Previous year MCQs

General science UPPSC 1996 GS-I
Question

Radar is used for:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Determining the presence and location of objects with radio wave

Detailed Solution:

The correct answer is “Determining the presence and location of objects with radio wave”.
Radar, which stands for Radio Detection and Ranging, is an electromagnetic system that uses radio waves to determine the distance, direction, and velocity of objects relative to its location.

Similar Questions:

Milk is an example of:
  1. A) Foam
  2. B) Sol
  3. C) Aerosol
  4. D) Emulsion
Match List-I with List-II and select the correct answer using the codes given below:
List I - List II

A) Kevlar - 1) Explosive
B) Taxol - 2) Synthetic fibre
C) Zink Phosphide - 3) Anticancer drug
D) Nitrocellulose - 4) Rodenticide
  1. A) A-2, B-4, C-3, D-1
  2. B) A-2, B-3, C-4, D-1
  3. C) A-4, B-3, C-1, D-2
  4. D) A-3, B-1, C-2, D-4
Which one of the following is used in food preservation?
  1. A) Sodium Carbonate
  2. B) Acetylene
  3. C) Benzoic Acid
  4. D) Sodium Chloride
Tapa cloth is obtained from the plants of which one of the following family?
  1. A) Asclepiadaceae
  2. B) Moraceae
  3. C) Graminae
  4. D) Malvaceae
When a glass rod is placed in steam, its length increases but its width:
  1. A) remains unchanged
  2. B) decreases
  3. C) increases
  4. D) becomes irregular
Consider the following statements:

Assertion (A): India's nuclear policy incorporates its unpreparedness to open its nuclear plants for international inspection.
Reason (R): India will not produce any nuclear bomb.

Select your answer from the code given below:
  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
  3. C) (A) is true and (R) is false
  4. D) (A) is false but (R) is true
The 'xylem' in plants is responsible mainly for:
  1. A) Transportation of food
  2. B) Transportation of amino acid
  3. C) Transportation of water
  4. D) Transportation of oxygen
2, 4-D is:
  1. A) an insecticide
  2. B) an explosive
  3. C) a fungicide
  4. D) a herbicide
Which one of the following human organs is less susceptible to harmful radiations?
  1. A) Eyes
  2. B) Heart
  3. C) Brain
  4. D) Lungs
In which of the following types of heat engines carburettor is used ?
  1. A) Both diesel and petrol engines
  2. B) Steam engine
  3. C) Petrol engine
  4. D) Diesel engine
A hydrophyte is:
  1. A) a marine animal
  2. B) an aquatic plant
  3. C) a plant disease
  4. D) a rootless plant
Which one of the following fertilizers leaves maximum acidity in the soil?
  1. A) Urea
  2. B) Ammonium Sulphate
  3. C) Ammonium Nitrate
  4. D) Calcium Ammonium Nitrate