Engineering Answers

When the two sides of a closed traverse are non-adjoining, the determination of the unknown quantities is undertaken with an added graphical solution. For example, a line for lines may be moved from one location to a second location parallel with the first. This principle is adapted since the

When the length or direction of a line within aclosed traverse cannot be determined by field observation, these missing quantities may be determined analytically to obtain a complete set of notes for the traverse provided

A prism with an altitude of 15 cm has an octagonal base

inscribed in a square with side 10 cm. Find the volume of the prism.

If the central angle of a spherical wedge is 1 radian. What is the volume if the

radius is 3units?

a. Briefly describe the transistor operation with appropriate diagram. 

b. Describe the common collector characteristics curve.

a. Draw JFET transfer characteristics curve with appropriate details. 

b. How a MOS-FET work better than JFET, describe it with appropriate diagram

a. Define FET temperature sensitivity. Describe pinch off voltage 

b. Describe P-channel JFET characteristics curve. 

a shaft fitted with a fly wheel rotates at 250 rpm and dried a machine the torque of machine varies in a cyclic manner over a period of 3 revolution. The torque rises from 750 Nm to 300Nm uniformly during half revolution and remains constant for the following revolution . If then fall uniformly to 750 Nm during the next half revolution and remains constant for one revolution the cycle being repeated thereafter. Determine the power required to drive the machine and percentage fluctuation in speed if the driving torque applied to the shaft is constant band and mass of the fly wheel is 500 kg with the radius of gyration at 600mm.

A single cylinder single acting four stroke cycle gas engine develops 22 kw at 300 rpm the fly wheel mass is 100kg hoop stress developed is 5 Mpa density of material of rim of fly wheel is 800Kg/m 3.The speed variation on the either side is 1% of mean speed. Determine the ratio of work done during expansion and compression strokes work done in suction and exhaust stroke is negligible.

a horizontal gas engine running at 210 rpm has a bore of 220mm and stroke of 440mm. The connecting rod is 924mm long the reciprocating parts weighs 20kg when the crank has turned to the angle of 30° from IDC . The Gas pressure and the cover and the crank sights are 500KN/m2 and 60KN/m2 respectively .Diameter of the piston rod is 40mm

i) Turning moment on the crank shaft

ii) Thrust on Bearing

iii) Acceleration of the flywheel which has a mass of 8kg and radius of gyration of 600mm while the power of the engine 22kw