Previous year MCQs

General science UPPSC 2008 GS-I
Question

In which of the following conditions wet clothes will dry earliest?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: 20% RH, 60° C temperature

Detailed Solution:

The correct answer is “20% RH, 60° C temperature”.
Low relative humidity (RH) and high temperature both promote faster evaporation of moisture.

Similar Questions:

In human body vitamin A is stored in:
  1. A) Liver
  2. B) Pancreas
  3. C) Spleen
  4. D) Stomach
The blood glucose level is commonly expressed as ?
  1. A) MM of Hg
  2. B) Milligram per decilitre
  3. C) Parts per million
  4. D) Gram per litre
Photosynthesis using the invisible part of the sunlight is done by some
  1. A) Trees
  2. B) Algae
  3. C) Bacteria
  4. D) Fungi
Normal temperature of human body is 98.4°F. Its equivalent temperature in °C is:
  1. A) 40.16
  2. B) 36.89
  3. C) 35.72
  4. D) 32.36
What happens when some charge is placed on a soap bubble ?
  1. A) Its radius increases
  2. B) Its radius decreases
  3. C) The bubble collapses
  4. D) None of the above
Which one of the following Noble Gases is not present in air?
  1. A) Helium
  2. B) Argon
  3. C) Radon
  4. D) Neon
The best source of Vitamin C is:
  1. A) Apple
  2. B) Mango
  3. C) Amla
  4. D) Milk
Keeping pigs away from the human habitat is helpful in eradication of:
  1. A) Malaria
  2. B) Japanese encephalitis
  3. C) Elephantiasis
  4. D) Polio
Which one of the following pairs is not correctly matched?
Hormone - Function
  1. A) Insulin - Regulation of blood glucose
  2. B) Melatonin - Regulation of sleep
  3. C) Oxytocin - Release of milk from mammary glands
  4. D) Gastrin - Regulation of blood pressure
Which one of the following is not correctly matched:
  1. A) ginger–rhizome
  2. B) saffron–seeds
  3. C) opium–poppy of opium
  4. D) flax–stem
White colour of milk is due to the presence of
  1. A) lactose
  2. B) albumins
  3. C) carotenes
  4. D) caseins
Assertion (A): Lighting a candle in space does not produce a flame.
Reason (R): A flame exists due to the pull of gravity.

In the context of the above, which one of the following is correct?
  1. A) Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. B) Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  3. C) A) is true, but (R) is false.
  4. D) (A) is false, but (R) is true.