Answer:
b. Re
Explanation:
Reynolds number describe the type of flow of fluid. If Reynolds number has a high value then it is called turbulent flow and if Reynolds number is low then it is called laminar flow. Reynolds number given as follows:
For internal pipe flow, if Reynolds number greater than 4000 then, it is called turbulent flow and if Reynolds number less than 2000 then it is called laminar flow. The Reynolds number between 2000 to 4000 the flow is called transition flow.
Answer:
a) 600°F days
b) 103°F days
Explanation:
Given data :
overall heat loss coefficient = 400 Btu/h.oF
Furnace efficiency = 0.78
applying the degree- day method the heating energy requirement per day can be obtained by subtracting the average temperature for a particular day from the acceptable mid/balance point temperature
lets assume the mid/balance point temperature = 65°F
a) heating energy requirement in Denver Colorado
we will have 600°F days ; considering the the average temperature - balance point temperature
= 665 - 65 = 600°F
b) heating energy requirement in Little Rock Arkansas
we will have 103° days
Hydraulic refer to liquids (e.g., water), electric refers to electricity and pneumatic refers to gases (e.g., air). They are different devices that can be applied to a robot drive.
<h3>Hydraulic, electric and pneumatic devices </h3>
Hydraulic devices refer to the technologies that involve the use of liquids such as oil or water.
Pneumatic devices refer to the technologies that involve the use of gases such as air.
Electricity devices refer to the technologies that involve the use of an electric field to produce a given outcome (e.g., motion in an electric motor).
A robot drive may exploit these different devices in order to perform specific functions.
Learn more about pneumatic devices here:
brainly.com/question/9778362
