1Which of the following pencil grades is the hardest?
A.HB
B.2B
C.H
D.9H
Correct Answer: 9H
Explanation:Pencils are graded by hardness (H) and blackness (B). 9H is the hardest and lightest, while B grades are softer and darker.
Incorrect! Try again.
2The standard size of an A0 drawing sheet is:
A. mm
B. mm
C. mm
D. mm
Correct Answer: mm
Explanation:A0 is the largest standard ISO paper size used in engineering drawing, measuring mm with an area of .
Incorrect! Try again.
3What is the primary use of a T-square in manual drawing?
A.Drawing vertical lines
B.Drawing horizontal lines
C.Measuring angles
D.Drawing curves
Correct Answer: Drawing horizontal lines
Explanation:The T-square slides along the edge of the drawing board and is primarily used to draw horizontal parallel lines and support set squares.
Incorrect! Try again.
4Which two set squares are commonly used in engineering drawing?
A. and
B. and
C. and
D. and
Correct Answer: and
Explanation:The two standard set squares used are the set square (isosceles) and the set square.
Incorrect! Try again.
5A Mini Drafter combines the functions of which instruments?
A.T-square, Set squares, and Protractor
B.Compass, Scale, and Eraser
C.Divider, T-square, and French curves
D.Scale, Set squares, and Compass
Correct Answer: T-square, Set squares, and Protractor
Explanation:A mini drafter is a versatile tool that can draw horizontal and vertical lines (T-square/Set squares) and measure angles (Protractor).
Incorrect! Try again.
6In engineering drawing, a Center Line is represented by:
A.Continuous thick line
B.Dashed line (short dashes)
C.Chain thin line (long dash - dot - long dash)
D.Zigzag line
Correct Answer: Chain thin line (long dash - dot - long dash)
Explanation:Center lines are used to indicate axes of symmetry and are represented by a chain thin line consisting of alternating long and short dashes.
Incorrect! Try again.
7Hidden edges in an object are represented by which type of line?
A.Continuous thin line
B.Dashed thin line
C.Chain thick line
D.Continuous thick line
Correct Answer: Dashed thin line
Explanation:Hidden lines or dashed lines represent features that are not visible from the current viewing angle.
Incorrect! Try again.
8The standard length-to-width ratio of an arrowhead in dimensioning is:
A.1:1
B.2:1
C.3:1
D.5:1
Correct Answer: 3:1
Explanation:Standard engineering arrowheads should be approximately 3 times as long as they are wide.
Incorrect! Try again.
9Which system of dimensioning places dimensions such that they can be read from the bottom or the right-hand side of the drawing?
A.Unidirectional System
B.Aligned System
C.Parallel System
D.Chain System
Correct Answer: Aligned System
Explanation:In the Aligned System, dimensions are placed perpendicular to the dimension line and read from the bottom or right side. In Unidirectional, all text is horizontal.
Incorrect! Try again.
10In the Unidirectional System of dimensioning, how are dimensions placed?
A.Perpendicular to the dimension line
B.Parallel to the dimension line
C.Usually in a break in the dimension line to be read from the bottom
D.Only on vertical lines
Correct Answer: Usually in a break in the dimension line to be read from the bottom
Explanation:In the Unidirectional system, all dimension text is oriented horizontally to be read from the bottom of the sheet.
Incorrect! Try again.
11The symbol before a dimension value indicates:
A.Radius
B.Diameter
C.Square
D.Angle
Correct Answer: Diameter
Explanation:The symbol is the standard abbreviation for diameter in engineering drawing.
Incorrect! Try again.
12Usually, the thickness of a Dimension Line compared to an Outline (visible edge) is:
A.Thicker
B.Same thickness
C.Thinner
D.Double the thickness
Correct Answer: Thinner
Explanation:Dimension lines, extension lines, and leader lines are drawn as thin continuous lines, whereas visible object outlines are thick continuous lines.
Incorrect! Try again.
