An ampacity adjustment of conductors in cable tray is more likely to be required when installing _____.
a. single-conductor cable
b. conductors in ventilated tray
c. 600V systems
d. multiconductor cable
d. multiconductor cable
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Which of the following is not true of carbon monoxide?
A. It is corrosive. B. It is colorless. C. It is poisonous. D. It is odorless.
Consider a sealed 20-cm-high electronic box whose base dimensions are 40?cm × 40?cm placed in a vacuum chamber. The emissivity of the outer surface of the box is 0.95. If the electronic components in the box dissipate a total of 100 W of power and the outer surface temperature of the box is not to exceed 55°C, determine the temperature at which the surrounding surfaces must be kept if this box is to be cooled by radiation alone. Assume the heat transfer from the bottom surface of the box to the stand to be negligible.
What will be an ideal response?
The first recorded geldings belonged to what group of nomadic horsemen?
A. Scythians B. Roman army C. Shang dynasty D. William the Conqueror and his noble horsemen
A circuit uses 216.2 watts and draws a current of 1.88 amps. Find the resistance. Express the answer to the nearer hundredth ohm.
and 
Fill in the blank(s) with the appropriate word(s).