CAD CAM and CIM MCQs 2026

APT language historically used for

1. Aonly web page design✓
2. BNC part programming with geometry and motion statements✓
3. Conly database SQL queries✓
4. Donly music synthesis✓

Tolerance stack-up analysis calculates

1. Acumulative effect of part tolerances on assembly fit✓
2. Bonly surface roughness Ra only✓
3. Conly motor RPM only✓
4. Donly room temperature only✓

Design for Manufacturability (DFM) aims to

1. Asimplify fabrication and assembly during design stage✓
2. Bmaximize machining setups deliberately✓
3. Cuse impossible tolerances always✓
4. Dignore material availability✓

PDM manages

1. Aonly motor oil viscosity in engines only✓
2. Bengineering documents and CAD file vault with version control✓
3. Conly river flow hydrology only✓
4. Donly textile dye colour only✓

PLM (Product Lifecycle Management) integrates

1. Aonly cafeteria menu planning✓
2. Bonly bus schedules✓
3. CCAD data, revisions, BOM and change control✓
4. Donly sports scores✓

SolidWorks, CATIA and Creo are primarily

1. Aonly PLC ladder editors only✓
2. Bonly payroll systems✓
3. Conly weather radars✓
4. Dparametric CAD modelers✓

Mastercam, Fusion 360 and SolidCAM are examples of

1. Aonly word processors✓
2. Bonly antivirus programs✓
3. Conly social media apps✓
4. DCAD/CAM software systems✓

Trochoidal milling toolpath is

1. Aonly straight plunge drill✓
2. Bonly single point turning✓
3. Ccurved high-efficiency path for slotting and roughing✓
4. Donly manual chisel✓

High-speed machining (HSM) uses

1. Aonly hand file at low speed✓
2. Bhigh spindle speed and feed with light depth of cut✓
3. Conly furnace annealing✓
4. Donly sand blasting✓

Toolpath simulation in CAM verifies

1. Acollisions, gouges and uncut material before machining✓
2. Bonly employee attendance✓
3. Conly tax returns✓
4. Donly musical rhythm✓

Slicing software for 3D printing converts

1. ASTL model to layer toolpaths✓
2. Bonly G-code to STL reverse always primary✓
3. Conly PDF invoices✓
4. Donly spring calculations✓

SLA 3D printing cures

1. Aclay air drying only✓
2. Bliquid photopolymer resin with UV light✓
3. Conly wood sawdust glue only✓
4. Donly steam condensation✓

FDM 3D printing extrudes

1. Ametal powder laser only always✓
2. Bonly concrete slurry always✓
3. Cthermoplastic filament layer by layer✓
4. Donly glass molten bath always✓

Rapid prototyping (additive manufacturing) builds part by

1. Aonly removing bulk from billet only subtractive✓
2. Bonly forging hammer only✓
3. Conly sand casting only✓
4. Dadding material layer by layer✓

FEA preprocessing from CAD includes

1. Aonly printing paper drawing✓
2. Bonly inventory EOQ calculation✓
3. Conly welding electrode selection retail✓
4. Dmeshing solid model with elements✓

NURBS curves are used in CAD because they

1. Aonly draw straight lines✓
2. Bonly encode text fonts without geometry✓
3. Cexactly represent conics and free-form shapes with local control✓
4. Donly measure hardness✓

IGES was early standard for

1. Aonly email protocol✓
2. BCAD data exchange between dissimilar systems✓
3. Conly hydraulic schematic only✓
4. Donly boiler code only✓

STEP (ISO 10303) file format supports

1. Aexact boundary representation solid model exchange✓
2. Bonly 2D bitmap images✓
3. Conly audio waveforms✓
4. Donly spreadsheet cells✓

STL file format represents geometry as

1. Atriangular mesh facets✓
2. Bparametric feature tree✓
3. Csolid NURBS only always✓
4. Dhandwritten G-code✓

Turning operation on CNC lathe removes material from

1. Astationary cube on milling table primarily✓
2. Bonly sheet metal blank flat only✓
3. Crotating workpiece using single-point tool✓
4. Donly sand mould cavity✓

