Q.A line EF, 85 mm long has its end E, 25 mm above the HP and 20 mm in front of the VP. The top and front views of the line have lengths of 55 mm and 70 mm respectively. Draw the projections of the line and find its true inclinations with the VP and the HP

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Q.A line EF, 85 mm long has its end E, 25 mm above the HP and 20 mm in front of the VP. The top and front views of the line have lengths of 55 mm and 70 mm respectively. Draw the projections of the line and find its true inclinations with the VP and … Read more

Q.A line PF 65 mm long has its end P. 15 mm above the HP and 15 mm infront of the VP. It is inclined at 55 to the HP 35 to the VP. Draw its projections of the line.

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Q.A line PF 65 mm long has its end P. 15 mm above the HP and 15 mm infront of the VP. It is inclined at 55 to the HP 35 to the VP. Draw its projections of the line. SOLUTION: Steps: 1. Since the sum of inclinations (6+4) of the line with the principle … Read more

Q.A line EF, 75 mm long is in the first quadrant with end E in the HP and end F in the VP. The line is inclined at 30° to the HP and at 45° to the VP. Draw the projections of the line EF.

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Q.A line EF, 75 mm long is in the first quadrant with end E in the HP and end F in the VP. The line is inclined at 30° to the HP and at 45° to the VP. Draw the projections of the line EF.  Solution: Steps: 1. The plan / of F and the … Read more

Q.A line NS 80 mm long has its end N, 10 mm above the HP and 15 mm in front of the VP. The other end 5 is 65 mm above the HP and 30 mm in front of the VP. Draw the projections of the line and find its true inclinations with the HP and the VP. 

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Q.A line NS 80 mm long has its end N, 10 mm above the HP and 15 mm in front of the VP. The other end 5 is 65 mm above the HP and 30 mm in front of the VP. Draw the projections of the line and find its true inclinations with the HP … Read more

Q.Draw the projection of a line 60 mm in length which is making the angles of 35° to V.Pand 55° to H.P and touching both the planes.

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Q.Draw the projection of a line 60 mm in length which is making the angles of 35° to V.Pand 55° to H.P and touching both the planes. SOLUTION: (1) From any point on x-y line draw the initial top view a b, considering the line is initially 55° to H.P and parallel to V.P (Here … Read more

ENGINEERING DRAWING —– PROJECTIONS OF LINES

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PROJECTIONS OF LINES It is the shortest joining of two end points. In this article, the projections of lines with reference to the different planes are explained. They are when (A) the line is parallel to one or both the planes. (B) the line contained by one or both the planes. (C). The line perpendicular … Read more

Q.The projections of different points are shown in Fig. Define the position of the points in relation to the reference planes. The distances marked are in millimeters.

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Q.The projections of different points are shown in Fig. Define the position of the points in relation to the reference planes. The distances marked are in millimeters. SOLUTION: (i) Point P is in both the VP and the HP. It lies in xy. (ii) Q is 40 mm infront of the VP and 25 mm … Read more

Draw the projections of the following points on a common reference line (i) P, 35 mm behind the VP and 20 mm below the HP. 3 (ii) Q, 40 mm in front of the VP and 30 mm above the HP. (iii) R, 50 mm behind the VP and 15 mm above the HP. (iv) S, 40 mm below the HP and in the VP. (v) T, 30 mm in front of the VP and 50 mm below the HP. (vi) U, 35 mm behind the VP and in the HP.

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Q.Draw the projections of the following points on a common reference line (i) P, 35 mm behind the VP and 20 mm below the HP. 3 (ii) Q, 40 mm in front of the VP and 30 mm above the HP. (iii) R, 50 mm behind the VP and 15 mm above the HP. (iv) … Read more

ENGINEERING DRAWING —- PROJECTION OF POINTS

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PROJECTION OF POINTS  Let us consider a horizontal plane and vertical plane situated as shown in Fig. 6.0. They are forming four quadrants namely: (1) First quadrant (ii) Second quadrant (iii) Third quadrant and (iv) Fourth quadrant. 1. First Quadrant: It is a space derived above the H.P and in front of V.P as shown … Read more

GEOMETRICAL CONSTRUCTIONS —— CYCLOIDAL CURVES — HYPO -TROCHOID

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CYCLOIDAL CURVES — HYPO -TROCHOID HYPO-TROCHOID A hypo-trochoid is a curve traced by a point situated either within (or) outside the generating circle, when it rolls without slipping on circumference of another circle [directing circle], inside it. (a) If the tracing point lies outside the generating circle, the curve traced is called a superior hypo … Read more