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What is the weakest part of a bridge?

Not as many bricks, like a tunnel


How bearing balls are made?

The answer can be split into a few different sections as you can take each part of the bearing and describe how each component is made. First let's take the balls of a ball bearing as these are quite an essential part! First of all a piece of thick wire is fed into a machine, the wire is cut down by chopping off pieces from both sides until it is quite small. Deep groove ball bearings are used in a particularly wide variety of applications. Consequently, they are available in many executions and sizes.


Why use a step down trans former when the lower voltage is available?

The secondary winding of a double wound transformer is 'floating' in that it is not referenced to any other part of the circuit. You choose how to reference it. You cannot accomplish this without a transformer.


What is action-mapping in java?

In java action-mappings are not available. Action-mappings are part of struts controller.Through these action-mappings, you will map a particular request to an action class, i.e.which action should be executed on press of a button.


What is the difference between with capacitor rectifier and without capacitor rectifier?

To know the difference between capacitor and non capacitor rectifiers one must study what is the function of filter part.the filter part consists of capacitors or inductors or combination of both. the output of a simple diode rectifier is pulsating dc which means it consists of both dc part and ac part. filters are used to remove the ac part from such an output. capacitor filter means that a capacitor is used for filtering out the ac part. non capacitor or inductor filter means that an inductor is used for filtering out the ac part. There is another type called pii filter where both inductor and capacitor are used. Pii filter is the best kind of filter available