List of top Engineering Graphics Questions asked in CBSE Class Twelve Board Exam

Match the List-I with List-II:

Match the List-I with List-II for the given isometric projection of combination of solids:

Select the correct option for the given isometric projection of combination of solids.

(i) The axis of pyramid is parallel to H.P. and one of its base edges is perpendicular to H.P.
(ii) A sphere of diameter 70 mm is placed on the top face of a prism.
(iii) The axis of pyramid is parallel to V.P. and one of its base edges is perpendicular to V.P.
(iv) The axis of prism is perpendicular to V.P. and one of its base edges is parallel to H.P.
 

Identify the correct figure which represents the isometric projection of a vertical square prism placed on a horizontal square slab.

The above given top view corresponds to

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.

Orthographic projection of a cube is shown as :

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.

Fig. 1 shows the details of the parts of a TURN-BUCKLE. Assemble all these parts correctly and then draw to scale 1 : 1 its following views. Keep 54 mm threaded portion of each rod inside the body of turn-buckle.
(i) Front view upper half in section
(ii) Right side view

If a label with “USE & CARE” instructions is to be pasted on the entire outer circumference of the bottom cylindrical portion, then the surface area of the label to be used will be __________.
(Hint : Lateral surface area of cylinder = $2\pi rh$)
 

The complete circle of $\phi d$ and the incomplete circle of $\phi 0.8d$ in the top view of a vertical grub screw with diameter ‘d’ are drawn to __________
 

The front view of a vertical grub screw is represented by which of the following views?

Why grub screws are used to hold sleeve on a shaft?
Grub screws are also known as
The total height in true scale, of the fire-extinguisher excluding the top valve assembly is
Cylinder and hemisphere are examples of
The projections which are mostly used in the design process of this product is
Draw to scale 1:1, the standard profile of EXTERNAL METRIC THREAD taking enlarged pitch as 50 mm. Give standard dimensions.
Draw to scale 1:1, the front view of a vertical hexagonal bolt of diameter 25 mm. The bolt is resting on H.P. with its hexagonal head on it. Give standard dimensions.
Draw the isometric projection of a triangular prism (base edge 35 mm, length 60 mm). It is placed on H.P. with one of its long edges and its axis is perpendicular to V.P. Indicate the direction of viewing. Give all the dimensions.
Construct an isometric scale.
Due to which of the following reason, usually pipes are made of standard length, not of desired length?
A thread with vertical and parallel flanks is called
The length of the metal end of a plain stud of diameter 30 mm is
Choose the correct option regarding screw threads.
(i) A screw thread formed on the surface of a cylinder is known as taper thread.
(ii) In single start thread lead \( L = 2P \).
(iii) In the practical use of the threads, clearance must be provided between the external and internal threads.
(iv) Root is the edge of the thread surface nearest to the axis in case of internal thread.