subject
Engineering, 13.09.2019 23:30 rayanne6050

Adouble threaded, 1in outer diameter, ¼ in pitch power screw is used to lift a load. the screw is square threaded with a 0.08 coefficient of friction. the collar for the screw has a mean diameter of 1.75in and a coefficient of friction of 0.06. determine the torque required to lift a 5000 lb load. determine if the screw is self-locking and calculate the overall efficiency of the screw

ansver
Answers: 1

Another question on Engineering

question
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
question
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
question
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
question
Engineering, 04.07.2019 18:20
A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.
Answers: 3
You know the right answer?
Adouble threaded, 1in outer diameter, ¼ in pitch power screw is used to lift a load. the screw is sq...
Questions
question
Social Studies, 10.03.2020 10:26
question
Mathematics, 10.03.2020 10:26
question
Physics, 10.03.2020 10:26
question
Mathematics, 10.03.2020 10:27
Questions on the website: 13722361