Lines composed of closely and evenly spaced short dashes, in a drawing, represent
Show Hint
- Visible edges
- Hidden edges
- Hatching
- Pitch circle
The Correct Option is B
Solution and Explanation
Lines made up of short, evenly spaced dashes are used to indicate hidden edges.
These are the edges that are not visible from a specific viewpoint because they are behind or inside an object.
Such lines help in visualizing features that are otherwise obscured in the view, enhancing the understanding of complex parts.
By contrast, visible edges use continuous thick lines, and hatching uses thin diagonal lines for section views.
Thus, the correct representation for these dashed lines is (B) Hidden edges.
Top Questions on Engineering Drawing Skills
Match the List-I with List-II:
- CBSE CLASS XII - 2025
- Engineering Graphics
- Engineering Drawing Skills
The above given top view corresponds to
- CBSE CLASS XII - 2025
- Engineering Graphics
- Engineering Drawing Skills
Select the correct statements for the given figure.
(i) A horizontal pyramid is placed with its axis parallel to both H.P. and V.P.
(ii) The solid has three triangular faces in total.
(iii) A horizontal pyramid is placed with its axis perpendicular to V.P.
(iv) It is an example of polyhedron.
- CBSE CLASS XII - 2025
- Engineering Graphics
- Engineering Drawing Skills
Orthographic projection of a cube is shown as :
- CBSE CLASS XII - 2025
- Engineering Graphics
- Engineering Drawing Skills
Fig. 2 shows the assembly of a SLEEVE AND COTTER JOINT. Disassemble the parts correctly and then draw to scale 1:1 its following views of the following components. Keeping the same position of both sleeve and cotter-B with respect to both H.P. and V.P.:
(i) SLEEVE
(a) Front view lower half in section
(b) Left side view
(ii) COTTER-B
(a) Front view
(b) Left side view
Print the title and scale used. Draw the projection symbol. Give 6 important dimensions.- CBSE CLASS XII - 2025
- Engineering Graphics
- Engineering Drawing Skills
Questions Asked in CBSE CLASS XII exam
- An amine 'X' reacts with Hinsberg reagent and the product obtained is soluble in alkali. The amine 'X' is:
- A point source of light in air is kept at a distance of 12 cm in front of a convex spherical surface of glass of refractive index 1.5 and radius of curvature 30 cm. Find the nature and position of the image formed.
- CBSE CLASS XII - 2025
- Ray optics and optical instruments
- Two slits 0.1 mm apart are arranged 1.20 m from a screen. Light of wavelength 600 nm from a distant source is incident on the slits.
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- Two infinitely long straight wires ‘1’ and ‘2’ are placed \(d\) distance apart, parallel to each other, as shown in the figure. They are uniformly charged having charge densities \(\lambda\) and \(-\frac{\lambda}{2}\) respectively. Locate the position of the point from wire ‘1’ at which the net electric field is zero and identify the region in which it lies.
- CBSE CLASS XII - 2025
- Electrostatics
Standard electrode potential for \( \text{Sn}^{4+}/\text{Sn}^{2+} \) couple is +0.15 V and that for the \( \text{Cr}^{3+}/\text{Cr} \) couple is -0.74 V. The two couples in their standard states are connected to make a cell. The cell potential will be:
To calculate the cell potential (\( E^\circ_{\text{cell}} \)), we use the standard electrode potentials of the given redox couples.
Given data:
\( E^\circ_{\text{Sn}^{4+}/\text{Sn}^{2+}} = +0.15V \)
\( E^\circ_{\text{Cr}^{3+}/\text{Cr}} = -0.74V \)- CBSE CLASS XII - 2025
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