Brake drums (or discs) must not have cracks longer than _____ the width of the friction area.
a. 1/10
b. 1/2
c. 1/3
b. 1/2
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A solid body at initial temperature T0 is immersed in a bath of water at initial temperature Tw0. Heat is transferred from the solid to the water at a rate 
, where K is a constant and Tw and T are instantaneous values of the temperatures of the water and solid. Develop an expression for T as a function of time ?. Check your result for the limiting cases, ? = 0 and ? = ?. Ignore effects of expansion or contraction, and assume constant specific heats for both water and solid.
What will be an ideal response?
What is the basic construction of a precipitation unit?
What will be an ideal response?
The management level hardware of a distributed control system is generally which of the following?
A) Mainframe computer B) Multiprocessor computer C) Personal computer
Los tomacorrientes que abastecen a los cuadros de distribución portátiles sobre el escenario deben ser:
a. accionados internamente. b. accionados en forma remota. c. accionados externamente. d. accionados automáticamente.