13What does the term 'Single Stroke' mean in lettering?
A.Writing the letter without lifting the pen
B.The thickness of the line is determined by a single pass of the instrument
C.Using only one specific pencil
D.Writing very fast
Correct Answer: The thickness of the line is determined by a single pass of the instrument
Explanation:Single stroke does not mean continuous writing; it means the width of the stem of the letter is the width of the pen/pencil tip used.
Incorrect! Try again.
14For standard engineering lettering, the height () to width () ratio for most capital letters (like M, A) is approximately:
A.1:1
B.7:4 or 6:5 depending on font
C.2:1
D.10:1
Correct Answer: 7:4 or 6:5 depending on font
Explanation:While it varies slightly by standard (e.g., BIS), normal lettering often follows a grid where width is roughly 5/7 or 4/7 of the height, excluding wide letters like M and W.
Incorrect! Try again.
15What is the Representative Fraction (R.F.)?
A.
B.
C.
D.
Correct Answer:
Explanation:Representative Fraction (R.F.) is the ratio of the length of the object on the drawing to the actual length of the object, with both units being same.
Incorrect! Try again.
16If an actual length of 10 meters is represented by 1 cm on a drawing, what is the R.F.?
A.1:10
B.1:100
C.1:1000
D.1:10000
Correct Answer: 1:1000
Explanation:. Therefore, .
Incorrect! Try again.
17A scale where is known as:
A.Reducing Scale
B.Enlarging Scale
C.Full Size Scale
D.Plain Scale
Correct Answer: Enlarging Scale
Explanation:If the drawing is larger than the actual object (e.g., gears of a watch), the R.F. is greater than 1, making it an enlarging scale.
Incorrect! Try again.
18A Plain Scale is used to represent up to how many consecutive units?
A.One
B.Two
C.Three
D.Four
Correct Answer: Two
Explanation:A plain scale measures two units or a unit and its subdivision (e.g., decimeters and centimeters).
Incorrect! Try again.
19Which scale is used to represent three consecutive units (e.g., meters, decimeters, and centimeters)?
A.Plain Scale
B.Diagonal Scale
C.Vernier Scale
D.Chord Scale
Correct Answer: Diagonal Scale
Explanation:A diagonal scale uses the principle of similar triangles to measure three consecutive units or up to two decimal places.
Incorrect! Try again.
20The principle of the Diagonal Scale is based on:
A.Pythagoras Theorem
B.Similar Triangles
C.Circle Geometry
D.Integration
Correct Answer: Similar Triangles
Explanation:Diagonal scales divide a short vertical line into equal parts using intersecting diagonal lines based on the properties of similar triangles.
Incorrect! Try again.
21What is the default file extension for an AutoCAD drawing?
A..dwg
B..dxf
C..pdf
D..doc
Correct Answer: .dwg
Explanation:.dwg (drawing) is the native file format for AutoCAD data.
Incorrect! Try again.
22In AutoCAD, the LIMITS command is used to:
A.Set the size of the drawing area/boundary
B.Limit the number of layers
C.Set the file size limit
D.Restrict the zoom level
Correct Answer: Set the size of the drawing area/boundary
Explanation:LIMITS defines the coordinate boundaries (lower-left and upper-right) for the drawing grid.
Incorrect! Try again.
23Which function key toggles ORTHO mode in AutoCAD?
A.F7
B.F8
C.F3
D.F10
Correct Answer: F8
Explanation:F8 toggles Ortho mode, which restricts cursor movement to horizontal and vertical directions.
Incorrect! Try again.
24What does OSNAP (F3) stand for in AutoCAD?
A.Object Snap
B.Open Snap
C.Orientation Snap
D.Output Snap
Correct Answer: Object Snap
Explanation:Object Snap (OSNAP) allows the cursor to snap to precise geometric points on an object, such as endpoints, midpoints, or centers.
Incorrect! Try again.
