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katrin2010 [14]
3 years ago
13

That there is evidence of electrical failure given that there was a gas leak. Enter your answer in accordance to the item b) of

the question statementEntry field with incorrect answer 0.55 (c) That there is evidence of a gas leak given that there is evidence of electrical failure.

Engineering
2 answers:
butalik [34]3 years ago
8 0

Answer:

a) 0.84

b) 0.643

c) 0.931

Explanation:

Given:

The complete missing question is as follows.

" The maintenance firm has gathered the following information regarding the failure mechanism for 100 air conditioning systems:

                                                                  Evidence of Gas Leaks

                                                                     Yes                    No

Evidence of Electrical Failure    Yes           54                       4

                                                     No            30                     12

Find:

a)The failure involves a gas leak

b)That there is evidence of electrical failure given that there was a gas leak.

c)That there is evidence of a gas leak given that there is evidence of electrical failure.

Solution:

                    "Refer to the attachment for the solution"

givi [52]3 years ago
5 0

Answer:

See attachment below

Explanation:

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Convection ovens operate on the principle of inducing forced convection inside the oven chamber with a fan. A small cake is to b
svetlana [45]

complete question:

attached

Answer:

2356.11 W/m^2

6100.11 W/m^2

Explanation:

Assumptions:

1. Steady-state conditions.

2. The cake is placed in a large surrounding.

3. Heat flux delivered to the cake is due to convection and radiation.  

Case 1

Since convection feature is disabled the mode of heat transfer associated with this situation is through free convection and radiation.  

q''(free) = [q''(free convection+q''(radiation) ]W/m^2

            = h_free(T_infinty - T_i) + εσ(T_air^4 - T_i^4)

            = 3 W/m^2K(180°C - 24°C) + 0.97*5.67*10^-8*[(180+273K)^4 -  

               (24+273K)^4 ]

            = 468 +1881.11

            = 2356.11 W/m^2

Case 2

Since convection feature is enabled or activated the mode of heat transfer associated with this situation is through forced convection and radiation.  

q''(free) = [q''(forced convection+q''(radiation) ]W/m^2

            = h_forced(T_infinty - T_i) + εσ(T_air^4 - T_i^4)

            = 27 W/m^2K(180°C - 24°C) + 0.97*5.67*10^-8*[(180+273K)^4 -  

               (24+273K)^4 ]

            = 4212 +1881.11

            = 6100.11 W/m^2

1. The total heat flux is is 2.58 times higher when the convection feature is activated. Therefore the cake will bake faster during this condition.  

2. The contribution of convection heat flux under natural(free) convection is very low as compared to the contribution during forced convection.  

3. The heat transfer due to radiation is same in both the cases.  

4. Only 19.9 % of the total heat flux is contributed by free convection in the first case.  

5. In the second case 69 % of the total heat flux is contributed by forced convection.  

5 0
3 years ago
You have three gear wheels a, b and c connected to each other,if you turn the first gear wheel "a" clockwise what will happen to
Rina8888 [55]

In the case above,  It will take more time for a tooth of wheel B and C to make a full turn (slower) than it will for a tooth of wheel A.

<h3>What are gear wheels?</h3>

A gear wheel is known to be a kind of a wheel that is known to be made up of a teeth and/or cogs that is known to function with those of other aspect of the wheel or part.

Note that in the above case, lets use a scenario that  Wheel P has 5 teeth. Wheel M has 3 teeth and wheel N has 1 teeth.  If wheel P makes a full turn, wheel M turn will be slower as  well as wheel N which will take more time.

Therefore, In the case above,  It will take more time for a tooth of wheel B and C to make a full turn than it will for a tooth of wheel A.

Learn more about Gear wheels from

brainly.com/question/17080981

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6 0
1 year ago
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Ede4ka [16]
That is a very cool statement I love art very much
5 0
2 years ago
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A strain gauge with a 5 mm gauge length gives a displacement reading of 1.25 um. Calculate the stress value given by this displa
KengaRu [80]

Answer:

stress  = 50MPa

Explanation:

given data:

Length of strain guage is 5mm

displacement\delta = 1.25 \mu m =\frac{1.25}{1000} =  0.00125 mm

stress due to displacement in structural steel can be determined by using following relation

E =\frac{stress}{strain}

stress = E \times strain

where E is young's modulus of elasticity

E for steel is 200 GPa

stress = 200\times 10^3 *\frac{1.25*10^{-3}}{5}

stress  = 50MPa

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The inspector should inspect insulation in unfinished spaces, including attics, _____ and foundation areas.
RoseWind [281]

Answer:

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Explanation:

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