Engineering Answers

An experiment consists of observing the motion of a vehicle on an inclined plane under under different tractive resistance conditions. The vehicle of mass 2Mg is released from rest at point A, in neutral on a slope of 1 in 30 and reaches the lowest point B after traveling 300 m down the incline. After reaching point B, the vehicle moves on a horizontal road surface, still in neutral with the same tractive resistance to motion. Analyse the motion of the vehicle in the following cases:

Give your own analyses on the circumstances or conditions hydraulic accumulators and bottle jacks are used

explain the uses of the following gear drives: worm gears and spur gears

I want the answers of whole mechanical engineering subjects

An overhanging beam ABC is loaded as shown in Figure-2. Find the slopes over each support and at the right end. Find also the maximum upward deflection between the supports and the deflection at the right end. Take E = 2 × 105 N/mm2 and I = 5 × 108 mm4.

A generating station consists of two 100 MVA generators with 6%

reactance each and one 150 MVA generator with 8% reactance as shown

in Figure below. These generators are connected to a common bus bar

from which loads are taken through a number of 50 MVA, step up

transformers each having 5% reactance. Compute the rating of circuit

breaker on (i) low voltage side and (ii) on high voltage side.

A steel bar of 50mm and 1m long is subjected to an axial force of 250 kN.Determine the decrease in lateral dimentions due to this load given E= 200 Gpa and v = 0.3

A rolled steel Joist of I-Section has flange length of 300 mm. wide and 20 mm thick with a web thickness of 20 mm. and overall depth of I-Section is 600 mm. If this beam carries a UDL of 40 KN/m over the simply supported beam of span 10 m, find the maximum stress produced in the beam.                                                                          

¨For simplicity, take n = 2.0 and use the value of f for complete turbulence, as given by Eq. (8.54).

¨All pipes are cast iron, and are at the same elevation. For initial flows, assume only values of 30,15, and 0 L/s (the zeros in dg and fh).

¨If the pressure head at a is 40 m, find the pressure head at d (which might represent a fire demand, for example) neglecting velocity heads.