PROBLEM 3.152 A torque of magnitude is applied to shaft AB of the gear train shown. Knowing that the allowable shearing stress is 75 MPa in each of the three solid shafts, determine the required diameter of (a) shaft AB, (b) shaft CD, (c) shaft EF.
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Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on. A solution of potassium chromate (K2CrO4) is to be used to produce K2CrO4 crystals using an evaporator and crystallizer/filter. A 38 percent solution is fed to the evaporator. The stream leaving the evaporator is 48 percent K2CrO4 and is fed to the crystallizer/ filter. Pure K2CrO4 crystals are produced and the remaining solution is 44 percent K2CrO4. This solution is cycled back to the evaporator. If 1.2 t/h of pure crystals are needed, calculate the total input to the evaporator, the feed rate to the
crystallizer/filter, and the water removed from the evaporator. What will be an ideal response?
The second clutch controls output through the 4T60 geartrain.
Answer the following statement true (T) or false (F)
Feed intake is also affected by the energy level of the ration
Indicate whether the statement is true or false.
What is the step-down turns ratio of a transformer with 200 turns in the primary and 100 turns in the secondary?
a. 1:2 b. 2:1 c. 2:2 d. 3:4