A big reason that communicating systems improve efficiency is
A) they can make intelligent decisions based on actual operating conditions
B) they monitor and correct power factor and
C) relays consume large amounts of power in conventional systems
D) they switch faster than relay systems
A
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PROBLEM 2.34 For the composite block shown in Prob. 2.33, determine (a) the value of h if the portion of the load carried by the aluminum plates is half the portion of the load carried by the brass core, (b) the total load if the stress in the brass is 80 MPa. PROBLEM 2.33. An axial centric force of magnitude P ? 450 kN is applied to the composite block shown by means of a rigid end plate. Knowing that h ? 10 mm, determine the normal stress in (a) the brass core, (b) the aluminum plates.
The interrupting rating of an FH-type circuit breaker is _____.
a. 5,000A b. 10,000A c. 30,000A d. 65,000A
____________________ positioning always directs the control where the tool is located from the tool's immediate previous location.
Fill in the blank(s) with the appropriate word(s).
A deficiency of N typically ________ the maturity of annual plants
A) does not affect B) hastens C) delays