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Under the action of constant force, a 2kg block moves such that its position x as a function of time is given by X=t^3/3 ,where x in meters and t in sec , the workdone by force in first 2 seconds isA 26.6 jB 3.3 jC 16 jD 32 jSolution) v=dx/dt=t^2,a=dv/dt=2t,f(t)=ma(t),w=∫f(t)*v(t) dt (from x=0 to x=2 sec)
Estimate temperature of air at exit from compressor: The air compressor compresses atmospheric air at 0.1MPa and 27 0 C 10 times the inlet pressure. During compression heat
Describe the following terms:- a) Shear force and bending moment b) Concentrated load, Uniformly varying load and Uniformly distributed load c) Beam & Types of beam. d)
Explain the Bar and Rod Drawing - cold drawing processes In case of bar drawing, hot drawn bars are at first pickled, washed and coated to prevent oxidation. Once it's done
Discover the torque on the shaft: A steel shaft transmits 105 kW at 160 rpm. If the shaft is 100 mm diameter, discover the torque on the shaft and the maximum shear stress ind
Use roller support - steel trusses of bridges: Explain, why do we use roller support in case of steel trusses of bridges? Sol. : In the bridges most of time external f
Thermodynamic process - Thermodynamics: Thermodynamic system undergoes changes because of the energy and mass interactions. Thermodynamic state of system changes because of th
EQUIPMENT FOR RESISTANCE WELDING-Single phase vs three phase The resistance welding machines can be connected either across 440 V mains (across two lines) or three phase mains.
Engine oil level and viscosity : Ensure that the engine oil level is maintained till the upper mark on the gauge oil level. Check engine oil viscosity. Oil should not be abnormall
Q. Show the Welding Processes and Restrictions? Welding may be performed manually, semi-automatically and or automatically using any process or combination of processes accepte
WHICH IS THE BEST ONLINE MONITORING SYSTEM FOR GAS METAL ARC WELDING
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