Engineering Answers

Mention all the properties of energy signal and power signal

Find out the time period of x(t)= 0.2 e^- I 2πt/3+ 0.1 sin πt

Check the periodicity of x(t)= 3cos√2+7 cos 5πt

Mention all the properties of even signal and odd signal

A wooden log of 0.8 m diameter and 6 m length is floating in a river water. Find the depth of wooden log in water when the sp. gr. Of the wooden log is 0.7.

Find the Inverse Laplace transform of X(s)= -s^2-2s+1/(s+2)(s+3)^2. ROC: Re{s}>-2

Find the even and odd Components of the signal x(t)= e^at

FInd the Function whose Fourier Cosine Transform sin(as)/s

In a triple riveted butt joint with two equal cover strips, having zigzag

arrangement of riveting the thickness of the plate 10 mm. Consider allowable

tensile, crushing and shear stress are 100 MPa, 150 MPa and 80 MPa

respectively. Calculate: - (i) diameter of rivet and (ii) pitch of rivet joint.

A simple flange coupling has to transmit 50 KW at 250 RPM. . Assume torque

to be 20 % more than the full load. Calculate (a) Shaft diameter (b) Key

Dimensions and (c) number & size of Bolts. The stresses are as under, For

Shaft & Key [σt] = 75 N/mm2, [] = 50 N/mm2,[σc] = 120 N/mm2 For Bolt

[]= 40 N/mm2