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disa [49]
3 years ago
11

Determine the wattmeter reading when it is connected to resistor load.​

Engineering
1 answer:
kicyunya [14]3 years ago
3 0

Answer:

Each wattmeter measures a line-to-line voltage between two of the three power supply lines. In this configuration, the total power, watts is accurately measured by the algebraic sum of the two wattmeter values. Pt = P1 + P2. This holds true if the system is balanced or unbalanced.

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The operating sequence to light the main burners on an intermittent pilot system is:______.
11111nata11111 [884]
The pilot valve and spark igniter are energized, the pilot flame is proved, and then the main gas valve is energized.
7 0
2 years ago
Explain why Didymos B is an ideal asteroid for testing the DART system.​
Yanka [14]

Answer:

Rhe fact that Didymos B is in orbit around Didymos A makes it easier to see the results of the impact, and ensures that the experiment doesn't change the orbit of the pair around the sun.” After launch, DART would fly to Didymos, and use an on-board autonomous targeting system to aim itself at Didymos B

Explanation:

8 0
3 years ago
Air enters a constant-area combustion chamber at a pressure of 101 kPa and a temperature of 70°C with a velocity of 130 m/s. By
Norma-Jean [14]

Answer:

451 kj/kg

Explanation:

Velocity = 139m/s

Temperature = 70⁰C

T = 343K

M1 = v/√prt

= 130/√1.4x287x343

= 130/√137817.4

= 130/371.2

= 0.350

T1/To1 = 0.9760

From here we cross multiply and then make To1 the subject of the formula

To1 = T1/0.9760

To1 = 343/0.9760

To1 = 351.43

Then we go to the rayleigh table

At m = 0.35

To1/To* = 0.4389

To* = 351.43/0.4389

= 800k

M2 = 1

Maximum amount of heat

1.005(800-351.43)

= 450.8kj/kg

= 452kj/kg

8 0
3 years ago
John’s engineering team has just finished testing prototypes. What should be their next step in the design process?
VladimirAG [237]

Answer:

A.  implementation

Explanation:

5 0
3 years ago
A sinusoidal voltage source produces the waveform, v t = 1 + cos 2πft. Design a system with v t as its input such that an LED wi
DerKrebs [107]

Answer:

See explaination

Explanation:

LM358 is the useful IC which works as buffer. It enables circuit to remove overloading effect on each other. Image is in attachment.

We can define a light-emitting diode (LED) as a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons

See attached file for detailed solution of the given problem.

3 0
3 years ago
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