Previous year MCQs

General science UPPSC 2020 GS-I
Question

Which of the following substances is obtained from a tree ?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Asafoetida

Detailed Solution:

The correct answer is “Asafoetida”.
Asafoetida (also known as hing) is obtained from a tree. It is a gum-like substance extracted from the resin of the Ferula plant, which is a type of tree.

Similar Questions:

Match List-I with List-II and select the correct answer using the codes given below:
List I - List II

A) Diwan-i-Tan - 1) Look after the office
B) Mustarfi - 2) Maintained proper list of main events and firmans.
C) Mushrif - 3) Look after the jagirs and salary.
D) Vakianvis - 4) Examine income expenditure of state.
  1. A) A-2, B-4, C-1, D-3
  2. B) A-3, B-4, C-1, D-2
  3. C) A-1, B-3, C-2, D-4
  4. D) A-4, B-1, C-2, D-3
Radar is used for:
  1. A) Detecting objects by using light waves
  2. B) Reflecting sound waves to detect objects
  3. C) Determining the presence and location of objects with radio wave
  4. D) Tracking rain-bearing clouds
Which color combination is best suited for umbrella to protect from sunlight (stinter)?
  1. A) White on the upper and black in the inner side
  2. B) Black on the upper and white in the inner side
  3. C) Only black
  4. D) Only white
In cold countries alcohol is preferred to mercury as a thermometric liquid because:
  1. A) alcohol has a lower freezing point
  2. B) alcohol is a better conductor of heat
  3. C) alcohol is cheaper than mercury
  4. D) the world production of alcohol is greater than that of mercury
The instrument used to measure the blood pressure is:
  1. A) Tachometer
  2. B) Sphygmomanometer
  3. C) Actiometer
  4. D) Barometer
The important metal used with iron to produce stainless steel, is:
  1. A) Aluminium
  2. B) Chromium
  3. C) Tin
  4. D) Carbon
Consider the following statements:

Assertion (A): If Ice collects on the freeze the cooling in the refrigerator is affected adversely.
Reason (R) : Ice is a poor conductor.

Select the correct answer using the codes given below:
Codes:
  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.
In which of the following industries is mica used as a raw material?
  1. A) Iron and Steel
  2. B) Toys
  3. C) Glass and Pottery
  4. D) Electrical
An enzyme which helps in the digestion of protein is
  1. A) Urease
  2. B) Ssulfatase
  3. C) Trypsin
  4. D) Protease
Which of the following ocean currents is associated with Indian Ocean ?
  1. A) Florida current
  2. B) Canary current
  3. C) Agulhas current
  4. D) Kurile current
Which of the following food materials contains all essential amino acids?
  1. A) Rice
  2. B) Milk
  3. C) Wheat
  4. D) Soyabean
What is the source of electric energy in an artificial satellite?
  1. A) Thermopile
  2. B) Solar cells
  3. C) Dynamo
  4. D) Mini nuclear reactor