Solve the following problem and if necessary round answer to two decimal place: 
.
What will be an ideal response?
15.56
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An electric arc furnace uses
A) three electrodes to melt iron ore. B) two electrodes to melt steel scrap. C) three electrodes to melt steel scrap. D) two electrodes to melt iron ore. E) none of the above.
Technician A says that all current diesel CR fuel systems use a transfer pump. Technician B says that Caterpillar flange mount their transfer pump to the CR high pressure pump. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Air at 20°C with a convection heat transfer coefficient of 25?W/m2•K blows over a horizontal steel hot plate (k = 43 W/m•K). The surface area of the plate is 0.38 m2 with a thickness of 2 cm. The plate surface is maintained at a constant temperature of Ts = 250°C, and the plate loses 300 W from its surface by radiation. Calculate the inside plate temperature (Ti).
What will be an ideal response?
Which of the following types of DC motors are typically controlled by a DC drive?
A. permanent magnet B. series C. shunt D. compound E. both a and c