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a simplex dc generator is driven by a diesel engine the generator is lap wound with 8 coils 100 turns per coil and 2
the uniform slender bar ab has a mass of 8 kg and swings in a vertical plane about the pivot at a if thett 2 rads when
a 4 pole 9 coil simplex wave wound machine with 20 turns per coil is rotating in a field of 3t and pole area of 100cm2a
consider a c-d nozzle with a throat and exit diameter of 252 mm and 657 mm respectively the reservoir pressure and
consider a flat plate mounted in the test section of a supersonic wind tunnel ndash assume the nozzle is perfectly
a refrigerator uses a r-134a as the working fluid and operates on an ideal vapor-compression refrigeration cycle
ten moles of ethylene tc92 degrees c pc 2142kgm3 are to be compressed isothermally from their initial state p 217 bart
a steel circular bar sigmayp 250 mpa of d60-mm diameter is acted upon by combined moments m and axial compressive loads
a computer chip has dimensions 3 times 3 times 02 and a volumetric heat generation rate of 25 times 1073 the bottom and
an electric motor is connected to a 12-v battery the electric current to the motor is 3 a 90 of the electric energy
a multiple disc clutch employs 3 steel and 2 bronze discs having outer diameter 300 mm and inner diameter 200 mm for a
screws thread fastenershow to decide which type of thread fasteners use for any design whats the advantage and
the ball a is moving with constant velocity of 2 ms and hits ball b the ball b and c are at rest and they are connected
a 10-lb block has an initial velocity of 10 fts on a smooth horizontal plane a force f 25 t lb where t is in seconds
a single disc clutch with both sides of the disc effective is used to transmit 10 kw power at 900 rmp the axial
a multiple disc has radial width of the friction material 15th of the maximum radius the coefficient of friction is 025
a power plant produces 1000 mw of electricity and uses residential oil as the fuel the oil has a heating value the
the kinetic coefficients of friction between the 5-kg crates a and b and the inclined surface are 01 and 04
a pump fitted with 50mm bore ball bearings uses oil whose viscosity ranges from 100cst at cold pump start-up to 75cst
a mouse trap car the length of the car is 415cmm and width of the car is 9 cm length of cirrus is 32 cm the length of
a brittle cast iron e 15 msi 02 sut 30 ksi suc 100 ksi hub is shrink-fit onto a solid carbon steel shaft the hub
a freely zero friction rotating cylinder mounted on a vertical axis is placed on a model boat instead of a sail the
1 you are given a small dc motor and fully-charged d battery how would you use that motor to help determine the unknown
suppose a 24v drill has a current drawn from it that measures 5 amps the drill bit is 2 inches in diameter what force
a motor has a disk mounted on its shaft the disk has a diameter of 1 foot and weighs 60 pounds starting from rest the