Tag: science & technology

Questions Related to science & technology

Multiple choice general knowledge science & technology
  1. Buoyancy

  2. Viscocity

  3. Capillarity

  4. Surface tension

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

Surface tension is the correct phenomenon that allows mosquitoes to float on water. The small mass of mosquitoes distributes their weight over the water's surface without breaking the surface tension film. Buoyancy applies to objects submerged or partially submerged in fluid, while capillarity involves liquid movement in narrow spaces.

Multiple choice general knowledge science & technology
  1. Liquid Mercury

  2. Water

  3. Liquid nitrogen

  4. Mineral oil

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

Water is unique among common liquids in that it expands when freezing. This occurs because water molecules form a hexagonal crystal structure in ice that takes up more space than liquid water. This anomalous property is why ice floats and is crucial for aquatic life survival. Most other liquids contract when they freeze.

Multiple choice general knowledge science & technology
  1. Buoyancy

  2. Viscocity

  3. Capillarity

  4. Surface tension

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

Surface tension is the correct phenomenon that allows mosquitoes to float on water. The small mass of mosquitoes distributes their weight over the water's surface without breaking the surface tension film. Buoyancy applies to objects submerged or partially submerged in fluid, while capillarity involves liquid movement in narrow spaces.

Multiple choice general knowledge science & technology
  1. Liquid Mercury

  2. Water

  3. Liquid nitrogen

  4. Mineral oil

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

Water is unique among common liquids in that it expands when freezing. This occurs because water molecules form a hexagonal crystal structure in ice that takes up more space than liquid water. This anomalous property is why ice floats and is crucial for aquatic life survival. Most other liquids contract when they freeze.

Multiple choice general knowledge science & technology
  1. Koala Bears

  2. Cats

  3. Squirrel

  4. Parrots

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

Koala bears are one of the few non-primate mammals that have fingerprints. Their fingerprints are so similar to human fingerprints that they can be confused with them even under electron microscopy. Cats, squirrels, and parrots do not have fingerprints in the same anatomical sense.

Multiple choice general knowledge science & technology
  1. IBM

  2. HP

  3. American Express Technologies

  4. Xansa

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

IBM has a documented history of workforce diversity initiatives dating back to World War I when it hired disabled veterans. The company has been consistently recognized for workplace diversity and family-friendly policies. HP was also progressive but IBM's diversity programs specifically began during WWI as stated. American Express Technologies and Xansa are not associated with this specific historical achievement.

Multiple choice general knowledge science & technology
  1. Buoyancy

  2. Viscocity

  3. Capillarity

  4. Surface tension

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

Surface tension allows the surface of water to act like a thin elastic sheet. Because mosquitoes are very light, their weight is not enough to break the cohesive forces between water molecules, allowing them to stand or float on the surface.

Multiple choice general knowledge science & technology
  1. Blue Promise

  2. HP Way

  3. GE Method

  4. Microsoft method

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

The 'HP Way' is the famous management philosophy developed by Hewlett-Packard founders Bill Hewlett and Dave Packard. The quote in the question accurately describes the HP Way's core principles: respect for individuals, commitment to quality, community responsibility, and contributing to humanity through technology. 'Blue Promise' and 'Microsoft method' are not recognized management philosophies, and GE's approach is different.

Multiple choice general knowledge science & technology
  1. Koala Bears

  2. Cats

  3. Squirrel

  4. Parrots

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

Koala bears have fingerprints remarkably similar to human fingerprints, with distinct patterns of ridges and whorls. This is an evolutionary adaptation for gripping eucalyptus branches while climbing. Cats have paw pads with different patterns, squirrels have non-finger grip pads, and parrots have scaled feet without fingerprints.