Answer:
the heat loss from this insulated wire is less
Explanation:
Given data in question
diameter of cable (d) = 20 mm
( K ) = 1 W/m-k
heat transfer coefficient (h) = 50 W/m²-K
To find out
the heat loss from this insulated wire
solution
we will find out thickness of wire
heat loss is depend on wire thickness also
we have given dia 20 mm
so radius will be d/2 = 20/ 2 = 10 mm
Now we find the critical thickness i.e.
critical thickness = K / heat transfer coefficient
critical thickness = 1 / 50 = 0.02 m i.e. 20 mm
now we can see that critical thickness is greater than radius 10 mm
so our rate of heat loss will be decreasing
so we can say our correct option is (a) less
Answer:
The function of empirical evidence is information that verifies the "TRUTH" (reality) or falsity of a claim. In the empiricist view, you can only claim to have knowledge based on "empirical evidence"
I am not extremely sure that this is 100% correct because this is only based on my own opinion and understanding. "Empirical Evidence" to me is knowledge toward the reality of the world, finding the truth within the unknown discoveries.
I can't say that this will really help you but I hope that it'll provide you some kind of idea...?!
Explanation:
Answer:
channel width = 2.621 ft
Explanation:
Given data :
Decreasing Factor = 2
subcritical value = 0.4
super critical value = 2.5
width = 13 ft
attached below is a detailed solution and
Answer:
I don't know I just need points
Explanation:
it was 1880 when coal was first used to
Answer: Regardless of feature size (RFS)
Explanation:
It is a pre-selected condition for every geometric tolerance which is the second rule of GD&T and it requires no repairs, it is adopted when size feature has no effect on defined tolerance. RFS implies that GD&T callout is not dependent on size dimension. Least Material Condition (LMC) cancels out this rule.
•Reasons for using RFS.
1. It can not be easily determined.
2. It can be used anytime but can be ignored if it is specified.