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A smooth glass plate is coated with a special electrically conductive film that may be used to produce a constant heat flux on the plate. Estimate the air flow velocity which must be used to remove 850 W from a 0.5-m-square plate, maintained at an average temperature of 65 0C and dissipating heat to air at 1 atm and 20 0C. Suppose the plate also radiated like black surface to the surrounding 20 0C. what flow velocity would be necessary to dissipate the 850 W under these condition.
Discuss any three of the following:- (i) Electron Beam Welding (ii) Friction Welding (iii) Thermit Welding (iv) Gas Welding Give their advantages, Limitations, and a
Seawater is boiled in a 5 liter kettle to produce drinking water. In class we solved the steady-state version of this problem. Here you are asked to consider the transient period
Define the components in the STEP standard There are many components in the STEP standard. (i) The first component discusses the purpose of the standard. It contains : (
Ask question Briefly explain how, using Newton’s Law of cooling, you may write the temperature of a cooling body as an exponential function of time#Minimum 100 words accepted#
Features of the Schem: Features of the scheme are as follows : DIC is the primary registering centre. Registration is voluntary and not compulsory. Two types of
Effect of the parameters in spot welding The passage of more current than what is required causes the following defects. I. Weld expulsion ii. Cavitations iii. Weld cracking
Describe carburetion. What are the basic different air-fuel mixture on which an engine can be operated ? Write a short note on sterling cycle. In an engine working on inlet pres
Sweep pattern It is used to sweep the complete casting by means of a plane sweep. These are used for generating large shapes which are axis-symmetrical or prismatic in nature s
Determine the maximum stress developed in the beam: An I section in Figure is utilized as a beam. The beam is subjected to a bending moment of 2.5 kN m at its neutral axis. De
The Continue Dimension Command You can use the Continue command to add a string of dimensions. In the illustration above the "36mm" dimension has been continued from the "64mm"
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