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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)
Q. What do you mean by Thermosetting plastics? This plastic undergoes a number of chemical changes on heating and cure to infusible and practically insoluble articles. The chem
Geometric Defects Undercut Undercut represents a depression into the base metal adjacent to the toe of the weld and if it forms a notch, it is a potential danger for th
Match plate pattern These are extensions of the previous type. Here the cope and drag patterns along with the gating and the risering are mounted on a single matching metal or
Q. Burner Management - Discrete Controls for steam generators? The burner management system shall control the generator operation during pre-purge, light off, normal operation,
Hardfacing Electrodes There are many types of hard facing electrodes. These electrodes are mainly useful in the maintenance and repair of machinery parts and equipments subject
State required Features of Fourier Law. What are the factors on which co-efficient of thermal conductivity (K) depends upon ? Write the unit of K.
Draw schematic diagram of a position control system using armature controlled DC Servo motor. Graph the signal flow graph and hence calculate the closed loop transfer function.
Q. Resource Management for project? An important factor in overall project success is the provision of suitable and adequate resources. The initial estimate of engineering man
Find the Laplace transform of the following differential equation: ? +3? +6x = 0, x(0) =0, ?(0)=3 Taking the inverse Laplace transform of X(s), obtain the time solution x(t).
Principal Planes and Principal Stresses: Define the Principal Planes and Principal Stresses. Sol.: When an element in strained body is under action of plane stresses, it i
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