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SAE Grade Number 7 bolts are used, bearing strength of plate = 60000psi and the thickness of the plate is 3/8 of an inch. For a factor of safety of 3, what diameter standard bolt should be used?
Compare the two alternatives based on engineering and economic reasoning and make a justifiable recommendation for the selection of an alternative.
The collar is at rest at point A and is gently displaced gently to the left, determine the spring's unstretched length if the collar reaches point B at a speed of 14 ft/s.
If the plate moves through the mid plane between the surfaces, the force, F required to maintain this motion is? Assume the velocity distribution in the oil is linear.
A white cast iron has 25% proeutectoid Fe3C in its microstructure. How much eutectoid Fe3C will be formed after the eutectoid reaction?
Water enters at 140°C and 20 MPa and leaves at 600°C and 20 MPa. Determine the ratio of the outlet area to the inlet area if the velocity is constant through the duct.
The measured heat loss from the turbine is 300 BTU/s. Neglect changes in kinetic and potential energy. Determine the requried mass flow rate in (lbm/s).
The discharge temperature is 400 C. A heat loss of 1.0 kw is measured. Neglect changes in kinetic and potential energy. Determine the power input (kw) to the compressor.
What is the propeller rotation rate in rpm? What is the propeller shaft torque? What is the torque if the turbine above has two instead of three blades?
Pressure ratio = 9.2 Air at compressor inlet is at 25 deg F Air at turbine inlet is at 1600 deg F Find the gas temperatures at the compressor and turbine outlets Find the back work ratio Find the t
Find the velocity with which particle B begins to move. If thr coefficient of friction between B and the table is 0.20, find the speed with which B leaves the table.
The gas in then compressed to 200 psia in a reversible adiabatic process. Calculate the final temperature and the work (in Btu) involved during this process. Show all steps.
4 kg/s of saturated liquid water is heated in a steam boiler at 2 MPa to an outlet temperature of 250 C. Determine the rate of heat transfer in the boiler.
Some other heat is also transferred at 200°C. Calculate the heat transferred at 200°C and the rate of work of this device, in kW. The flow rate of water is 1 kg/sec.
Outline a method to calculate the strengths of the trailing edge shock and expansion waves, and the direction of the flow downstream of the trailing edge.
An adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the condenser pressure to the evaporator pressure.
The process is adiabatic and the steam in the supply line remains constant at 300 psia and 450 deg F. Determine the total work produced as the piston cylinder is filled. Requires an iterative soluti
Assuming cold air standard assumptions for a spark ignition engine cycle. Find: theoretical efficiency for this cycle maximum temperature for the cycle, deg F maximum pressure for the cycle, psia.
On the same graph, plot the copper temperature history assuming the heat transfer coefficient is constant, evaluated at the average copper temperature T=110C. ASsume lumped capacitance behavior.
A spring-mass system has a frequency of 2 Hz. When the mass is decreased by 0.4 kg, the frequency is changed by 25%. Determine the mass,m, and the spring constant, k (N/m) for the original system.
Some helium gas leaks out of the container until the final pressure is 400 psia and the final temperature is 185 degree F. Determine the mass {lbm} of helium gas that leaked from the container.
A well-insulate compressor take in air at 80oF at 14.7 psi, with a volumetric flow of 1,200 ft3/min. The compress air exits at 500oF, 120 psi. Determine the size of the motor, in hp, require to run
Find the required length of the pipe if the bulk outlet temperature Tm,o = 40 degree C. Find the pipe wall temperature at the exit.
Heat transfer occurs at a rate of 2 KW from the compressor to its surrounds. Assuming the idea gas model for air and neglecting kinectic and potential energy effects, determine the power input, in K
A pilot tube mounted on a aicraft flying at 2700 m measures a differential pressure of 30mmHg. Assuming a standard atmosphere determine the velocity of the aircraft in km/hr.