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4 years ago

Before proceeding into an intersection at a green signal, you should look out for

2 answers:

6 0

Before proceeding into an intersection at a green signal, you should look out for: A. Vehicles following you preparing to turn. ... Vehicles in the intersection waiting to turn right. C
(On google)

Lyrx [107]4 years ago

5 0

Answer:

vehicles follower you preparing to turn , vehicles in the intersection waiting to turn right. c

Explanation:

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Consider a magnetic disk consisting of 16 heads and 400 cylinders. This disk has four 100-cylinder zones with the cylinders in d

e-lub [12.9K]

Answer:

Disk Capacity = 45056000 bytes

Optimal skew = 26.455 ≈ 27

Maximum Data transfer rate = 262.5 GB per second

Explanation:

given data

heads = 16

cylinders = 400

cylinder zones = 100

each sector contains = 512 bytes

average seek time = 1 msec

disk rotates = 7200 RPM

to find out

disk capacity, optimal track skew, and maximum data transfer rate

solution

first we get total number of sectors that is

total number of sector = number of zones × (number of sectors in different zones

total number of sector = 100 × (160+200+240+280)

total number of sector = 88000

Disk Capacity = total number of sectors × size of each sector

Disk Capacity = 88000 × 512

Disk Capacity = 45056000 bytes

and

Rotation time = $\frac{60}{7200}$

Rotation time = 8.33 milli seconds

so Optimal number of sectors in a track = average of ( 160,200,240,280 )

Optimal number of sectors in a track = 220

now New sector is read every $\frac{8.33}{220}$ i.e = 0.0378 ms

here Optimal skew = seek time ÷ new sector read time

Optimal skew = $\frac{1}{0.0378}$

Optimal skew = 26.455 ≈ 27

and

here we know that for maximum transfer rate we will select cylinder with maximum number of sectors i.e here 280 sectors

capacity of one track with maximum = 280 × 512

capacity of one track with maximum = = 143360 bytes

and Number of rotations in 1 second is = $\frac{7200}{60}$

Number of rotations in 1 second is = 120

so Data transfer rate = Number of heads × Capacity of one track × Number of rotations in one second

Data transfer rate = 16 × 143360 × 120

Data transfer rate = 275251200 bytes per second

Data transfer rate = 262.5 GB per second

3 0

3 years ago

Based on the hardness values determined in Part 1, what is the tensile strength (in MPa) for each of the alloys?

tigry1 [53]

Answer:

a. 115

b. 135

c. 220

d. 185

Explanation:

Spheriodite is microscopic constituents in some steels which is composed of spherically shaped cementide particle. It is most ductile and softest type of steel. Pearlite is two phased lamellar compose of alternating layer of ferrite and cementite. It is hard and strong but not tough. It is applied on cutting tools like chopper, blades and knives.

7 0

3 years ago

If the power factor is corrected to 0.95 lagging, keeping the receiving end MVA constant, what will be the new voltage regulatio

k0ka [10]

Answer:

Due to power factor correction; voltage regulation is improved and efficiency is increased.

Explanation:

Power Factor Vs Voltage Regulation:

When the power factor is improved, the current in the system decreases as power factor and current have inverse relation.

When current decreases, the corresponding voltage drops in the system decreases as the voltage and current are directly proportional.

Since the voltage drop decreases, the voltage regulation improves since the voltage regulation is given by

Voltage regulation = (Vin - Vout)/Vout x 100%

Vout will be greater due to less voltage drop.

Power Factor Vs Efficiency:

Efficiency is given by

η = Pout/Pin

but Pin = Pout + Plosses

η = Pout/Pout + Plosses

When power factor is improved, the current decreases, the decrease in current reduces the power losses since the losses are directly proportional to the square of current (I²R) therefore, decrease in Plosses results in the increased efficiency of the system.

5 0

4 years ago

Is there anyone who can help me with welding?

Gnoma [55]

what is it ill know your question??!!

5 0

3 years ago

Answer every question of this quiz

Reil [10]

I'd say number 4, number 3 looks like an exhaust valve

5 0

4 years ago