Cars going straight or turning right have the right-of-way before you when you're making this type of turn

Explain working mechanism of safety valve.

ValentinkaMS [17]

Answer:

Safety valves are part of the safety features placed in the system to prevent the system from experiencing over pressures

Explanation:

A safety valve is a valve that is actuated automatically when the pressure on the inlet portion rises to a specified value to allow the outflow or discharge of fluid such as liquid, steam or gas out of the system to prevent the system pressure limit from being exceeded. The design of safety valves is such that the valve closes the emergency outlet port again once the system pressure returns to normal.

5 0

3 years ago

Airtight plugs are installed in the ends of large sizes of PVC conduit during bending to_____________.

Lana71 [14]

Airtight plugs are installed in the ends of large sizes of PVC conduit before bending to A. prevent the conduit from collapsing when heated.

<h3>What is Airtight plugs?</h3>

Airtight plugs is necessary in the PVC conduit so as to be able to avoid the collapse of conduit.

In this case, Airtight plugs are installed in the ends of large sizes of PVC conduit before bending to A. prevent the conduit from collapsing when heated.

Learn more about Airtight plugs on:

brainly.com/question/20704252

#SPJ1

7 0

2 years ago

Forced air at T= 25ºC and V= 12 m/s is used to cool electronic elements on a circuit board. One such element is a chip, 4 mm ×4

tia_tia [17]

Answer:

The surface temperature of the chip 39.99°C

Explanation:

Assumptions

1. Steady state condition.

2. Power dissipated within the chip is lost by convection across upper surface only.

3. Chip surface is isothermal

4. The average heat transfer coefficient for the chip surface is equivalent to the local value x - L

Properties: from table. See attachment (4)

See attachment for complete solution to the problem

i had problem submitting the answer in the answer box

8 0

3 years ago

Compare the heat transfer coefficients for laminar forced and free convection over vertical flat plates. Develop an approximate

Len [333]

Answer:

Check the attached images below.

Explanation:

It Is required to develop an approximate relation between . Reynolds and Grashor numbers such that the heat-transfer coefficients for pure forced convection and pure .e convection are equal, assuming laminar flow, by comparing the heat-transfer coefficients for forced or free convection over vertical hat plates.

write the equation or heat transfer coefficient Mr (arced comedian.

Kindly check the attached images below.

8 0

3 years ago

Refrigerant 134a enters an air conditioner compressor at 4 bar, 208C, and is compressed at steady state to 12 bar, 808C. The vol

SCORPION-xisa [38]

Answer:

heat transfer rate is -15.71 kW

Explanation:

given data

Initial pressure = 4 bar

Final pressure = 12 bar

volumetric flow rate = 4 m³ / min

work input to the compressor = 60 kJ per kg

solution

we use here super hated table for 4 bar and 20 degree temperature and 12 bar and 80 degree is

h1 = 262.96 kJ/kg

v1 = 0.05397 m³/kg

h2 = 310.24 kJ/kg

and here mass balance equation will be

m1 = m2

and mass flow equation is express as

m1 = $\frac{A1\times V1}{v1}$ .......................1

m1 = $\frac{4\times \frac{1}{60}}{0.05397}$

m1 = 1.2353 kg/s

and here energy balance equation is express as

0 = Qcv - Wcv + m × [ ( h1-h2) + $\frac{v1^2-v2^2}{2}$ + g (z1-z2) ] ....................2

so here Qcv will be

Qcv = m × [ $\frac{Wcv}{m} + (h2-h1)$ ] ......................3

put here value and we get

Qcv = 1.2353 × [ {-60}+ (310.24-262.96) ]

Qcv = -15.7130 kW

so here heat transfer rate is -15.71 kW

6 0

3 years ago