The heat to transform the metal from solid to liquid phase at the melting point, which depends on the metal s heat of fusion. Calculate the unit energy for melting if the melting temperature is 1000K? (K = 3.33 * 10-6).

The heat to transform the metal from solid to liquid phase at the melt

1.	The heat to transform the metal from solid to liquid phase at the melting point, which depends on the metal s heat of fusion. Calculate the unit energy for melting if the melting temperature is 1000K? (K = 3.33 * 10-6).
A.	3.33
B.	6.66
C.	9.99
D.	3.33*10<sup>-3</sup>
Answer» B. 6.66

Discussion

No Comment Found

Related MCQs

Arc shielding is accomplished by covering the electrode tip, arc, and molten weld pool with a blanket of gas or flux, or both, which inhibit exposure of the weld metal to air.
A flux is a substance used to prevent the formation of oxides and other unwanted contaminants, or to dissolve them and facilitate removal.
The quantity of heat required to melt a given volume of metal does not depend on______
The power source in a particular welding setup generates 4000 W that can be transferred to the work surface with a heat transfer factor = 0.9. The metal to be welded is low carbon steel, whose melting temperature, is 1800 K. The melting factor in the operation is 0.6. A continuous fillet weld is to be made with a cross-sectional area = 20 mm2. Determine the travel speed at which the welding operation can be accomplished? (K = 3.33 *10-6)
A gas tungsten arc-welding operation is performed at a current of 500 A and voltage of 20 V. The melting factor f2 = 0.5, and the unit melting energy for the metal Um = 10 Jmm-3. Calculate the volume of metal welded? (Heat transfer factor is 0.7)
If the total power generated is given as 3000W. Calculate the rate of heat generation at the weld if the melting factor is given as 0.6 and the heat transfer factor as 0.8?
A gas tungsten arc-welding operation is performed at a current of 300 A and voltage of 20V. Calculate the total power in the operation?
In the case of arc welding find the arc time, if the time for which the arc is switched on is given as 3hrs and the hours worked with that is given as 1hr?
Calculate the net heat available for welding if the heat transfer factor f1, melting factor f2 and the total heat supplied are given as 0.8, 0.9, 1000J respectively?
Typical fusion-weld joint in which filler metal has been added consists of several zones.

The heat to transform the metal from solid to liquid phase at the melting point, which depends on the metal s heat of fusion. Calculate the unit energy for melting if the melting temperature is 1000K? (K = 3.33 * 10-6).

Discussion

No Comment Found

Related MCQs

Reply to Comment