Respected sir,
You are very correct in the last statement. I get responses from members
(99.99%) appreciating the information furnished. The remaining two are from
you and Mr A P S Mani, writing as personal Mail.
I do an appreciated work.
On Wednesday, 28 June, 2023 at 10:28:33 pm IST, Rajaram Krishnamurthy
<[email protected]> wrote:
Q1 Mr Gopalakrishnan is a scholar who is an authority on all under the SUN
who will waste by socretical type Q &A (that is what is his thinking like ; or
else will he ask whether fridge will cool the room and immediately answer, how
can it? ) [ Am I wrong when I call him a Joker?) Q2 What a silly Q & A on
a plane stopping while taxiing. The greatest answer is that a machine is
harnessing like an athlete!! The taxiing is taking position at potential
ground energy when certain switches and engines are not kept at the optimum. ON
GROUND. Then on runway takeoff starts with raising the engine; it is not
harnessing; it is a system; race cars do that; so why does a plane stopping
become such a gossip in quora? Thank GOD there may be questions in future, why
Gopoalakrishnan sits , stands, bends, takes bath only at that time etc etc. Q3
Another Q why alarm works? Let it not work . So what? Why does
Gopalkrishnan's heart work, while he is sleeping? Q4 Which fridge bears
that write up sir? To my best of knowledge all stabilizers are kept only
overboard in all homes. And no fridge installer till yesterday, placed the
stabilizers, if so needed, outside the fridge. Near the air vent there will be
warnings not to block the vents. Notlike don't place stabilisers and don't sit
near it etc. If there is no better stuff, declare a week holiday sir. Q5
Do you have any air curtains at your home sir? It is generally for Pothys and
Nallis. The efficiency against the natural power is doubtful, in deploying
these machines. The physics behind is F-MV2,
Imagine rolling two balls at each other for a head-on collision. After they
hit, which way they roll depends on a simple law of physics: F=MV2, or "force
equals mass times velocity (squared)." This means that a small ball rolling
fast can potentially overpower a large ball rolling slowly.
The same concept goes for the air curtain. The force of the air blowing from
the curtain has to be strong enough to overpower and turn back the force of the
air coming from the outside. If your giant, open warehouse door is constantly
getting pummeled by strong winds, you'll need a hefty air curtain -- one that
blows a lot of air with great velocity.
The other thing to take into account is the direction of that velocity. You
might think that an air curtain would most effectively fight horizontal winds
with its own horizontal winds. But that's not really the case. When air is
blown directly out the door for a head-on collision with other air (like those
two balls we mentioned above), much of the power of the air is lost over
distance. Instead, air curtains direct their flow of air mostly downward toward
the floor of the doorway. The system must blow hard enough to ensure the air is
still traveling at the needed velocity as it reaches the bottom of the doorway,
and that the velocity is also stronger than the velocity of the outside,
inrushing air. As such, the curtain acts like a wall that outside air comes
toward and then bounces off of.
So if the outgoing is 20 miles per hour speed, the incoming must be 20+
so that the heavy force sends back the low force. So the air curtain is more
efficient than the swinging doors. But involves extra cost and doubtful
integrity. In summer the outside air will be hotter than the inside low power
air venting out; then air shall condition by working harder to soften the
incoming hot air. Commercial organisations who had to keep open the doors all
the time try this. A blow fan can do this job. A gatekeeper in the star hotel,
who opens the door and closes also does the same thing. Cost effectiveness
depends. KR IRS 28 6 23 NB Please no one reads all these according to Mr
Gopalakrishnan Thanks for not reading these. Also thanks for reading
Gopalkrishnan so avidly.
On Tue, 27 Jun 2023 at 19:23, 'gopala krishnan' via iyer123
<[email protected]> wrote:
CULTURAL QA 06-2023-27
Q1 Will the kitchen fridge make the housecold?
A1 Gopala Krishnan,Former AssistantGeneral Manager 1996-2004 at
Department of Telecom (1966–2004)Just now
How a fridge canmake the house cold? Ifit is switched ON, then only it will
start cooling inside. Normallykitchen fridge door is kept closed and opened
only to take things for a minuteand then again closed. This momentary action
cannot cool even tovery small area nearby the Fridge.
Then only kitchenand it is not known how a fridge can cool a house. It appears
as aquestion asked for asking a question.
Q2 Why most planes stand on the runway fora while, before take- off?
A2 Vishnu Ravi, Aerospace Engineer |Aviation Enthusiast & Content
Creator Mon
Before anexhilarating takeoff, airplanes undergo a series of crucial procedures
on therunway. Allow me to unveil the compelling reasons behind these
necessarydelays:
Harnessing Lift: To ensure a safe ascent, airplanesmust achieve a specific
velocity. The force of lift must surpass the weight ofthe aircraft, paving the
way for a successful departure into the skies.
Meticulous Taxiing: Before take-off, aircraft carefullynavigate the taxiways,
following the guidance of the distinct yellow lines. This meticulous
processguarantees avoidance of any potential collisions with nearby
buildings,vehicles, or other aircraft. Speed restrictions and controlled
turnsensure optimal safety and prevent tire skids.
