A single-phase load is located 2800 ft from its source. The load draws a current of 86 A and operated on 480 V. The maximum volt

Answer:

I am unsure what it entails?

There are five distinct types of fire extinguishers, each identifiable by specific color codes.

Red - Water-based

Creme - Foam-based

Blue - Powder-based

Black - CO2 or carbon dioxide-based

Yellow - Wet chemical-based

The type of fire extinguisher required is determined by the class of fire being dealt with.

Class A - Combustible materials (e.g., paper, wood) Recommended extinguishers - Red, Creme, Blue, and Yellow. (Avoid using Black)

Class B - Flammable liquids (e.g., paint, petrol, alcohol) Recommended extinguishers - Creme, Blue, and Black. (Avoid using Red or Yellow)

Class C - Flammable gases (e.g., butane, methane) Recommended extinguishers - Blue (Avoid using Red, Creme, Black, or Yellow)

Class D - Flammable metals (e.g., lithium, potassium) Recommended extinguishers - Blue (Avoid using Red, Creme, Black, or Yellow)

Class F - Deep fat fryers (e.g., chip pans) Recommended extinguishers - Yellow (Avoid using Red, Creme, Blue, or Black)

Electrical - any kind of electrical device

(e.g., computers, generators) Recommended extinguishers - Blue and Black (Avoid using Red, Creme, or Yellow)

Answer:

a) q = 7671 W

T0 = 47.6°C

b) ΔP = 202.3 N/m²

P = 58.2 W

c) hDarray = 2 times hD of an isolated element.

Explanation:

see the image for the solution.

Answer:

Total bandwidth: 8 kHz

Explanation:

Data provided:

Transmitter frequency: 3.9 MHz

Modulation up to: 4 kHz

Solution:

For the upper side frequencies:

Upper side frequencies = 3.9 × + 4 × 10³

Upper side frequencies = 3.904 MHz

For the lower side frequencies:

Lower side frequencies = 3.9 × - 4 × 10³

Lower side frequencies = 3.896 MHz

Consequently, the total bandwidth is computed as:

Total bandwidth = upper side frequencies - lower side frequencies

Total bandwidth = 8 kHz