GEOMETRICAL CONSTRUCTIONS — TO DIVIDE A LINE INTO ANY NUMBER OF EQUAL PARTS

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TO DIVIDE A LINE INTO ANY NUMBER OF EQUAL PARTS Q. Divide a line of 40 mm length into five equal parts and mark on it 3:2; Solution: Let AB be the given line of length 40 mm to be divided into say, five equal parts, Drave a light construction line AC at any converted … Read more

TYPES OF LINES – ENGINEERING DRAWING

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TYPES OF LINES   DESCRIPTION OF LINE APPLICATION 1. Continous thick visible out lines and Edges. 2. continous thin ( stright or  curve ) Imaginary lines, Dimension lines, Projection lines, Leader lines, Hatching, short centre lines. 3.continous thin (Free hand ) Limits of Partial or interrupted views and sections 4. Continous thin zigzag Long break lines … Read more

DRAWING INSTRUMENTS – ENGINEERING DRAWING

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DRAWING INSTRUMENTS The drawing instruments which are used to perform drawing work. The different types of drawing instruments mention below. DRAWING BOARD Along the left edge of the board, a groove is cut and a perfectly straight ebony edge called working edge, is inserted into the groove. The drawing board should be placed on the … Read more

ENGINEERING DRAWING – IMPORTANCE, NEEDS AND ROLE OF DRAWING

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IMPORTANCE OF ENGINEERING DRAWING It is a common experience that when we read news papers, magazines, etc. We grasp easily, if it is illustrated with diagrams, sketches, pictures etc. If an attempt is made to describe a machine or a building, much volume of paper is required. But the same could be done easily by … Read more

Q.Design a RC rectangular beam simply supported over an effective span of 6 m to support an imposed load of 24 kN/m inclusive of its self weight. Use M 25 grade concrete and Fe 415 steel. Provide width of the beam equal to half of the depth. Use working stress method

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Q.Design a RC rectangular beam simply supported over an effective span of 6 m to support an imposed load of 24 kN/m inclusive of its self weight. Use M 25 grade concrete and Fe 415 steel. Provide width of the beam equal to half of the depth. Use working stress method SOLUTION: Effective span l … Read more

Q.Design a RC rectangular beam simply supported over an effective span of 5m to support an imposed load of 20 kN/m inclusive of its self weight. Adopt M 20 grade concrete and Fe 415 steel. Provide effective depth 1.5 times the width. Use Working stress method

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Q.Design a RC rectangular beam simply supported over an effective span of 5m to support an imposed load of 20 kN/m inclusive of its self weight. Adopt M 20 grade concrete and Fe 415 steel. Provide effective depth 1.5 times the width. Use Working stress method SOLUTION: Effective span l = 5m Working load  w … Read more

Design a rectangular R.C.C beam to resist a bending moment of 65 kN-m. Use M 20 grade concrete and Fe 415 steel. Assume b = 0.5d

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Q.Design a rectangular R.C.C beam to resist a bending moment of 65 kN-m. Use M 20 grade concrete and Fe 415 steel. Assume b = 0.5d SOLUTION: 1. PERMISSIBLE STRESSES σcbc =7N/mm ²                               σst = 230 N / mm ²  2. … Read more

Q. Design a R.C.C beam 230 mm wide to resist a bending moment of 30 kN-m. Use M 20 grade concrete and Fe 415 steel.

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Q. Design a R.C.C beam 230 mm wide to resist a bending moment of 30 kN-m. Use M 20 grade concrete and Fe 415 steel. SOLUTION: 1. PERMISSIBLE STRESSES σcbc =7N/mm ²                               σst = 230 N / mm ²  2. DESIGN … Read more

Q.An R.C. beam 200 mm wide and 500 mm deep effective is reinforced with 3 nos. of 16 mm dia bars. Find the moment of resistance of the beam by using working stress method. Concrete grade M20 and mild steel reinforcement are used.

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Q.An R.C. beam 200 mm wide and 500 mm deep effective is reinforced with 3 nos. of 16 mm dia bars. Find the moment of resistance of the beam by using working stress method. Concrete grade M20 and mild steel reinforcement are used. SOLUTION: WIDTH b= 200mm EFFECTIVE DEPTH d = 500 mm AREA OF … Read more

Q.A reinforced concrete beam 300 mm x 600 mm overall depth is reinforced with 4 bars of 20mm diameter at an effective 600 over what uniformly distributed load this beam can carry excluding self weight, over a simply supported span of 5 m. Assume M 25 grade concrete and Fe 415 steel. Use working stress method

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Q.A reinforced concrete beam 300 mm x 600 mm overall depth is reinforced with 4 bars of 20mm diameter at an effective 600 over what uniformly distributed load this beam can carry excluding self weight, over a simply supported span of 5 m. Assume M 25 grade concrete and Fe 415 steel. Use working stress … Read more