Answer:
Machine 2 has a higher process capability index, it would be best considered for purchase.
Explanation:
Process capability index: Cpk= Min [(mean-L spec)/3sd; (U spec-mean)/3sd]
For machine 1, mean= 48mm and L spec= 46 and U spec= 50, Standard deviation sd= 0.7
Cpk= [0.952;0.952]= 0.952
For machine 2, mean= 47 and L spec= 46 and U spec= 50, Standard deviation sd= 0.3
Cpk= [1.111;3.333]= 1.111
It is clearly observed from the calculations above that the Cpk value of machine 2 is higher than that of machine 1.
Since machine 2 has a higher process capability index, it would be best considered for purchase.
Answer:
d
Explanation:
Beryllium copper combines high strength with non-magnetic and non-sparking qualities. It has excellent metalworking, forming and machining properties. It has many specialized applications in tools for hazardous environments, musical instruments, precision measurement devices, bullets, and aerospace.
Answer:
<em>a. 14.5 W/</em><em></em>
<em>b. 58 W</em>
<em></em>
Explanation:
Thermal conductivity k = 0.029 W/m∙K
Temperature difference ΔT = 10 ℃
Thickness of sheet x = 20 mm = 0.02 m
area of sheet = 2m x 2m = 4
a. <em>heat flux q = k x (ΔT/x)</em>
q = 0.029 x (10/0.02)
q = 0.029 x 500 = <em>14.5 W/</em><em></em>
<em></em>
b. <em>Rate of heat transfer through the sheet Q = heat flux x area</em>
Q = 14.5 x 4 =<em> 58 W</em>
Answer:
227.5Secs
Explanation:
How long it will take To get to temperature 320 degrees and it's thermal time is 227.5 Seconds and 47.8 respectively. Kindly check attached file for how this is gotten.
You should use a hammer to remove a guard while a tool is in use.