MECHANICAL HAND TOOLS REFERENCE Microsoft Word - Hand tools SON (uni-due.de)

 MECHANICAL DRAWING. In technical drawing, mechanical drawing is an optional question in WASSCE AND NECO SSCE.  Mechanical drawing has to do with proper understanding of orthographic Projection, isometric insight view of the object as presented in 2 Dimension, sectional views of objects in 2 dimensions, Screws, lock devices and fasteners and assembly of objects.  Most often WAEC will give a brief of how to assemble the given mechanical tool while NECO in most cases does not give a brief. Therefore, it is important that the student learn and practice more on mechanical drawing before attempting it. In my own view, mechanical drawing is simpler compared to building drawing at the school certificate level. Find below some examples of how Mechanical drawing questions are set in WASSCE. 1. The figure below shows a bevel pulley mounting bracket, with the parts assembled, draw full scale the following views i. Sectional front elevation on cutting Plane T-T ii. Sectional end elevation on cutti

 BUILDING HAND TOOLS In the Paper 3 of W.A.S.S.C.E, building hand tools are required to be drawn freehand especially in Section A questions 2 and 3. Therefore, it is very important that you are able to draw a resemblance of the required tool.  Knowing how to draw and what to draw requires information on what to draw. This information is best viewed in pictures so that you, as a student, carry the image of the building hand tool in your mind. It is very important that you acquaint yourself with the tools so as not to be caught napping in the examination hall. Most of these building hand tools are not what you see physically everyday because of not being in the building construction field or industry. This is efforts was made for you to see pictures of some of these building hand tool on this blog. The names, pictures and uses or brief explanation of the building hand tools are given so that you will not only see it but be able to describe what they are used for. 1.  Bolster Bolster is l

  BUILDING DRAWING ASSIGNMENT The sketch below shows the floor plan of a twin three-bedroom bungalow in the line diagram. Study the given specifications and answer the questions that follow: FOUNDATION:          675 x 225 concrete strip foundation at a depth of 800 from ground level. FLOOR:                       200 hardcore; 150 thick concrete floor; 25 cement sand screed. WALL:                          All walls are 225 hollow sandcrete blocks with 12 renderings on both sides. LINTEL:                       225 x 225 reinforced concrete. DOOR:                          All doors are flush wooden. D – 2100 x 900 x 38 in 100 x 50 timber frame. WINDOWS:                  All windows are sliding-glazed sash in aluminium frames.                                                   W1 – 800 x 500;                                                                                    W2 – 1200 x 1100. ROOF: 30 double pitch with 13 corrugated asbestos sheet;                   Rafter – 100 x 50 at 1200

FLOOR PLAN AND FRONT ELEVATION OF A BUILDING USING GABLE ROOF FREEHAND DRAWING (Further assignment/Practice) Attempt the following question on Freehand drawing sketch the following using freehand. 1. Spade 2. shovel 3. 6 different types of hammer 4. Hand trowel 5. Bradawl 6. Headpan 7. Chisel 8. Spanner 9. Pick ax 10. Pan head rivet pin 11. Snap head rivet pin 12. Split pin and taper pin.  

  FREEHAND ASSIGNMENT 1.  1.        The orthographic views of a block are shown in the figure below.  Sketch approximately full size, the isometric view of the block, with point K the lowest. 2.       Two views of a block are given in the first angle projection as shown in the figure below.  Sketch approximately full size, the isometric view of the block, with point X the lowest. 333.        The figure below shows two views of a block drawn in a first-angle orthographic projection.  Make a freehand pictorial sketch of the block, making X the lowest point. 4. The figure above shows the elevation and plan of a wooden block in the first angle projection.  Sketch approximately full size, the isometric view of the block making X the lowest point.

    DETAILS OF PARTS OF A BUILDING: WALL, OPENINGS (ARCH), LINTEL, DOOR AND WINDOW. WALL A wall is a continuous vertically framed or solid structure usually of blocks, stone, concrete, timber or metal, thin or proportional to its length and height. FUNCTIONS OF WALLS 1. It encloses and protects a building. 2. It divides a building into compartments and rooms. 3. It bears the roof's load and transmits it to the foundation. 4. It protects the occupants of a building against wind, rain, and unfavorable weather conditions. TYPES OF WALLS 1. Load-bearing walls: These can be internal or external that transmit the roof's load to the foundation. 2. non-load-bearing walls: These are internal partition walls that divide the building into rooms but do not carry any load. OPENINGS IN WALLS . Opening in a wall is that part of the wall that is not covered with walling material. It is allowed to provide for windows, doors, and ventilation spaces. It is spanned on top by a lintel. LINTEL The l