5-axis machining allows

1. Aonly drilling along Z always✓
2. Bonly 2D lathe turning✓
3. Conly manual hacksaw✓
4. Dtool orientation adjustment while cutting complex surfaces✓

3-axis CNC milling moves

1. Afive axes simultaneously always standard on all machines✓
2. Bonly rotary spindle without linear✓
3. Conly one axis ever✓
4. Dtool in X Y Z while workpiece fixed or indexed✓

Finishing toolpath provides

1. Amaximum material removal rate only✓
2. Bonly drill centre marks only✓
3. Cfinal surface accuracy and smoothness✓
4. Donly saw kerf roughing✓

Roughing toolpath removes

1. Aonly final polish pass✓
2. Bbulk material quickly leaving stock for finishing✓
3. Conly engraving text only✓
4. Donly electrical wiring✓

Post-processor in CAM translates

1. Ageneric toolpath to machine-specific NC code✓
2. Bonly PDF to Word text✓
3. Conly steel to aluminium metallurgy✓
4. Donly voltage to pressure✓

GD&T in engineering drawings uses

1. Aonly nominal dimensions without tolerances✓
2. Bonly paint colour codes✓
3. Conly musical notation✓
4. Dfeature control frames for form, orientation and position tolerances✓

Work coordinate system (WCS) on CNC defines

1. Aonly machine manufacturer serial✓
2. Bprogram zero location on part or fixture✓
3. Conly coolant brand✓
4. Donly electric bill account✓

NC machining stands for

1. ANatural Convection only✓
2. BNumerical Control of machine tools by coded instructions✓
3. CNitrogen Cutting only✓
4. DNonlinear Control theory only✓

G00 command typically means

1. Alinear feed cut at set feedrate✓
2. Brapid traverse positioning✓
3. Cprogram end only✓
4. Dspindle stop only✓

Model-Based Definition (MBD) embeds

1. Aonly handwritten sticky notes✓
2. BGD&T and annotations in 3D model rather than 2D drawing only✓
3. Conly verbal instructions only✓
4. Donly paint colour on wall✓

FEA modal analysis finds

1. Anatural frequencies and mode shapes✓
2. Bonly steady-state heat flux only✓
3. Conly inventory levels✓
4. Donly tool wear VB only✓

Kinematic simulation in CAD assembly checks

1. Amotion interference and range of travel✓
2. Bonly chemical corrosion rate✓
3. Conly electrical resistivity only✓
4. Donly paint drying time only✓

Bill of materials extracted from CAD links

1. Aonly toolpath feedrates✓
2. Bmodel structure to parts list for procurement✓
3. Conly spindle RPM only✓
4. Donly coolant pH✓

Isometric drawing shows

1. Atrue orthographic projection without distortion✓
2. Bonly top view duplicated✓
3. Cthree faces of object with parallel axes 120° apart✓
4. Donly hidden line removed by standard mandate✓

Section view in drawing shows

1. Aonly external outline always✓
2. Bonly bill of quantities✓
3. Conly welding rod diameter retail only✓
4. Dinternal features by imagined cutting plane✓

Surface finish symbol Ra indicates

1. Ahardness HRC✓
2. Btensile strength MPa✓
3. Celectrical resistance ohm✓
4. Darithmetic average roughness✓

CL data in CAM is

1. Acutter location file of tool centre path✓
2. Bcustomer ledger file✓
3. Ccompressed air log✓
4. Dchemical lab report✓

Datum reference frame in GD&T establishes

1. Aonly decorative border on sheet✓
2. Bonly title block font size✓
3. Ccoordinate system for measurements✓
4. Donly paper weight gsm✓

Third-angle projection is standard in

1. Aonly Japan exclusively always✓
2. Bno engineering field✓
3. Conly woodworking hand tools✓
4. DUnited States and Canada commonly✓

