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The thin-walled single cell beam shown in Figure has been idealized into a combination of
direct stress carrying booms and shear stress only carrying walls. If the section supports a vertical
shear load of 20 kN acting in a vertical plane through booms 3 and 6, calculate the distribution of
direct stress around the section.
The thin-walled single cell beam shown in Figure has been idealized into a combination of
direct stress carrying booms and shear stress only carrying walls. If the section supports a vertical
shear load of 20 kN acting in a vertical plane through booms 3 and 6, calculate the distribution of
direct stress around the section.
A single cylinder four stroke diesel engine running at 350 rpm develops. 26.5 kw brake power. The fuel contains 85% of carbon and 15% of hydrogen by weight. The mechanical and brake thermal efficiency may be taken as 86% and 30% respectively. The atmospheric air temperature is 20% and pressure is I bar. The engine uses 25% excess air and the volumetric efficiency is 82%. Determine the bore and stroke of engine if bore to stroke ratio is 1:2 and C.V. of fuel is 43960 kJ/kg of fuel
How is the friction effect taken into account at the turning and sliding pairs of a mechanism? Explain in detail.
In soccer practice Thato runs 74m in a direction of W30°S, he turns around and walks 22m in a direction of 30° North of East. Graphically determine the resultant displacement of Thato by means of addition of vectors
A fan delivers 4.7 cu.m/sec at a static pressure of 5.08 cm of water when operating at a speed of 500 rpm. The power input required is 2.963 kW. If 7.05 cu.m/sec are desired in the same fan and installation, what is the new angular speed in rpm?
A twin-engine aircraft has an engine failure shortly after takeoff at sea level. The pilot tried to turn back
toward the field by making a left-hand turn but crashes after making a 180-degree turn. The wreckage
diagram shows that the turn radius was 3,800 feet. From the radar tapes, the airspeed is estimated to be 160
knots during the turn. The level, steady stall speed of this aircraft is 135 knots.
What is the steepest allowable bank angle with out the aircraft stalling while performing a turn in the
horizontal plane at 160 knots? Please round your answer rounded to the full degree.
An axial pull of 40000 N is acting on a bar consisting of three sections of length 30 cm, 25 cm, and 20 cm and of diameters 2 cm, 4 cm and 5 cm respectively. If the young’s modulus = 2×105 N/mm2, determine: (i) stress in each section and (ii) total extension of bar.
16. Find the dew point temperature of air whose humidity ratio is 0.0150 kg water/kg dry air. (I NEED THE SOLUTION FOR THE ANSWER PLEASE)
ANSWER: 22.50 oC
In a porter governor the mass of the central load is 18 kg and the mass of each ball is 2kg. the top arms (250+X) mm while the bottom arms are (300+X) mm long. The friction of the sleeve is 20 N. If the top arms make 45 degree with the axis of rotation in the equilibrium position, find the range of the speed of the governor in that position
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