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3 years ago

The first assembled product used for testing and validating the product concept is called a prototype. True or false

Engineering

1 answer:

harina [27]3 years ago

7 0

Answer:

True

Explanation:

a prototype is first produced to test for defects

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What is the preferred approach to risk mitigation?

maw [93]

Answer:

The correct option is;

Terminate

Explanation:

Termination of the risk is equivalent to elimination of the risk by avoiding the activity that brings about the risk or by using a different process that does not include the risk observed in the previous process option

When the reward far outweigh the risk, it may be decided to terminate or eliminate the risk and miss the reward and also terminate the likelihood of the losses to be incurred.

7 0

3 years ago

An Ideal gas is being heated in a circular duct as while flowing over an electric heater of 130 kW. The diameter of duct is 500

aleksandrvk [35]

Answer:

Exit temperature = 32°C

Explanation:

We are given;

Initial Pressure;P1 = 100 KPa

Cp =1000 J/kg.K = 1 KJ/kg.k

R = 500 J/kg.K = 0.5 Kj/Kg.k

Initial temperature;T1 = 27°C = 273 + 27K = 300 K

volume flow rate;V' = 15 m³/s

W = 130 Kw

Q = 80 Kw

Using ideal gas equation,

PV' = m'RT

Where m' is mass flow rate.

Thus;making m' the subject, we have;

m' = PV'/RT

So at inlet,

m' = P1•V1'/(R•T1)

m' = (100 × 15)/(0.5 × 300)

m' = 10 kg/s

From steady flow energy equation, we know that;

m'•h1 + Q = m'h2 + W

Dividing through by m', we have;

h1 + Q/m' = h2 + W/m'

h = Cp•T

Thus,

Cp•T1 + Q/m' = Cp•T2 + W/m'

Plugging in the relevant values, we have;

(1*300) - (80/10) = (1*T2) - (130/10)

Q and M negative because heat is being lost.

300 - 8 + 13 = T2

T2 = 305 K = 305 - 273 °C = 32 °C

4 0

3 years ago

Most methods of transportation rely on some sort of infrastructure to drive, steer, navigate, or direct at some point or another

likoan [24]

Answer:

Most methods of transportation rely on some sort of infrastructure to drive, steer, navigate, or direct at some point or another in a journey. Which category of transportation system is least reliant on infrastructure?(1 point). road

Explanation:

6 0

3 years ago

2.50 Consider the following message: FORMULA FOR SUCCESS (a) Estimate the probabilities of the letters in the message using the

snow_lady [41]

Answer:

Part a: The probability of each letter is given in the table below.

Part b: The average information in this message is 1.91.

Explanation:

Part a:

The message is given as

FORMULA FOR SUCCESS

Total number is given as n=17

Letter x Probability p(x)

F 2 2/17

O 2 2/17

R 2 2/17

M 1 1/17

U 2 2/17

L 1 1/17

A 1 1/17

S 3 3/17

C 2 2/17

E 1 1/17

Part b

The information is given as $\sum{xp(x)}$

Letter x Probability p(x) xp(x)

F 2 2/17 4/17

O 2 2/17 4/17

R 2 2/17 4/17

M 1 1/17 1/17

U 2 2/17 4/17

L 1 1/17 1/17

A 1 1/17 1/17

S 3 3/17 9/17

C 2 2/17 4/17

E 1 1/17 1/17

______________________________________

Total 1.91

So the average information in this message is 1.91.

7 0

3 years ago

Truyền động trên nguyên lý Ma sát, ăn khớp hoặc kết hợp ma sát + ăn khớp ?

77julia77 [94]

Answer:

paki translate nalang sa tagalog o English

Explanation:

SALAMAT.

4 0

3 years ago