Answer:
Explanation:
Given that:
diameter = 100 mm
initial temperature = 500 ° C
Conventional coefficient = 500 W/m^2 K
length = 1 m
We obtain the following data from the tables A-1;
For the stainless steel of the rod 
Here, we can't apply the lumped capacitance method, since Bi > 0.1
However, on a single rod, the energy extracted is:
Hence, for centerline temperature at 50 °C;
The surface temperature is:
Answer:
The given statement "A negative normal strain can be considered to increase or decrease volume depending on coordinate system used" is
b) False
Explanation:
Normal strain refers to the strain due to normal stress which is when the applied stress is perpendicular to the surface.
Negative normal strain results in compression or contraction further leading to a decrease in volume while a positive normal strain results in elongation thus giving rise to an increase in volume.
Answer: The normalized corrected value at 32.5 mm = 0.69 mV
Explanation:
Signal value V1 = 20.7 mV at
distance value = 29 mm and
V2 = 15.8 mV is measured at 32.5 mm.
It is necessary, therefore, to subtract off this background level from the data to obtain a valid measurement
V1 = 20.7 - 5.1 = 15.6 mV
V2 = 15.8 - 5.1 = 10.7mV
The normalized corrected value at 32.5 mm will be
Vn = V2/V1 since V1 is the maximum value
Vn = 10.7/15.6 = 0.69 mV
