Civil Services Prep

Prelims MCQ · Geography

Consider the following statements regarding seismic-wave shadow zones:

  1. Seismographs located within 105° of an epicentre record both P-waves and S-waves.
  2. The region between 105° and 145° from an epicentre is a shadow zone for both P-waves and S-waves.
  3. Beyond 145° from an epicentre, P-waves may be recorded but S-waves are not recorded.
  4. The S-wave shadow zone is confined to the band between 105° and 145°.

Which of the statements given above are correct?

  1. 1 and 4 only
  2. 2 and 3 only
  3. 1, 3 and 4 only
  4. 1, 2 and 3 only
  1. A cultivated hillside is experiencing rapid runoff and the formation of several small finger gullies. Which…
  2. A geological survey records the following intrusive bodies: Body P is thin and nearly horizontal. Body Q is…
  3. A physiographic region has the following characteristics: Its principal river flows from northeast to…
  4. A place has the following characteristics: Its underlying land surface heats rapidly during summer and cools…
  5. A soil is deep, clayey and relatively impermeable. It becomes sticky when wet, develops wide cracks during the…
  6. A stream on one side of a divide has a steeper gradient and receives more precipitation than a neighbouring…