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Tunnels:
Tunnels become unavoidable for negotiating hills, where detours are costly. The tunnels in rock are not lined, but those in loose strata require a lining of cement concrete. Drainage of water should be taken care of. Railway tunnels do not need to be lighted whereas road tunnels are invariably lighted.
Laying of Track
Laying of a railway track is also known as plate laying. It is the normal practice to lay the sleepers initially directly on the embankment and fix the rails to the sleepers, without placing the ballast. This is done so that the track can settle in the initial stages when the embankment is still in a loose state. Ballast is packed subsequently. The track already laid is used for transporting fresh track material on wagons.
Determine Strain energy stored in coiled helical spring: For a close coiled helical spring subjected to an axial load of 200 N with 10 coils of wire of diameter 18 mm and buil
Newer Approaches To On-Line Scheduling The on-line scheduling has established to be superior option than off-line scheduling upon the shop floor. The on-line scheduling looks
Dead Centre The position of the working piston and the moving parts which are mechanically connected to it, at the moment when the direction of the piston motion is reserved
SHAF T IN SERIES : In order to form composite shaft sometimes 2 shafts are connected in series. In this type of cases each shaft transmits same torque. The angle of twist
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What are main important terms included in the footings? Term included in the footings: a. described different types of footings and the process of selecting each type, b.
What do you mean by synchromesh device ? explain the basic working of a synchromesh gear box.
Loose piece pattern This type of pattern is also used when the contour of the part is such that withdrawing the pattern from the mould is not possible. Hence during moulding th
A long hollow cylinder has outer and inner radii 150 mm and 50mm respectively. It create heat at a rate of 1kW/m³ (k= 0.5 W/m ºC). If the maximum temperature obtain at radius of 10
Careful consideration of the bioreactor agitation and aeration system is required in order to maintain a homogeneous environment and provide sufficient oxygen transfer rates to mee
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