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dexar [7]
3 years ago
15

If the outside diameter of a pipe is 2 m, the length of a piece of insulation wrapped around it would be a)- 628 cm b)- 12.56 m.

c)- 12.56 cm d)-62.8 m
Engineering
1 answer:
AlexFokin [52]3 years ago
6 0

The distance a piece of insulation would be, would be the circumference of the pipe.

The circumference is found by multiplying the diameter by PI.

Circumference - 3.14 x 2 meters = 6.28 meters

1 meter is equal to 100 cm.

Multiply the total meters by 100 to convert to cm:

6.28 meters x 100 = 628 cm.

The answer would be a. 628 cm.

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A pump is used to transport water from a reservoir at one elevation to another reservoir at a higher elevation. If the elevation
erastova [34]

Answer:b

Explanation:

We know power delivered by Pump is

P=\rho \times Q\times g\times \Delta H

where P\rho=Density of fluid

Q=Flow rate

g=acceleration due to gravity

\Delta H=Change in Elevation

If \Delta H is increased by 4 time then

P'=\rho \times Q\times g\times (4\Delta H)

P'=4 P

So power increases by four times.

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3 years ago
Does anyone know how to fix this? It's a chromebook and project where I have to try to fix it​
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Answer:

Hey I found this on You Tube it may help u a lot

Explanation:

https://youtu.be/ab9BdT6fYJ8

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2 years ago
How many ase certifications are there for automotive technicians?
romanna [79]

Answer:

There are 50 ASE certification tests, covering almost every imaginable aspect of the automotive repair and service industry.

Explanation:

yww <33

5 0
3 years ago
Explain about Absolute viscosity, kinematic viscosity and SUS?
ArbitrLikvidat [17]

Answer:

Absolute viscosity is the evaluation of the resistance (INTERNAL) of the fluid  flow

Kinematic viscosity relates to the dynamic viscosity and density proportion.

SUS stands for Sabolt Universal Seconds. it is units which described the variation of oil viscosity

Explanation:

Absolute viscosity is the evaluation of the resistance (INTERNAL) of the fluid  flow, whereas Kinematic viscosity relates to the dynamic viscosity and density proportion. fluid with distinct kinematic viscosities may have similar dynamic viscosities and vice versa.Dynamic viscosity provides you details of  power required to make the fluid flow at some rate, however kinematic viscosity shows how quick the fluid moves when applying a certain force.

SUS stands for Sabolt Universal Seconds. it is units which described the variation of oil viscosity when change with change in temperature. it is measured by using viscosimeter.

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3 years ago
Determine (with justification) whether the following systems are (i) memoryless, (ii) causal, (iii) invertible, (iv) stable, and
lina2011 [118]

Answer:

a.

y[n] = x[n] x[n-1]  x[n+1]

(i) Memory-less - It is not memory-less because the given system is depend on past or future values.

(ii) Causal - It is non-casual because the present value of output depend on the future value of input.

(iii) Invertible - It is invertible and the inverse of the given system is \frac{1}{x[n] . x[n-1] x[n+1]}

(iv) Stable - It is stable because for all the bounded input, output is bounded.

(v) Time invariant - It is not time invariant because the system is multiplying with a time varying function.

b.

y[n] = cos(x[n])

(i) Memory-less - It is memory-less because the given system is not depend on past or future values.

(ii) Causal - It is casual because the present value of output does not depend on the future value of input.

(iii) Invertible - It is not invertible because two or more than two input values can generate same output values .

For example - for x[n] = 0 , y[n] = cos(0) = 1

                       for x[n] = 2\pi , y[n] = cos(2\pi) = 1

(iv) Stable - It is stable because for all the bounded input, output is bounded.

(v) Time invariant - It is time invariant because the system is not multiplying with a time varying function.

3 0
2 years ago
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