB Layout Footprints Schematic Capture Hint 44). What is the further step in PCB design after the schematic? Schematic Symbols Simulation Models PCB Layout Footprints CAD Tool Setup Hint 45). What is the Integrated Circuit Emphasis Tool used in PCB Design? SPICE MATLAB Linux DOS Hint 46). What is the common variety of PCBs available? Single-sided Double-sided Multilayer Rigid Hint 47). Which type of PCB has a single layer of conduction? Single-sided Double-sided Multilayer Rigid Hint 48). How many conducting layers are present in Single-sided PCB? One Two Three Four Hint 49). Why do single-sided PCBs accommodate or require more space? One Conduction Layer Two Conduction Layers Multiple Conduction Layers None Hint 50). __________ are used for Low-density Design requirements? Single-sided Double-sided Multilayer Rigid Hint PCB Design MCQs for Exams 51). What are the various applications of Single-sided PCBs? Calculators LED Lighting Boards FM Radios All Mentioned Above Hint 52). Which of the PCB s are easier to repair? Single-sided Double-sided Multilayer Rigid Hint 53). What are the advantages of Single-side PCBs? Cost-Effective Hard to Manufacture Hard to Repair Difficult to Design Hint 54). Conducting layer added on bottom and top of board in __________ PCBs. Single-sided Double-sided Multilayer Rigid Hint 55). What connects the metallic parts on the Double-sided board of PCBs? Traces Planes Regions Holes Hint 56). What are the various methods of mounting used in connecting PCBs? Surface Mount Technology Through-hole Technology a & b None Hint 57). Which technology makes the components to be inserted on board with Pre-drilled holes? Surface Mount Technology Through-hole Technology a & b None Hint 58). Which technology ensures the placement of components precisely on the board's surface? Surface Mount Technology Through-hole Technology a & b SPICE Hint 59). UPS systems contain _________ PCBs? Single-sided Double-sided Multilayer Rigid Hint 60). What are the various applications involving Double-sided PCBs? Cell Phone Systems Power Monitoring Amplifiers All Mentioned Above Hint 61). What are the various advantages of double-sided PCBs? Reduced Size More Flexible Compact Circuit All Mentioned Above Hint 62). How many layers of copper does a Multilayer PCB have? Zero One Two More Than Two Hint 63). Complex devices and circuits make use of _________ PCBs? Single-sided Double-sided Multilayer Rigid Hint 64). GPS Trackers uses ______ boards? Single-sided Double-sided Multilayer Rigid Hint 65). What are the various applications of multilayer PCBs? Medical Equipment’s GPS Trackers Laptops All Mentioned Above Hint 66). _________ is not the application of Multilayer PCB? Amplifiers Medical Equipment’s Laptops GPS Trackers Hint 67). Which PCBs have higher levels of flexibility in terms of design? Single-sided Double-sided Multilayer Rigid Hint 68). What are the various advantages of Multilayer PCBs? Compact Size Used in High-Speed Circuits Design Flexibility is High All Mentioned Above Hint 69). What are the various layers composed in Rigid PCBs? Substrate Layer Copper Layer Solder Mask Layer All Mentioned Above Hint 70). MRI systems uses __________ PCBs? Rigid Flex Rigid-flex Robust Hint 71). What PCBs can absorb vibrations? Rigid Flex Rigid-flex Robust Hint 72). What are the various advantages of Rigid PCBs? Ease of Diagnostics Ease of Repair Low Electric Noise All Mentioned Above Hint 73). Flexible PCBs are made of _______________? Polyamide Transparent Conductive Polyester Film Polyethene a & b Hint 74). __________ are used in the fabrication of OLEDs. Rigid Flex Rigid-flex Robust Hint 75). Connectors are eliminated from _________ PCBs? Rigid Flex Rigid-flex Robust Hint PCB Design MCQs for Students 76). __________ PCBs increase the repeatability and reliability? Rigid Flex Rigid-flex Robust Hint 77). Flex PCBs provide uniform Electrical characteristics in ___________? Low-speed Circuitry High-speed Circuitry Low-Density Circuitry Low Temperature Circuitry Hint 78). Hybrid circuit combining rigid and flex boards known as _____? Rigid Flex Rigid-flex Robust Hint 79). What is the purpose of the flexible part on Rigid-flex PCB? Interconnections among Rigid Boards Allows Narrow Conductor Lines Allows Wide Conductors Lines a & b Hint 80). What PCB designs are complicated and constructed in three-dimension? Rigid Flex Rigid-flex Robust Hint 81). Interconnections makes ________ boards light-weight? Rigid Flex Rigid-flex Robust Hint 82). What are the various advantages of Rigid-flex PCBs? Reduce Space Requirement Shock Resistance Light-weight All Mentioned Above Hint 83). What maximizes the effectiveness of testing a PCB? Board Side Minimum Test Point Distance Test Point Distribution Tolerances Hint 84). Test points must be present on ______ side of the board that facilitates testing? Same Distinct Different Multiple Hint 85). What defines the structure of a Multilayer circuit PCB? Stack-up Structure Impedances Signal Quality Hint 86). Precisely stacked PCBs reduce _____________? Electromagnetic Emissions Crosstalk Signal Integrity a & b Hint 87). What improves the integrity of signals of Multilayer circuit PCB? Stack-up Structure Impedances Crosstalk Hint 88). What impacts the multiple layers on board during PCB design? Number of Differential Pairs Routing Density Controlled Impedances Requirements All Mentioned Above Hint 89). PCB material must have ________? Slow Rise Time Fast Rise Time Fast Fall Time Slow Cut-off Hint 90). Properly placed components on board during design give rise to ___________? Better Performance Improved Signal Quality Increased Crosstalk a & b Hint 91). What rules must be followed while routing begins? Design Rules Impedance Rules a & b Density Rules Hint 92). What is calculated based on various circuits' current necessities? Impedances Number of Layers Trace Width Plane Width Hint 93). Traces of copper layered among the nodes in _______? Schematic Check Stack-up Routing Fabrication Hint 94). What are the connections provided after routing? Microcontrollers Power Plane Ground Plane b & c Hint 95). What are the benefits of a well-fabricated PCB design? Time Saved Reduced Costs Hassle-free All Mentioned Above Hint 96). What are the details required for the fabrication of the board? Board Dimensions and Outline Drilling Chart Stack-up Drawing All Mentioned Above Hint 97). What does Assembly Drawing in PCB design consist of? Component Outlines Additional Side Views Assembly Notes All Mentioned Above Hint 98). Information about Manufacturing labels is present in ___________? Assembly Drawing Stack Drawing Fabrication Drawing Component Drawing Hint 99). What is DFM in PCB design? Description of Masses Design for Manufacturability Description of Manufacturing Details of Masses Hint 100). Why the color of PCB is green? Due to Components Used Due to Solder Masks Due to Fabrication Due to Assembly Hint Please fill in the comment box below. Time is Up! Time's up
