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A four-link kinematic chain has the following link lengths: a = 20 mm; b = 50 mm; c = 70 mm; d = 90 mm. Determine the type of four-bar mechanism obtained when each link is considered fixed one at a ti
Assuming ideal gas behavior with k=1.4 and negligible effects of kinetic and potential energy for the air , determine the rate at which work is done by the air on the piston, in kW.
A nitrogen line, 540 R, 75 lbf/in2. is connected toa turbine that exhausts to a closed, initially empty tank of 2000ft3. Calculate the work of the turbine assuming constant specific heat
Neglecting the water resistance to the horizontal motion of the platform, determine the speed of the platform after a and be jump at the same time.
The tanker truck is capable of delivering 1200 gal each trip (there are 7.48 gallons in one cubic foot and 3.2808 feet in a meter) How many deliveries should be arranged?
It enters the nozzle at 100 psi, 200 F with a velocity of 100 ft/s and exits at a pressure of 25 psi at a low velocity. No work is exchanged between the nozzle and its surroundings. Calculate the ex
Calculate the quality of the steam in the pipe and Is there a limit to the steam quality that can be measured using such a device?
Knowing that the shearing stress must not exceed 3 MPa, determine the largest torque that can be applied to the member.
Calculate the rate of heat loss per meter. Thermal conductivity of the pipe wall and Calsilite calcium silicate insulation blocks are 40 W/(m K) and 0.092 W/(m K) respectively.
Determine the maximum stress at the base of the support (point A). The mass moment of inertia of the turbine system about the vertical y axis is 100 kg-m2.
The inlet water temperature to the condenser is at 20oC, 120 kPa and is leaving the condenser at 30oC, 120 kPa. Determine the required mass flow rate of the water, in kg/s, for this steady state stead
Consider a thin-walled aluminum tube of 2.600-in outside diameter, wall thickness of 0.004-in , length of 3.5-in, and yield strength of 37,700psi, determine the torque at which the tube will fail in
Heat transfer by radiation, conduction, and convection with the ambient surroundings thus cycles the water temperature. Is such a cyclic process reversible or irreversible?
What is the smallest motor you would need for a heat pump absorbing heat from the container and rejecting heat to the room at 20 C?
An air conditioner provides 1 Kg/s of air at 15 C cooled from outside atmospheric air at 35 C. Estimate the amount of power needed to operate the air conditioner. Clearly state all assumptions made
Find the energy the rock bed can give out. What is the heat engine's efficiency at the beginning of the process, and what is it at the end of the process?
A fully annealed 1040 steel rod is to be cold drawn to 8 mm in diameter to have a yield strength of at least 680 MPa and ductility greater than 35% elongation. What is the smallest starting diameter?
The valve is opened and argon flows into B and eventually reaches a uniform state of 150 kPa, 30°C throughout. What is the work done by the argon? You can assume argon behaves as an ideal gas.
The work hardening of a metal is described by the expression sigma T = 960 xi T^{0.258} in MPa 960. What is the true strain when the true stress is 550 MPa?
The fraction of liquid and vapor is such that when heated the steam will pass through the critical point. Calculate the heat transfer when the steam is heated from the initial state at 14.7 psia to
As the water is heated, the piston expands 3 cm upwards at constant pressure until it hits stops. Heat transfer continues until the pressure is 3 bars. Find the total heat transfer in J.
Expansion occurs to a state with a pressure of 200 kPa. During the process, P*v = constant. Determine the work and heat, per unit mass, in KJ/kg.
Nozzles in gas turbine electrical generators accelerate the combustion gases to higher velocities by burning a fuel. What is the velocity at the outlet of the nozzles?
The differential pressure Pd-Pa is measured with a water manometer that may be read with an uncertainty of 12.44 Pa. Calculate the uncertainty in the dimensional measurement.
Heat transfer occurs and the pressure drops to 200 kPa. KE and PE effects are negligible. Determine the amount of heat transfer.