Interference fit requires

1. Aloose sliding always✓
2. Bzero elastic deformation always✓
3. Cassembly force or thermal expansion for mating✓
4. Donly adhesive without dimensional control✓

Clearance fit means

1. Ainterference always✓
2. Bhole always larger than shaft for free movement✓
3. Cexact zero gap always✓
4. Donly press fit always✓

CMM (Coordinate Measuring Machine) verifies

1. Aonly chemical composition only✓
2. Bonly motor horsepower only✓
3. Conly air humidity only✓
4. Dpart dimensions against CAD drawing✓

Reverse engineering from point cloud uses

1. Aonly destruction of part without measurement✓
2. Bonly guesswork without data✓
3. Cscanned data to reconstruct CAD surfaces✓
4. Donly boiler code formulas✓

G01 command means

1. Arapid traverse✓
2. Bcircular arc CW only✓
3. Clinear interpolation feed move✓
4. Dtool change only✓

G02 and G03 commands are

1. Aonly dwell pause✓
2. Bonly coolant on✓
3. Conly home all axes✓
4. Dcircular interpolation clockwise and counterclockwise✓

M03 command on CNC mill usually

1. Astops program✓
2. Bopens door lock✓
3. Czeros work offset only✓
4. Dstarts spindle clockwise rotation✓

Tool offset in CNC compensates for

1. Aonly ambient room humidity✓
2. Bonly operator name spelling✓
3. Cdifference between programmed and actual tool geometry✓
4. Donly drawing sheet size✓

CNC machine tool executes programs from

1. Apart program with interpolated axes motion✓
2. Bonly manual handwheel always without motors✓
3. Conly carpenter saw manual✓
4. Donly boiler operator gauge reading✓

G-code is

1. Aprogramming language for CNC machine commands✓
2. Bonly geological survey code✓
3. Conly genetic sequence code✓
4. Donly radio call sign✓

Assembly modeling in CAD manages

1. Aonly chemical reactions✓
2. Bmating constraints between multiple parts✓
3. Conly payroll data✓
4. Donly steam tables only✓

B-rep (Boundary Representation) stores

1. Afaces, edges and vertices topology with geometry✓
2. Bonly voxel occupancy grid✓
3. Conly G-code blocks✓
4. Donly spring constants✓

Drawing view projection standard ISO first-angle places

1. Aprojection plane between observer and object (third-angle US)✓
2. Bonly isometric without orthographic✓
3. Cobject between observer and projection plane✓
4. Donly hidden lines removed always by law✓

Boolean operations in solid CAD include

1. Aunion, subtraction and intersection✓
2. Bonly translation without merge✓
3. Conly colour blending✓
4. Donly mesh smoothing only artistic✓

Feature-based modeling builds parts from

1. Aonly disconnected points cloud without structure✓
2. Bdesign features like holes, fillets and patterns✓
3. Conly handwritten notes✓
4. Donly acoustic signals✓

Parametric modeling uses

1. Aonly fixed bitmap pixels✓
2. Bonly hand tracing paper✓
3. Cdimensions and constraints that drive geometry updates✓
4. Donly random number generation✓

Solid model in CAD is

1. Aonly single line sketch✓
2. Bonly text annotation✓
3. Conly NC G-code listing✓
4. Dcomplete watertight volume representation✓

Surface model in CAD defines

1. Aonly 2D orthographic views✓
2. Bonly bill of materials✓
3. Conly tool wear data✓
4. Douter skin geometry without solid interior necessarily✓

Wireframe CAD model represents object using

1. Asolid volume with mass properties always✓
2. Bonly colour texture maps✓
3. Cedges and vertices only without surfaces✓
4. Donly finite element mesh✓

CAM stands for

1. AChemical-Aided Mixing✓
2. BComputer-Aided Manufacturing✓
3. CCompressed Air Motor only✓
4. DCyclic Asset Management✓

CAD stands for

1. AComputer-Aided Design✓
2. BComputer-Automated Drafting only✓
3. CControl-Analog Device✓
4. DCompressed-Air Drive✓