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SSC CGL 2021 PYQ — Question 48

SSC CGL - 23 Aug 2021 - Shift 3 • General Awareness • Q48

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In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.
Essaouira's origins stretch back to prehistoric times, and this spot on Morocco's Atlantic
coast (1)______ a centre of culture and commerce ever since. (2)______ centuries, the harbour town was an important trading post (3)______ both a seaport and as the north-western terminus of a caravan (4)______ stretching across the desert to Timbuktu (5)______ Africa’s interior.

The lowest temperature at which a substance catches fire is called its:

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Correct answer: D

Explanation

The correct answer is option 4 i.e. ignition temperature

  • The lowest temperature at which a substance catches fire is called its ignition temperature.
  • A combustible substance cannot catch fire or burn as long as its temperature is lower than its ignition temperature.
  • The substances which have very low ignition temperature and can easily catch fire with a flame are called inflammable substances. Examples of inflammable substances are petrol, alcohol, Liquified Petroleum Gas (LPG), etc.