Answer:
(C) Prototype Model
Explanation:
I'm sure that is the answer i am very sorry if not :)
Answer:
The minimum required thickness for a steel pressure vessel (t) is 2.275 mm
Explanation:
Minimum required thickness is the thickness of a material without corrosion allowance for each component based on the appropriate design that consider pressure, mechanical and structural loading.
Given that:
radius (r) = 65 mm = 65 × 10⁻³ m
Factor of safety (N) = 3.5
Inside presssure (
) = 11 MPa
Outside pressure (
) = 1 MPa
Yield strength (
) = 1000 MPa
Therefore:
, Substituting values,
The minimum required thickness for a steel pressure vessel (t) is given by the equation:
. Substituting values
The minimum required thickness for a steel pressure vessel (t) is 2.275 mm
Answer:
False ( b )
Explanation:
In a brittle failure the cracks spreads rapidly without a significant deformation, and the cracks are very unstable with the cracks extending without an increase in the amount of applied stress.
Therefore the above description in the question is false.
Answer:
Evaluate the required thickness of styrofoam for the freezer compartment in the previous problem when the inside wall is exposed to air at -10°C through a surface coefficient of 16 W/m2 · K and the outer wall is exposed to 33°C air with a surface coefficient of 32 W/m2 · K. Determine the surface temperatures for this situation.
Explanation:
Answer:
Sampling rate = 90
23 and 45 Hz
Explanation:
The Nyquist criteria states that the sampling frequency must be at least twice of the highest frequency component.
(a) We have 10, 12, 13, 23, and 45 Hz signals
The highest frequency component in this list is 45 Hz
So minimum sampling frequency needed to avoid aliasing would be
Sampling rate = 2*45 = 90 sps
Hence a sampling rate of 90 samples per second would be required to avoid aliasing.
(b) if a sampling rate of 40 sps is used then
40 = 2*f
f = 40/2 = 20 Hz
Hence 23 and 45 Hz components will be aliased.