Engine Vigilance: Preparing for take-off involvesconducting thorough engine
checks, especially for piston engines. Revving theengines at high power helps
identify and address any engine-related issues.Although this process may
generate significant noise, it guarantees a smoothflight.
Weight and Balance Precision: Achieving the idealweight and balance
distribution is critical for a successful take-off. Factorssuch as runway
length, surface conditions, slope, surface wind, and thepresence of obstacles
must be carefully evaluated and adjusted before embarkingon the journey.
Navigating Airport Traffic Patterns: Each airportadheres to unique traffic
patterns, dictated by runway usage, wind conditions,and potential obstructions.
These factors, alongside others, shape the precisenature of aircraft movement
within the airport vicinity.
Efficient Runway Clearance: Once the aircrafttouches down and decelerates, the
primary objective is to promptly vacate therunway. Aviation regulations
restrict the presence of more thanone aircraft on an active runway, barring
exceptional circumstances. Inbustling commercial airports, where numerous
operations occur every hour, anydelay, no matter how brief, can exacerbate
congestion. Hence, swift runwayclearance is imperative to maintain smooth
operations and minimizeinterruptions.
By understandingthe intricacies and significance of these procedures, we ensure
optimalefficiency, safety, and seamless air travel experiences.
Q3 Why does the alarm work when the phoneis switched off?
A3 Mcleodproducts,Business Consultant |Digital Marketing Services | IT
Guru22h
The alarm featureon a phone can be a useful tool to help you wake up on time.
However, many people wonder why thealarm still works when the phone is switched
off.
The answer tothis question lies in the way that the alarm feature is designed
and how itinteracts with the phone's hardware and software.
When you set analarm on your phone, the phone's clock app creates a scheduled
task that isprogrammed to trigger the alarm at the designated time. This task
is stored inthe phone's memory, which is separate from the phone's operating
system andother apps. Even if you switch off the phone, the task remains in
memory, readyto trigger the alarm at the designated time.
When the alarm istriggered, it sends a signal to the phone's hardware
components, such as thespeaker or vibration motor, to produce the alarm sound
or vibration. The alarm function is designed to operate independently of the
phone'sother functions, such as making or receiving calls or accessing the
internet.This means that you can use the alarm even if your phone is in
airplane mode orif you have turned off other features like Wi-Fi or Bluetooth.
One of the reasonswhy the alarm function works even when the phone is switched
off is that it is designed to be a low-power feature. When you switchoff your
phone, it does not completely shut down but instead enters a low-powerstate.
This state allows the phone to continue to perform basicfunctions, such as
running the clock and maintaining the scheduled tasks inmemory. Because the
alarm function is a simple and low-power feature, it cancontinue to operate
even when the phone is in this low-power state.
Another reason whythe alarm function works when the phone is switched off is
that it is abuilt-in feature of the phone's hardware and software. The
alarmfunction is part of the phone's clock app, which is a core system app that
isinstalled on the phone's firmware. This means that the alarm function isnot
dependent on other apps or services that may be running on the phone. Aslong as
the phone's clock app is working correctly, the alarm function willcontinue to
operate, even if other apps or services are not running.
In conclusion,the alarm function on a phone is designed to operate
independently of thephone's other functions and to use minimal power. When
youset an alarm on your phone, the task is stored in the phone's memory and
isprogrammed to trigger the alarm at the designated time, even if the phone
isswitched off. The alarm function is a built-in feature of the phone's
hardwareand software, which means that it is not dependent on other apps or
servicesthat may be running on the phone. As a result, you can rely on the
alarmfunction to wake you up on time, even if your phone is switched off or in
alow-power state.
Q4 Over at my fridge, it’s written that"do not keep voltage stabilizer"
over the fridge, but why?
A4 Gopala Krishnan, Former AssistantGeneral Manager 1996-2004 at
Department of Telecom (1966–2004) Just now
The particularfridge may be designed for more heat dissipation through the top
vents. Keepinga stabilizer may some times close thevents.
90% cases thestabilizer is kept over the fridge in a such a manner that the
ventholes are not covered.Many fridge companies state, there is stabilizer
inside the fridge andexternal stabilizer is not necessary. Still we provide for
additionalprotection during lightening etc.
Q5 Where are air curtain machines commonlyused?
A5 Gopala Krishnan, Former AssistantGeneral Manager 1996-2004 at
Department of Telecom (1966–2004) Just now
Air curtainmachines are commonly deployed in front of marriage hall, big
jewelery shopsetc. The inside is air conditioned and providing air curtain cool
air will notgo outside. Air curtain has 70% efficiency.
If affordable it can be providedin homes where internal stair case is provided
from the hall and hall isprovided with air conditioner
All the above QA are from Quora website on 28-06- 2023.
Quora answers need not be 100% correct answers .
Compiled andposted by R. Gopala krishnan, on 28-06-2023
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