* Question 1: Design alarm system as shown below. The alarm turns on when one of the following

Briefly discuss the principle forms of communication that might be utilized in the construction industry?

e-lub [12.9K]

Answer:

xcvjchjcnjkkhjmklk heyyyy biiiiiiiittcccchhh

4 0

3 years ago

List two reasons why machined parts often require a high degree of precision.

Gekata [30.6K]

Explanation:

Precision machining is a subtractive process used in cases where material needs to be removed from a raw product to create the finished product. Precision machining can be used to create a wide variety of products, items, and parts for any number of different objects and materials. These parts usually require tight tolerances variation from nominal dimensions and from part to part, which means that there is not much room for error in the production of the piece. Repeatability and well-controlled tolerances are hallmarks of precision machining. Components, parts and finished durable products that are designed to maintain extremely tight tolerance margins and a high degree of durability are essential and common drivers for utilization of precision machining. For example, parts that need to work together as part of a machine may need to always align within a certain margin of 0.01mm to 0.05mm. Precision engineering and machining help to ensure these parts can not only be made precisely but can be produced with this level of accuracy over and over again.

3 0

3 years ago

A stream of moist air flows into an air conditioner with an initial humidity ratio of 0.6 kg(vapor)/kg(dry air), and a dry air f

BaLLatris [955]

Answer:

$\omega_{out} = 0.867\,\frac{kg\,H_{2}O}{kg\,DA}$

Explanation:

The final humidity ratio is computed by the Principle of Mass Conservation:

Dry Air

$\dot m_{in} = \dot m_{out}$

Moist

$\dot m_{in} \cdot \omega_{in} + \dot m_{w} = \dot m_{out}\cdot \omega_{out}$

Then, the final humidity ratio is:

$\omega_{out} = \frac{\dot m_{in}\cdot \omega_{in}+\dot m_{w}}{\dot m_{out}}$

$\omega_{out} = \omega_{in} + \frac{\dot m_{w}}{\dot m_{out}}$

$\omega_{out} = 0.6\,\frac{kg\,H_{2}O}{kg\,DA} + \frac{0.4\,\frac{kg\,H_{2}O}{s} }{1.5\,\frac{kg\,DA}{s} }$

$\omega_{out} = 0.867\,\frac{kg\,H_{2}O}{kg\,DA}$

4 0

4 years ago

A scale model is 4th the size of the pump. Determine the power ratio of the pump and its scale model if the ratio of the heads i

vredina [299]

Given:

size of scale model = 4(size of pump)

power ratio of pump and scale model = 5:1

Solution:

Let the diameter of scale model and pump be $d_{s}$ and $d_{p}$ respectively

and head be $H_{s}$ and $H_{p}$ respectively

Now, power, P is given as a function of head(H) and dischagre(Q)

P = $\rho gQH$ (1)

From eqn (1):

$P \propto QH$

and

$QH \propto \sqrt{H}D^{2}$

So,

$P \propto H^{\frac{3}{2}} D^{2}$

Therefore,

$\frac{P_{s}}{P_{p}}$ = $\frac{D_{s}^{2} H_{s}^{\frac{3}{2}}}{D_{p}^{2} H_{p}^{\frac{3}{2}}}$

$\frac{P_{s}}{P_{p}}$ = $\frac{1^{2}\times 5^{\frac{3}{2}}}{4^{2}\times 1^{\frac{3}{2}}}$

$\frac{P_{s}}{P_{p}}$ = $\frac{5\sqrt{5}}{16}$

${P_{s}}:{P_{p}}$ = ${5\sqrt{5}}:{16}$

8 0

3 years ago

Florida's progressive DUI laws take ______<br> into account.

xz_007 [3.2K]

Answer:

Permanent felony conviction on your criminal record.

Financial restitution if DUI involves an accident, property damage or personal injury

Up to 50 hours community service or fee of $10 per hour of service.

Minimum fine of upto $1000 or $2000, that is if your blood alcohol level was 0.15% or more than this, or you were driving with a minor in the vehicle.

Imprisonment of upto 9 months, if the blood alcohol level was over 0.15% or idf the DUI resulted in ana accident or crash, jail time is increased to one year.

Mandatory imprisonment for not less than 10 days if your second DUI conviction occurs within 5 years of the date of the prior DUI conviction.

180 days to one year probation.

Maximum of 5 years driver's license revocation.

Up to 30 days impoundment of vehicle.

Ignition interlock device.

Criminal record stating adjudication of guilt.

Explanation:

8 0

3 years ago