Engineering, 25.11.2020 21:10 s103394
12 holes, each 10 mm in diameter, are to be machined in a 20-mm thick flange made of 304 stainless steel. Estimate (a) the recommended cutting speed, (b) drill angular velocity, (c) feed and (d) power required. (e) How long will it take to produce these holes
Answers: 2
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:10
Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?
Answers: 2
Engineering, 04.07.2019 18:10
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
Answers: 3
Engineering, 04.07.2019 18:20
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.
Answers: 2
12 holes, each 10 mm in diameter, are to be machined in a 20-mm thick flange made of 304 stainless s...
Mathematics, 29.01.2020 04:45
Physics, 29.01.2020 04:45
English, 29.01.2020 04:45
Mathematics, 29.01.2020 04:45
Mathematics, 29.01.2020 04:45
History, 29.01.2020 04:45
Mathematics, 29.01.2020 04:45
Mathematics, 29.01.2020 04:45
Mathematics, 29.01.2020 04:45