25In AutoCAD, the UCS icon represents:
A.Universal CAD System
B.User Coordinate System
C.Unit Control Setting
D.Uniform Color Standard
Correct Answer: User Coordinate System
Explanation:UCS stands for User Coordinate System, establishing the XY plane and Z-axis orientation.
Incorrect! Try again.
26Which command is used to set the unit style and precision in AutoCAD?
A.MEASURE
B.SCALE
C.UNITS
D.DIMSTYLE
Correct Answer: UNITS
Explanation:The UNITS command opens the Drawing Units dialog box to define length types (Decimal, Architectural, etc.) and precision.
Incorrect! Try again.
27The Cartesian coordinate system in AutoCAD uses which axes for 2D drawing?
A.X and Z
B.Y and Z
C.X and Y
D.North and South
Correct Answer: X and Y
Explanation:2D drafting primarily uses the horizontal X-axis and the vertical Y-axis.
Incorrect! Try again.
28What is the purpose of the F7 key in AutoCAD?
A.Toggle Grid display
B.Toggle Ortho
C.Help
D.Undo
Correct Answer: Toggle Grid display
Explanation:F7 turns the background grid display on or off.
Incorrect! Try again.
29To draw a line using relative polar coordinates in AutoCAD, the correct syntax is:
A.
B.
C.
D.
Correct Answer:
Explanation:The @ symbol indicates relative coordinates (from the last point), and < precedes the angle value.
Incorrect! Try again.
30Which AutoCAD interface element displays prompts and accepts typed commands?
A.Ribbon
B.Status Bar
C.Command Line
D.ViewCube
Correct Answer: Command Line
Explanation:The Command Line is the area where users type commands and receive prompts or messages from the software.
Incorrect! Try again.
31A line drawn with Phantom line type is used to show:
A.Hidden edges
B.Alternate positions of moving parts
C.Center of a circle
D.Dimension limits
Correct Answer: Alternate positions of moving parts
Explanation:Phantom lines (long dash - two short dashes) indicate alternate positions of moving parts, adjacent positions of related parts, or repeated detail.
Incorrect! Try again.
32In a Diagonal Scale, if the diagonal length covers a vertical distance of 10mm and moves horizontally by 10mm, what horizontal distance corresponds to the midpoint of the diagonal?
A.1mm
B.2.5mm
C.5mm
D.10mm
Correct Answer: 5mm
Explanation:By the principle of similar triangles, at the midpoint (half height), the horizontal distance is half the total horizontal traverse. .
Incorrect! Try again.
33What is the standard text style used in engineering drawing headers?
A.Times New Roman
B.Comic Sans
C.Single Stroke Vertical Gothic
D.Italic Script
Correct Answer: Single Stroke Vertical Gothic
Explanation:Vertical Gothic lettering is the standard for legibility and uniformity in technical drawings.
Incorrect! Try again.
34When setting up LIMITS in AutoCAD, if you want an A4 size landscape area, the Upper Right corner should be:
A.0,0
B.210,297
C.297,210
D.100,100
Correct Answer: 297,210
Explanation:A4 size is mm. In landscape orientation, X is 297 and Y is 210.
Incorrect! Try again.
35Which F-key brings up the Help window in AutoCAD?
A.F1
B.F2
C.F11
D.Esc
Correct Answer: F1
Explanation:F1 is the universal standard key for Help in Windows-based applications, including AutoCAD.
Incorrect! Try again.
36Which navigation tool allows you to move the drawing view without changing the zoom level?
A.Zoom Extents
B.Orbit
C.Pan
D.Scale
Correct Answer: Pan
Explanation:Pan (often the hand icon) shifts the view of the drawing horizontally or vertically without changing magnification.
Incorrect! Try again.
37In the dimension text 'R 20', what does 'R' signify?
A.Roughness
B.Radius
C.Right side
D.Reference
Correct Answer: Radius
Explanation:R stands for Radius, used for dimensioning arcs and fillets.
Incorrect! Try again.
38Which line type is the thickest in a standard engineering drawing?
