Untitled Quiz

The unit of measurement for the brightness of a point source.

The flow of light, measured in lumens.

The amount of light that reaches a surface. Measured in lux.

The amount of light that a surface reflects back.

The minimum amount of illumination required for satisfactory vision.

The integral flow of sunlight, including UV rays, visible light, and infrared rays.

The biological importance of the sun rays are to stimulate body activity, increase metabolism processes, carry out vision functions, and have an erythemic effect (redness).

The effect of infrared rays on the human body include increase in skin heat, higher body temperature, widened skin capillaries, increased metabolism, and bactericidal effects.

These are chemical compounds that contribute to the taste of food. They are detected by taste buds on the tongue.

These are substances that are not naturally found in food and can have negative effects on health. They can be present in low amounts, similar to pollutants.

These are the goals of promoting healthy eating habits and ensuring food safety and nutritional value.

Nutrition should be tailored to individual needs, taking into account health status, physical activity, and other factors.

Rational food intake should be based on individual needs, taking into account age, activity level, and health conditions.

The concentration of some metals in food is regulated to ensure safety and prevent health risks.

These macronutrients provide the body with energy for various functions.

These are the amino acids that are essential for human health and cannot be produced by the body, thus requiring intake through food.

The most potent form of Vitamin A is Vitamin A1.

Hypervitaminosis A features include alopecia (hair loss), anorexia (loss of appetite), and pseudotumor cerebri (brain swelling).

The recommended daily intake of iodine is 150 micrograms.

Iodized salt in India contains a 1 in 40,000 concentration of iodine.

The total amount of iodine in the human body is approximately 50 milligrams.

About 90% of the total body iodine is stored in the thyroid gland.

Eggs are a good source of various vitamins, but they lack Vitamin C (ascorbic acid).

The recommended daily allowance of Thiamine is 0.5 milligrams per 1000 kilocalories.

Guinea worm disease is most common in areas with step wells, which are open wells with steps leading down to the water. This type of well lacks a covering, increasing the risk of contamination by guinea worm larvae.

Sanitary wells should be located at least 50 feet away from potential sources of contamination, like sewage lines or septic tanks. This prevents bacteria and harmful substances from contaminating the well water.

A sanitary well should have a parapet (a wall or fence around the well), a drain to remove excess water, and a platform around the well for safety. It should also have a proper cover to keep contaminants out.

Permanent hardness in water is caused by dissolved minerals like magnesium chloride, magnesium sulfate, and magnesium nitrate. These minerals cannot be removed by boiling.

Soft water has a low level of hardness, typically less than 1 mEq/liter. This means it contains fewer dissolved minerals, making it easier to use with soap.

Hard water is considered hard when it has a hardness level between 3 and 6 mEq/liter. This means it contains a significant amount of dissolved minerals, which can cause problems like scale buildup in pipes.

The Permutit process is used to remove both temporary and permanent hardness from water. It involves using a special material, called a zeolite, to exchange the hardness-causing minerals with sodium ions.

The base exchange process, also known as the ion exchange process, is highly effective in softening water to near zero hardness. It involves using a resin material to exchange the hardness-causing ions with sodium ions.

The process of killing harmful microorganisms in milk by heating it to a specific temperature for a set time.

The time between exposure to a pathogen and the onset of symptoms.

A food poisoning caused by the bacterium Salmonella, commonly found in poultry, eggs, and dairy products.

A food poisoning caused by the bacterium Staphylococcus aureus, often found in contaminated meat, eggs, and dairy products.

A severe food poisoning caused by the bacterium Clostridium botulinum, commonly found in improperly canned foods.

A chemical used to treat Botulism.

A test to detect the presence of Argemone oil, a poisonous substance that can contaminate food.

A test to measure the quality of milk based on the ability of bacteria to reduce methylene blue dye.

A common occupational disease caused by prolonged exposure to lead, often found in industries like painting, battery manufacturing, and plumbing. It can cause various health issues like anemia, neurological problems, and kidney damage.

A serious lung disease caused by inhaling asbestos fibers, commonly found in construction, shipbuilding, and manufacturing. It can lead to lung cancer, mesothelioma, and other respiratory problems.

A type of cancer that affects the bladder, often linked to exposure to certain chemicals in industries like dye manufacturing, rubber production, and metalworking.

A common occupational disease caused by inhaling silica dust, prevalent in industries like mining, quarrying, and sandblasting. It causes inflammation and scarring in the lungs, leading to breathing problems and other complications.

A disease causing inflammation of the skin, often caused by contact with irritants or allergens in the workplace. It's common in industries like agriculture, healthcare, and manufacturing.

A serious bacterial infection that primarily affects the respiratory system. It's found in animals like horses and can be transmitted to humans, particularly in industries involving animal handling.

A bacterial infection that affects animals, primarily cows and goats, and can be transmitted to humans through contact with infected animals, their products, or contaminated material. Commonly found in agriculture and animal industries.

A serious bacterial infection that affects animals, particularly sheep, goats, and cattle. It can be transmitted to humans through contact with infected animals, their products, or contaminated material. Common in agricultural and animal industries.