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2 years ago

What are some quality assurance systems

1 answer:

7 0

Examples of quality assurance activities include process checklists, process standards, process documentation and project audit. Examples of quality control activities include inspection, deliverable peer reviews and the software testing process. You may like to read more about the quality assurance vs quality control.

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Water at 200C flows through a pipe of 10 mm diameter pipe at 1 m/s. Is the flow Turbulent ? a. Yes b. No

Degger [83]

Answer:

Yes, the flow is turbulent.

Explanation:

Reynolds number gives the nature of flow. If he Reynolds number is less than 2000 then the flow is laminar else turbulent.

Given:

Diameter of pipe is 10mm.

Velocity of the pipe is 1m/s.

Temperature of water is 200°C.

The kinematic viscosity at temperature 200°C is $1.557\times10^{-7}$ m2/s.

Calculation:

Step1

Expression for Reynolds number is given as follows:

$Re=\frac{vd}{\nu}$

Here, v is velocity, $\nu$ is kinematic viscosity, d is diameter and Re is Reynolds number.

Substitute the values in the above equation as follows:

$Re=\frac{vd}{\nu}$

$Re=\frac{1\times(10mm)(\frac{1m}{1000mm})}{1.557\times10^{-7}}$

Re=64226.07579

Thus, the Reynolds number is 64226.07579. This is greater than 2000.

Hence, the given flow is turbulent flow.

5 0

3 years ago

You hang a heavy ball with a mass of 42 kg from a silver rod 2.7 m long by 1.9 mm by 2.6 mm. You measure the stretch of the rod,

nadezda [96]

Answer:

Explanation:

cross sectional area A = 1.9 x 2.6 x 10⁻⁶ m²

= 4.94 x 10⁻⁶ m²

stress = 42 x 9.8 / 4.94 x 10⁻⁶

= 83.32 x 10⁶ N/m²

strain = .002902 / 2.7

= 1.075 x 10⁻³

Young's modulus = stress / strain

= 83.32 x 10⁶ / 1.075 x 10⁻³

= 77.5 x 10⁹ N/m²

5 0

3 years ago

Hello, I want to introduce you to our hosting - VPSDOM

Solnce55 [7]

Answer:

pogchamp

Explanation:

sussy balls

4 0

2 years ago

A rectangular channel 6 m wide with a depth of flow of 3 m has a mean velocity of 1.5 m/s. The channel undergoes a smooth, gradu

Trava [24]

Answer:

Depth in the contracted section = 2.896m

Velocity in the contracted section = 2.072m/s

Explanation:

Please see that attachment for the solving.

Assumptions:

1. Negligible head losses

2. Horizontal channel bottom

7 0

3 years ago

Match the words with their definitions

Pavlova-9 [17]

Wooden 2 X 8's, 10's, or 12's that run parallel to one another and support a floor or ceiling, and supported in turn by larger beams, girders, or bearing walls- Joist

Explanation:

Wooden 2 X 8's, 10's, or 12's that run parallel to one another and support a floor or ceiling, and supported in turn by larger beams, girders, or bearing walls- Joist
A point where a bearing/structural weight is concentrated and transferred to the foundation-Point Load
Includes all exterior walls and any interior wall that is aligned above a support beam or girder-Load Bearing Wall
Plywood substitute made of coarse sawdust that is mixed with resin and pressed into sheets-Particleboard
The replacement of excavated earth into a trench around or against a basement/crawl space foundation wall- Backfill
Continuous 8m" or 10" thick concrete pad installed before and supports the foundation wall or monopost-Footing
Ribbed steel bars installed in foundation concrete walls, footers and poured in place concrete structures designed to strengthen concrete-Rebar
The end, upper, triangular area of a home, beneath the roof-Gable
A manufactured 4X8 wood panel made out of 1-2 wood chips and glue. Often used as a substitute for plywood-OSB
The incline slope of a roof or the ratio of the total width of a house-Pitch
A manufactured structual wood beam. It is constructed of pressure and adhesive wood strands of wood-Microlam

5 0

3 years ago