The Perfect Way to Introduce Yourself @ interview ! Imran

The Perfect Way to Introduce Yourself by Mohammad Imran .

GOOD Morning Sir/ Madam 

First of all I would like to thank you, for giving me an opportunity to introduce my self.

My self Name I belong from New Delhi.

I am pursuing my under graduation in Information Technology from Institute of Technology  .

I did my Intermediate from State Board with 72% & High school from State Board with 75%.

I like computer, Because In my schooling days, I have scored High marks in that subject compared to Maths, physics.

My Hobbies is playing shuttle, A Passion for music and teaching kids.

My Strength is takes Initiative to work independently, Good leadership skill, Adaptable to any kind of situation in estranged group & Helping tendency.

My Weakness is I am not comfortable, until I finish my work in the given time & over friendly in nature.

My Short term goal is to get the job in reputed company.

My Long term goal is to become more responsible and knowledgeable personality and on respectable position on my company.

That's all about me!

Thank you very much for giving a great opportunity to introduce my self behind you.



Thanks 

Which chemical is used to clean chimney & how to clean !Imran?

Which chemical is used to clean chimney & how to clean? By Imran

1. Remove the filters from the chimney.
2. Fill a bucket with boiling water.
3. Put 3 tablespoons of baking soda and salt and 2 cups of vinegar in boiling water.
4. Soak the filters in it for 1 to 2 hours.
5. Scrub with the scrub brush.
6. Clean it with water. And put the filters back in their place.

How to Eliminate Microbial Growth in HVAC ! Imran

How to Eliminate Microbial Growth in HVAC By Mohammad Imran.

Microbial growth in your HVAC system can reduce energy efficiency and contaminate the air in your building. This is a particular risk in hot, humid areas like Houston and along the Texas coast, but it can occur in buildings anywhere. Inside the HVAC system it is often cold, dark, and wet—providing the perfect environment for mold and other microbial organisms to grow.

How you clean and maintain your evaporator coils, and even the filter you use can affect the spread of bacteria, viruses, mildew, and mold in your system. Here are some tips to help eliminate or prevent microbial growth in your HVAC.

Keep Your Coils and Whole System Clean

Routine preventive maintenance is essential for maintaining the cleanliness and efficiency of your air handlers. Heat transfer across the coils is critical to energy efficiency. When there is a buildup of biofilm or other grime on the coils, it will reduce the unit’s efficiency and require more energy to heat and cool the building. This type of growth also harms air quality in the building, especially when it occurs downstream from the filters. Any spores or particles released into the airstream below the filters will go directly into the air you breathe.

Regular HVAC coil cleaning (at least once per year) helps prevent both microbial growth and the buildup of other contaminants that can negatively affect your HVAC system. For example, steam cleaning is effective because it uses heat to kill growth on the evaporator coils.

It’s also important to remember the drain pan under the coils. Condensation and runoff collect under the unit and need to be captured and drained out of the system, but if there is any standing water or residue, it needs to be treated. HVAC pan tablets can be applied based on the tonnage of the unit to prevent algae or other organisms from growing in this area. Without proper treatment, the drain pan can become clogged—potentially leading to spillage that can damage your system and cause microbial growth to spread.

Pure water can't conduct electricity ! Imran

Pure water can't conduct electricity
             By Mohammad Imran.

 because it does not contain ions. Because of diluting pure water with acid or a base or a salt, because they produce ions due to the dilution. Pure water does not conduct electricity.Only water can conduct electricity because it has some minerals present in it.

Cause of fire & how to prevent from fire in Air condition ! Imran

Causes



Most air conditioning fires are caused by a short circuit in the wiring that causes the appliance to overheat and subsequently ignite. Frequent power surges or fluctuation in the amount of voltage the air conditioner receives can also overheat the unit.

Considerations

Portable air conditioning units are a greater fire risk than stationary units or central air. These units are typically smaller than their permanent counterparts – making it more difficult for the unit to keep up with cooling demands. The longer the air conditioner runs, the more likely it is to overheat or suffer a mechanical failure that ultimately causes a fire.

Prevention

Routinely maintaining your air conditioning unit and having it inspected at least every 4 months will help you catch problems with the unit before those problems result in a house fire.

How volume control Dampers (VCD) is worked !Imran

The Volume Control Damper is used to control air flow in air duct. By Mohammad Imran.
                    

This unit comes with complete manual quadrant or motorized actuators. Volume Control Dampers can be manufactured with galvanized steel, stainless steel and aluminum and are suitable for the systems requiring air control. It would be easy to choose if you have a sound knowledge of the features of volume control damper. Often, the main consideration in choosing a volume damper is its size and the size of the area where it is to be located. Before searching for the perfect damper, find time to measure the room where you intend to place it

Centrifugal Pump troubleshooting ! Imran

Pump troubleshooting by Mohammad Imran

SUBJECT: The pump works for a while and then loses suction 10-12

A couple of things you must keep in mind when troubleshooting centrifugal pump problems:

• The centrifugal pump always pumps the difference between the suction and discharge heads. If the suction head increases, the pump head will decrease to meet the system requirements. If the suction head decreases the pump head will increase to meet the system requirements.
• A centrifugal pump always pumps a combination of head and capacity. These two numbers multiplied together must remain a constant. In other words, if the head increases the capacity must decrease. Likewise if the head decreases, the capacity must increase.
• The pump will pump where the pump curve intersects the system curve.
• If the pump is not meeting the system curve requirements the problem could be in the pump, the suction side including the piping and source tank, or somewhere in the discharge system.
• Most pumps are oversized because of safety factors that were added at the time the pump was sized. This means that throttling is a normal condition in most plants, causing the pump to run on the left hand side of its curve.

Impact of Low Refrigerant ! Imran

Low refrigerant



flow will also cause refrigerant-cooled compressors to overheat. Low evaporator pressure: Low evaporator pressure is caused by the compressor being starved of refrigerant. ... This lower temperature will cause a lower pressure in the condenser because of the pressure-temperature relationship at saturation.

How to replace an AC capacitor!by Imran

How to Replace an AC Capacitor

You can purchase a replacement at a hardware store. Then, it’s time to install:
1. Shut off the power to your air conditioning system at the breaker panel
2. Unscrew the side panel of your condenser unit to access the capacitor. 3. Locate the capacitor and discharge the power
4. Dismount the old capacitor and note how the wires are connected
5. Disconnect the wires carefully from the three capacitor connectors, labeled HERM, Fan, and C. Make a note or take a picture of which colored wires connect to which connector for later reference.
6. Install the new capacitor according to the manual
7. Screw the side panel back on the condenser unit.

Symptoms of bad AC Capacitor!By Imran

Symptoms of a Bad AC Capacitor.

If your air conditioner is not blowing cold air, a bad capacitor may be the reason.
However, look for the simple solutions first: Maybe you need to change the air filters, or it could be one of several other reasons.
Once you rule them out, if your unit is still blowing warm air, the issue may be the capacitor.
The most common signs and symptoms of a bad AC capacitor include:

AC not blowing cold air

AC takes a while to start once you turn it on

Humming sound coming from your air conditioner

AC shuts off on its own

AC won’t turn on