Engineering, 26.07.2019 17:10 jazare05
Aship has a length of 150 m and wetted area of 3000 m2. a model of this ship 5m in a ship has a length of 150 m and wetted area of 3000 m2. a model of this ship 5m in surface has skin resistance of 49.05 n/m2 at a velocity of 3 m/s and the velocity index is 1.85. the corresponding values for the model surface towed in fresh water are respectively 16.38 n/m2, 3m/s and 1.90. calculate : (i) the corresponding speed of ship (ii) the shaft power required to propel the ship at this speed through sea water (p =1030 kg/m3). take the propeller efficiency as 75%.
Answers: 2
Engineering, 04.07.2019 18:10, niyawilliams23
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
Engineering, 04.07.2019 18:10, samanthabutryn
Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan
Answers: 3
Engineering, 04.07.2019 19:20, dndndndnxmnc
The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal
Answers: 3
Aship has a length of 150 m and wetted area of 3000 m2. a model of this ship 5m in a ship has a leng...
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