¿Cuáles de estos dos tipos de conductos tienen el mismo diámetro exterior en los tamaños de 2-1/2 pulgadas (6.35 cm) o superiores?
a. Todos tienen diámetros internos diferentes.
b. EMT y RMC
c. RMC e IMC
d. EMT e IMC
b. EMT y RMC
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A quick test that can be made to determine if an installation is good is known as a(n) _____.
a. adequacy test b. maintenance test c. insulation resistance test d. go/no-go test
What is an open delta system?
What will be an ideal response?
Computer analysis. The columns and girder of the indeterminate rigid frame in Figure P5.57a are fabricated from a W18 × 130 wide flange steel section: A = 38.2 in. 2 and I = 2460 in. 4 . The frame is to be designed for a uniform load of 4 kips/ft and a lateral wind load of 6 kips; use E = 29,000 kips/in. 2 . The weight of the girder is included in the 4 kips/ft uniform load. (a) Compute the reactions, plot the deflected shape, and draw the shear and moment curves for the columns and girder, using the computer program. (b) To avoid ponding* of rainwater on the roof, the girder is to be fabricated with a camber equal to the deflection at midspan of the roof girder produced by the uniform load. Determine the camber Figure P5.57.
An open electrical circuit has zero ohms resistance
Indicate whether the statement is true or false