Why: In the **first angle projection method**, the object is placed in the first quadrant between the observer and the vertical plane (VP). The left side view is projected on the right side of the front view. This follows the standard convention where views are arranged such that the left side view appears to the right of the front view, top view below the front view, and right side view to the left of the front view. Option B correctly identifies this positioning.[5]

Why: In **first angle projection**, the top view is placed **below the front view**. This is because the horizontal plane (HP) is assumed to be below the object, and when projected onto the drawing plane after rotation, the top view appears below the front view. This contrasts with third angle projection where the top view is above the front view. Option D is correct as per standard engineering drawing conventions.[5]

Why: **Orthographic projection** consists of standard multiview projections including front view, top view, left/right side views, and sometimes rear or bottom views. **Isometric view** is a type of pictorial projection (axonometric) that shows three faces in one view with equal foreshortening, not a true orthographic view. Therefore, isometric view is NOT typical in orthographic projection. Option C is correct.[7]

Why: This question requires constructing standard three-view orthographic projection in first angle method. The answer provides step-by-step methodology ensuring full marks for proper view arrangement, line types, projection alignment, and dimensioning as per engineering drawing standards. The solution meets 3-4 mark criteria with introduction, key points, and standards reference.[1]

Why: Standard third angle multiview projection question. Answer covers method differences, view positioning, construction sequence, and standards reference ensuring full credit for complete orthographic representation.[1]