Tag: science & technology

Quizzes (551) Questions (11015)

Questions Related to science & technology

Multiple choice general knowledge science & technology

------ are raised features located at the bottom of the tread grooves that indicate the tire has reached its wear limit

  1. Tire

  2. Tube

  3. Wear bar

  4. Wear meter
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Wear bars (also called wear indicators) are small raised ridges in the tread grooves that become visible when tread depth reaches the legal minimum (typically 2/32 inch). When these are flush with the tread surface, the tire must be replaced. 'Tire' and 'Tube' are components, not indicators. 'Wear meter' is not the correct term.

Multiple choice general knowledge science & technology

Various tyre rates

  1. Load rating

  2. Speed rating

  3. Service rating

  4. Burst rating
Reveal answer Fill a bubble to check yourself
A,B,C Correct answer
Explanation

Load rating indicates maximum weight a tire can carry. Speed rating specifies maximum safe sustained speed. Service rating refers to the intended service type (highway, all-terrain, etc.). 'Burst rating' is not a standard tire rating - tires have load limits, not burst pressure ratings.

Multiple choice general knowledge science & technology

Who invented the Mobile phone?

  1. Captain Kirk

  2. Alexander Graham Bell

  3. Marty Cooper

  4. Carty Mooper
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Martin Cooper (Marty Cooper) invented the first handheld mobile phone at Motorola in 1973. Alexander Graham Bell invented the landline telephone, not the mobile phone. Captain Kirk is a fictional character from Star Trek, and Carty Mooper is a made-up distractor.

Multiple choice general knowledge science & technology

Creator of Blackberry ?

  1. Bill Gates

  2. Mike Lazaridis

  3. Steve Jobs

  4. Abraham Berry
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mike Lazaridis co-founded Research In Motion (RIM) and created the BlackBerry smartphone. Bill Gates founded Microsoft, Steve Jobs co-founded Apple, and Abraham Berry is a fictional distractor name.

Multiple choice general knowledge science & technology

Creator of Apple Ipod ?

  1. None of these

  2. Tony Faddel

  3. Steve Jobs

  4. Sony got it first
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tony Fadell (misspelled as 'Faddel') led the iPod development team at Apple, though Steve Jobs announced and marketed it. The iPod was developed internally by Apple, not Sony. 'None of these' is incorrect because Tony Fadell is indeed the right answer.