Tag: science & technology

Questions Related to science & technology

Multiple choice general knowledge science & technology
  1. Acetic acid

  2. Capsaicin

  3. Lycopene

  4. Sulfuric Acid

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Capsaicin is the chemical compound responsible for the spicy heat sensation in chili peppers. It binds to pain receptors in the mouth and throat, creating the burning sensation. Acetic acid gives vinegar its sour taste, lycopene is a red pigment found in tomatoes, and sulfuric acid is a highly corrosive industrial chemical.

Multiple choice general knowledge science & technology
  1. Iodine

  2. Potassium Chloride

  3. Sodium Bicarbonate

  4. Sodium Chloride

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Table salt is sodium chloride (NaCl), the common salt used for seasoning and food preservation. Iodine is often added to table salt as a nutritional supplement, but it's not the salt itself. Potassium chloride is a salt substitute, and sodium bicarbonate is baking soda.

Multiple choice general knowledge science & technology
  1. Ethyl Alcohol (Ethanol)

  2. Isopropyl Alcohol (Isopropanol)

  3. Methyl Alcohol (Methanol)

  4. Propyl Alcohol (Propanol)

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ethanol (ethyl alcohol) is the type of alcohol found in alcoholic beverages like wine, beer, and vodka. Isopropyl alcohol is used as rubbing alcohol and disinfectant, methanol is toxic and causes blindness, and propanol is used in industrial applications - none are safe for consumption.

Multiple choice general knowledge science & technology
  1. Codiene

  2. Morphine

  3. Heroine

  4. Kanja Leaves

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Diamorphine hydrochloride is the chemical name for heroin, a highly addictive opioid drug. It is a white crystalline powder derived from morphine through acetylation. Heroin is an illegal drug with no legitimate medical use in most countries.

Multiple choice general knowledge science & technology
  1. axial turbine

  2. radial turbine

  3. low head

  4. high flow

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Pelton wheel turbine is a radial flow turbine, also known as a tangential flow impulse turbine. It's designed for high head, low flow applications and uses jet impact on buckets. While sometimes classified separately, it fundamentally operates on radial principles where water enters the buckets at an angle to the runner rotation.