Define the term Ergonomics

What will be the downward force exerted on each trestle when a man of weight 60 Kg walks on a plank of mass 5 Kg length 3 m from a trestle P to Q 2.5 m apart? Why does the no-load characteristic differ for increasing and decreasing excitation current in dc generator? Difine the formation of p and n type semiconductors? Where is of Don Gates Antares Engineering and American technology's? What aftercare is required for a hemangioma excision? Is a plough still used today? What is function of dearetor in thermal power plant? What is the charge flowing per second in a circuit? Examples of nanotechnology? What do you call the process of subdividing a problem into smaller sub problems? Does your period effect your skin complexion? How can wire up the voltmeter to measure 3 phase supply without rotary switch? What can a robot do? The signification of science and technology? How do you find flames using string? What handy way of opening and closing two pieces of fabric was perfected by Gideon Sundback in 1913? How does technology changed farming? Class limits and class boundaries? How do you calculate eot crane lt wheel? What is the process of making paper?