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3 years ago

Discuss importance of good communication system

Engineering

1 answer:

meriva3 years ago

7 0

Answer:

Effective communication helps decision makers by gathering and providing the information to the right person on right time. Communication performs as a motivator to the employees by notifying the employees about the job task, process of carrying and how it could be done better.

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Name two parts that are sometimes made of hard metal and pressed into the head

gayaneshka [121]

Answer:copper , stainless steal

Wrought iron

Explanation:

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3 years ago

Entropy change is evaluated using Eq. 6.2a based on an internally reversible process. Can the entropy change between two states

Vadim26 [7]

Answer:

YES

Explanation:

Entropy is an extensive property of the system entropy change that value of entropy change can be determined for any process between the states whether reversible or not. i have attached the formula to calculate entropy change which is independent of whether the system is reversible or not and can be determined for any process.

4 0

4 years ago

Air at 1600 K, 30 bar enters a turbine operating at steady state and expands adiabatically to the exit, where the pressure is 2.

djyliett [7]

Solution :

The isentropic efficiency of the turbine is given as :

$\eta = \frac{\text{actual work done}}{\text{isentropic work done}}$

$=\frac{m(h_1-h_2)}{m(h_1-h_{2s})}$

$=\frac{h_1-h_2}{h_1-h_{2s}}$

The entropy relation for the isentropic process is given by :

$0=s^\circ_2-s^\circ_1-R \ln \left(\frac{P_2}{P_1}\right)$

$\ln \left(\frac{P_2}{P_1}\right)=\frac{s^\circ_2-s^\circ_1}{R}$

$\frac{P_2}{P_1}=exp\left(\frac{s^\circ_2-s^\circ_1}{R}\right)$

$\left(\frac{P_2}{P_1}\right)_{s=constant}=\frac{P_{r2}}{P_{r1}}$

Now obtaining the properties from the ideal gas properties of air table :

At $T_1 = 1600 \ K,$

$P_{r1}=791.2$

$h_1=1757.57 \ kJ/kg$

Calculating the relative pressure at state 2s :

$\frac{P_{r2}}{P_{r1}}=\frac{P_2}{P_1}$

$\frac{P_{r2}}{791.2}=\frac{2.4}{30}$

$P_{r2}=63.296$

Obtaining the properties from Ideal gas properties of air table :

At $P_{r2}=63.296$ , $T_{2s}\approx 860 \ K$

Considering the isentropic relation to calculate the actual temperature at the turbine exit, we get:

$\eta=\frac{h_1-h_2}{h_1-h_{2s}}$

$\eta=\frac{c_p(T_1-T_2)}{c_p(T_1-T_{2s})}$

$\eta=\frac{T_1-T_2}{T_1-T_{2s}}$

$0.9=\frac{1600-T_2}{1600-860}$

$T_2= 938 \ K$

So, at $T_2= 938 \ K$ , $h_2=975.66 \ kJ/kg$

Now calculating the work developed per kg of air is :

$w=h_1-h_2$

= 1757.57 - 975.66

= 781 kJ/kg

Therefore, the temperature at the exit is 938 K and work developed is 781 kJ/kg.

4 0

3 years ago

A project has an initial cost of $100,000 and uniform annual benefits of $12,500. At the end of its 8-year useful life, its salv

katrin2010 [14]

Answer:

$X=-\$19318$

Explanation:

From the question we are told that:

Initial cost $P= $100,000$

Annual benefits $A= $12,500$

Salvage value $S= $30,000$

Interest rate $I=10\%=>0.10$

Time $t=8years$

Generally the equation for Net Project worth X is mathematically given by

$X=-P+A+S$

Where

Present worth of Annual benefits A is

$A'=A(P/a,0.10,8)$

$A'=12500*5.3349$

$A'=\$66686.25$

Present worth of Salvage Price S is

$S'=S(P/a,0.10,8)$

$S'=30000*0.46651$

$S'=\$13995.3$

Therefore

$X=-P+A'+S'$

$X=-100000+66686.25+\$13995.3$

$X=-\$19318$

4 0

3 years ago

Anyone got a pc that can run 240 fps? Around like 1,300 dollars that can run 240 fps on fortnite whoever answers and gives me a

Nastasia [14]

Answer:

What do u need it for just gaming or for streaming and other things

8 0

3 years ago

Read 2 more answers

Discuss importance of good communication system​

Discuss importance of good communication system