Engineering, 07.12.2019 03:31 dilibngalmira
For each problem and data set described below, state how would you setup the (key, value) pairs as inputs and outputs for the mappers and reducers. also, explain the operation performed by the map and reduce functions given their input. assume your hadoop program uses textinputformat as its input format (where each record corresponds to a line of the input file). since the inputs for the mappers are the same (byte offset, content of the line), you only need to specify the mappers’ outputs. if the problem requires more than one mapreduce jobs, specify the role of each map/reduce function along with their input and output key-value pairs). you should solve the problem with minimum number of mapreduce jobs.
Answers: 3
Engineering, 04.07.2019 18:10
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
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
Engineering, 04.07.2019 18:10
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
For each problem and data set described below, state how would you setup the (key, value) pairs as i...
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