A.Visible / Outline
B.Center line
C.Dimension line
D.Construction line
Correct Answer: Visible / Outline
Explanation:Visible outlines (Object lines) are drawn thick (approx 0.5 - 0.7mm) to stand out, while most others are thin (0.2 - 0.35mm).
Incorrect! Try again.
39The intersection of the X and Y axes (0,0) in AutoCAD is called the:
A.Absolute Point
B.Origin
C.Start Point
D.Base
Correct Answer: Origin
Explanation:The point (0,0) is the global origin of the Cartesian coordinate system.
Incorrect! Try again.
40To draw a perfect square using the Rectangle command in AutoCAD, you can specify dimensions or:
A.Use the Square command
B.Draw 4 lines manually only
C.Use relative coordinates like @50,50
D.Use F8 and guess
Correct Answer: Use relative coordinates like @50,50
Explanation:Using relative coordinates (e.g., @X,Y where X=Y) creates a square from the starting point.
Incorrect! Try again.
41Which pencil is generally used for drawing outlines and visible edges?
A.2H or H
B.HB
C.4H
D.6H
Correct Answer: HB
Explanation:HB (or sometimes H) is medium soft and creates dark, distinct lines suitable for final visible outlines.
Incorrect! Try again.
42In lettering, the space between words is usually equal to:
A.The width of the letter 'M'
B.The width of the letter 'I'
C.The height of the letters
D.The width of the letter 'O'
Correct Answer: The height of the letters
Explanation:Or more commonly, the width of the letter 'O' or roughly the height of the text, to ensure clear separation.
Incorrect! Try again.
43If a map uses a scale of 1 cm = 1 km, the R.F. is:
A.
B.
C.
D.
Correct Answer:
Explanation:1 km = 1000 m = 100,000 cm. .
Incorrect! Try again.
44Which AutoCAD feature allows you to snap to the intersection of grid lines?
A.Grid Snap (F9)
B.Ortho (F8)
C.Polar Tracking (F10)
D.Dynamic Input
Correct Answer: Grid Snap (F9)
Explanation:Snap Mode (F9) constrains the cursor to defined intervals, often aligning with the visible grid.
Incorrect! Try again.
45What is the angle of the chamfer usually used on the top of a hexagonal nut, often drawn using a set square?
A.
B.
C.
D.
Correct Answer:
Explanation:Standard hexagonal nuts are usually chamfered at .
Incorrect! Try again.
46In a Plain Scale constructed to read meters and decimeters, what do the main divisions represent?
A.Centimeters
B.Decimeters
C.Meters
D.Kilometers
Correct Answer: Meters
Explanation:In a scale reading meters and decimeters, the larger main unit is Meters, and the subdivisions are Decimeters.
Incorrect! Try again.
47Which command reverses the last action in AutoCAD?
A.OOPS
B.BACK
C.UNDO (or Ctrl+Z)
D.DELETE
Correct Answer: UNDO (or Ctrl+Z)
Explanation:The standard command to reverse actions is UNDO (U) or the Windows shortcut Ctrl+Z.
Incorrect! Try again.
48Leader lines in dimensioning are used to:
A.Draw the boundary
B.Connect a dimension note to a feature (like a hole)
C.Underline text
D.Cross out errors
Correct Answer: Connect a dimension note to a feature (like a hole)
Explanation:A leader line directs a dimension, note, or symbol to the intended feature on the drawing.
Incorrect! Try again.
49Which instrument is used to transfer measurements from a scale to the drawing?
A.Protractor
B.Divider
C.Compass
D.French Curve
Correct Answer: Divider
Explanation:A divider looks like a compass but has two metal points; it is used specifically for transferring lengths.
Incorrect! Try again.
50What is the 'Length of Scale' formula used when constructing a scale?
A.
B.
C.
D.
Correct Answer:
Explanation:To determine how long to draw the scale on paper, you multiply the R.F. by the maximum capacity (real-world distance) the scale needs to measure.