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by   Maryam Hussain What are the common causes of clogging of the drain of a Kitchen Sink? Clogging of a kitchen sink drain is a frequently faced problem. The causes of kitchen drain clogging may be the accumulation of oily or greasy wash that leached out from dinner set or pressure cookers, or foodstuff that escaped through sink screens while washing.  What are the symptoms of clogged drain? The symptom of a clogged sink is either no or a slow decrease in the water level in the sink . What is the first of all methods to unclog the drain of a kitchen sink? Some methods work to some extent but there is a method that really works.   By the way, I have tried all of these methods. You can first attempt to unclog the drain of kitchen sink by pouring the boiling water into the sink. But if the water doesn’t start to move, you’ll need other methods. What is chemical treatment method to open the clogged drain? The next set of remedial methods is the chemical...

 by   Maryam Hussain An adequate supply of water to fulfill the needs of kitchen, drinking and sanitation is a primary requisite for good health. When a town water supply is not available , then the owner of the property must develop a quality water storage and supply system for the use of residents of his property.  While estimating the water storage requirements , consideration should be given to the peak daily water usage, the maximum-day demand, the capacity of the normal and standby pumping equipment, the availability and capacity of second power supply, an estimated duration of power failure, and the duration of time required for repairs with respect to the time of power and equipment failure. A preferred minimum storage capacity would be a two-day use or a maximum-day usage. Three days of storage is the preferred one. All distribution reservoirs should be covered, should be provided with an overflow, and should be provided with a drain, access manh...

by   Maryam Hussain What is a chemical equation? A chemical equation is merely a representation of a chemical reaction in the chemist's shorthand.   A chemical reaction is what happens when one substance meets and reacts with another and a new substance is formed. The substances that react together are called reactants , and those formed are called products. The chemical properties of reactants involved in a chemical reaction are different from those of products.  Chemical properties are characteristics that involve chemical change. A chemical property of hydrogen gas is that it combines with oxygen gas to form water (liquid). A chemical property of chlorine gas is that it combines with sodium metal to form table salt, a non-metal solid. A chemical property of gasoline is that it ignites to undergo combusts to produce carbon dioxide and carbon monoxide and a lot of heat. A chemical equation obeys the “law of conservation of mass” which states ...

by   Maryam Hussain What is a chemical equation? A chemical equation is the symbolic representation of a chemical reaction in terms of chemical formulas. Before writing any chemical equation, a step is there that symbols and formulas are made available for the substances involved in chemical processes, in addition to the names. These symbols and formulas are analogous to symbol and variables used in equation of physics, like that used in Newton’s second law of motion F = ma, and provide a type of chemical shorthand that chemists have found valuable because of their convenience.  When the multipliers of reactants and products, called coefficients, in a chemical equation, are correctly given, the numbers of atoms of each element are equal on both sides of the arrow. The equation is then said to be a balanced chemical equation. We will illustrate the concept through a step-by-step procedure starting from writing & completing it to balancing of it. ...

  by  Maryam Hussain 1) How do I make 1 N sodium hydroxide? Answer: Prepare 1 M (1 molar) solution of sodium hydroxide by dissolving 40 grams of sodium hydroxide in water such that 1 liter of solution is obtained. 2) How many molecules of CO 2 are there in 0.05 mol of CO 2 ? Answer: 3.011 X 10 22 molecules 3) Is there proof that A^2 = (A+B) ^2? Answer: put B = 0, then A^2 = (A+B) ^2 4) Is 0.50 grams the mole of NH 4 OH? Answer: 35 grams represents one mole of NH 4 OH 5) If I dissolve 1kg of sugar in water and I then evaporate the solution will I get 1 kg of sugar? Answer: Since solubility is due to weak forces & heating, evaporation, for example, breaks these weak force bonds but during evaporation, some of the dissolved solute, sugar, is carried over by rising water vapors. If you recover these evaporated vapors, you can recover sugar. 6) Is mole fraction volume dependent? Answer: Yes, it is true for ideal gas because both mole & volume fract...

  by  Maryam Hussain What is an airbag? What was its need? Since it is neither viable nor it is desirable to build vehicles as strong as armor fighters, it is definitely required that the basic structures must be designed to collapse in a controlled manner in an accident . In 1951, John Hetrick, an industrial engineering technician, invented airbags. An airbag is a safety device that is usually packed in the center of the steering wheel and in the dashboard in front of the passenger seat. An airbag quickly inflates with air or with some other gas during a head-on collision & cushions a car’s occupants from the impact of the collision. Where is an airbag ergonomic display in driver panel? Whenever the ignition of the car is turned ON to the first step, then, besides other lights within the driver’s panel, the airbag light should glow ON for a short while and then go OUT. If the airbag warning light keeps on glowing, then this indicates a fault within the airba...

by  Maryam Hussain A warranty is a contract between a manufacturer/seller and a consumer w.r.t sale of a product where a manufacturer/seller takes the responsibility to rectify defects or failures of products due to inadequate design, manufacturing, and quality control problems over a certain duration of time after the sale. The seller is the interfacial person between the consumer and the manufacturer. Most of the time, the seller represents the manufacturer while dealing with the consumer. The seller also represents the consumer for the warranty claimed by the consumer. Here, a buyer is an end user or consumer , and, the term consumer will be used here. It has been experienced that upon partial or complete failure of a product, the consumer brings the product to the seller and asks for its warranty claim. Sooner during the conversation a point reaches where the consumer says “ It’s covered under warranty ”. Conversely, the seller says “ It is not covered under warranty ”...