The insulation thickness covering a flange should be _____.
a. larger than the pipe insulation
b. smaller than the pipe insulation
c. dependent on the pipe system purpose
d. the same as the pipe insulation
d. the same as the pipe insulation
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Conservation of energy suggests that potential energy is converted to kinetic energy when an object falls in a vacuum.  FIGURE 1.png)
Velocity at impact can be determined as follows: V = Constant  figure 2.png)
(a) Determine the constant so that the equation is valid for h in ft and V in feet per second (ft/s). (b) Determine the constant so that the equation is valid for h in ft but V in mph. (c) If you drop an object from 455 ft, what is the velocity on impact with the ground in mph and ft/s?
Answer the following statement(s) true (T) or false (F)
1. A nonconductive optical fiber cable for general-purpose use is marked as Type OFC. 2. The width of the cable tray is equal to the difference between the diameters of the cables. 3. Cable trays containing conductors that operate at over 600 volts are to be clearly marked at regular intervals to indicate that the contents are high-voltage cables. The specific marking is to state “Danger – High Voltage – Keep Away” 4. A single solid aluminum conductor not smaller than 250 kcmil is permitted in the cable, or the conductor is permitted to be formed using up to nineteen 250-kcmil solid aluminum rods laid parallel. 5. A welder is not to be considered as a separately derived premises system.
An op amp with the inverting input grounded or connected to a reference voltage is most likely
A) a zero-level detector B) an integratorf C) a comparator D) both a and b
How are voltmeters connected to read the voltage drop across a load in a circuit?
A) Any connection to the circuit will give the same reading. B) One lead is connected to the load, and the other lead is connected to ground. C) Voltmeters are connected in series with the load. D) Voltmeters are connected in parallel with the load.