La principal función de una fresadora es _____.
a. hacer orificios
b. cortar metal
c. cortar dibujos en la
madera
d. alisar madera
Answer: D
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A. Flash dryers B. Fluid bed dryers C. Fixed bed dryers D. Rotary dryers
Which component of Total Quality Management (TQM) focuses on gathering information to understand how their processes work, what can be produced, and where improvements can be made?
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A. carbon film B. metal glaze C. wire-wound D. ?metal film
A motor with polar moment of inertia J develops torque according to the relationship T = a? + b. The motor drives a load defined by the torque–speed relationship TL = c?2 + d. If the four coefficients are all positive constants, determine the equilibrium speeds of the motor-load pair, and whether these speeds are stable.
Find: Equilibrium speeds and their stability. Assumptions: All coefficients of torque-speed curve functions are positive constants.