Engineering, 14.04.2020 17:36 mohayon2020
The length of a proposed submarine is 100 m and the planned speed is 20 km/hr. In order to estimate the power requirements for the propulsion system, the vehicle resistance must be evaluated. It was proposed to build a wind tunnel model of the submarine and test it in air. If using the similitude assumption (e. g., keeping Re the same), what is the required length of the wind tunnel model if test speed is 80 m/sec
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Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
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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
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Engineering, 04.07.2019 18:10
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
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Engineering, 04.07.2019 19:10
What is the chief metrological difference between measuring with a microscope and with an electronic comparator? a. the microscope is limited to small workpieces.a. the microscope is limited to small workpieces. c. the comparator can only examine one point on the workpiece. d. the microscope carries its own standard.
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The length of a proposed submarine is 100 m and the planned speed is 20 km/hr. In order to estimate...
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