Force is an external agent capable of changing a body's state of motion or rest. It has both magnitude and direction .Hence a vector quantity.

I am attaching a image file. Please go through it.

velocity at B = 55.78 m/s

Normal force exerted = 7.44kN

That statement may have been true ages ago when breakdown maintenance was the norm and machines were taken for maintenance only when they broke down. Organizations soon realized that breakdown maintenance led to much higher maintenance cost and much longer machine down time, because often the spare parts were not readily available to replace the broken (literally) item. 

Soon organizations introduced periodic or predictive maintenance and then systems are now available to track the condition of various critical parts of the machine on line while the machine is working. This way the spare parts which look like liable to fail are kept ready and the actual down time of the machine is the least.

Waiting for a machine to break down to take it for maintenance is now an outdated concept. So it is ludicrous to make a statement as mentioned.    

Uses fluid power and multiples it to give higher output for less input

A hydraulic accumulator is a device that stores the potential energy of an incompressible fluid held under pressure by an external source against some dynamic force. This dynamic force can come from different sources. The stored potential energy in the accumulator is a quick secondary source of fluid power capable of doing useful work. There are three basic types of accumulators: 1.Weight-loaded or gravity accumulator (Simple hydraulic accumulator) 2.Spring-loaded accumulator: 3.Gas loaded accumulator.

Multiple things you can do. You can search for some IT related courses, BCS, BCA etc. Management programs such as BBA, SAP courses (short term) etc. If you want to complete the bachlores then take the admission in 1st year of engineering college and later change the branch any one which you are interested.

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If we do so, engine won't start because in diesel engine compression ignition is used as diesel has low ignition temperature. But in gasoline engine we use spark ignition because petrol has high ignition temperature. As this is the reason engine won't start.

The excess chambers can reduce the overall space of the system.

Transfer files (MTP) lets you copy files back and forth between your phone and computer using the Media Transfer Protocol. ... MIDI is the option you'll use if you want to connect a MIDI device — something like a MIDI keyboard — to your phone or tablet and use a synthesizer app to create music