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Write Three ways used to perform Heat treatment ? Select three out of six ways.
an aluminum plate 0.5 cm thick is to withstand a force of 50000 n with no permanent deformation. if the aluminum has a
a system executes a power cycle while receiving 800 kj by heat transfer at a tem-perature of 1600 k and discharging 120
determine the force in member of the loaded truss. assume that the four external reactions at and are equal in
Air enters an adiabatic duct of L/D = 40 at V1 = 170 m/s and T1 = 300 K. The flow at the exit is choked. What is the average friction factor in the duct?
An ideal gas, with temperature independent Cp=(7/2)R, at 15c and having an initial volume of 60m^3, is heated at constant pressure (P=0.1013 MPa) to 30c by transfer of heat from a reservoir at 50c. Calculate delS(gas), delS(heat reservoir), delS(univ..
For mass-spring-damper accelerometer, calculate the mass needed to achieve mechanical noise limit a_rms = 1 nG if the mechanical resonance frequency is to be f=100 Hz.
the properties of steels are controlled by the carbon content the alloy content and the thermal treatment. when a steel
a male reactor operator receives a whole body dose equivalent of 0.96 rem over a period of one week while working with
the motion of a particle is defined by the relation x6t2-840cospit where x and t are expressed in inches and seconds
water at the rate of 0.8 kgs at 93 degc is forced through a 5 cm id copper tube at a suitable velocity. the wall
A first class lever in static equilibruim has a 50 lb resistance force and 15 lb effort force. The lever's effort force is located 4 ft from the fulcrum. What is the actual mechanical advantage of the system?
saturated liquid r-134a at 50 psia enters an adiabatic throttling value at a rate of 0.2-lbms. the outlet pressure is
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