RAS — Basic Elements of Science MCQs
Practice 20 free basic elements of science multiple choice questions for RAS exam. Instant answers with explanations in Hindi and English.
Master Basic Elements of Science under Basic Science for RAS with our curated MCQ set. Every question follows real Rajasthan exam patterns. Switch between Hindi and English anytime.
RAS — Basic Science — Basic Elements of Science
20 Questions • Instant results & explanations • Hindi & English
0 / 20
Question 1 of 20
Why are Bifacial PV Modules preferred in projects like Nokh Solar Park situated in desert areas?
Question 2 of 20
The 'Auroras' (Northern/Southern Lights) are a natural phenomenon associated with which state of matter?
Question 3 of 20
What happens to the kinetic energy of particles when a substance moves from Solid to Gas state?
Question 4 of 20
Arrange the following elements in descending order of their abundance in the human body: 1. Carbon 2. Oxygen 3. Nitrogen 4. Hydrogen
Question 5 of 20
What is the exact annual revenue contribution of Nokh Solar Park to the state exchequer?
Question 6 of 20
The refractive index of Crown Glass is 1.52. This means light travels in Crown Glass:
Question 7 of 20
Which two industries are cited as the primary sources of pollution in the Luni river basin?
Question 8 of 20
Which of the following correctly orders the states of matter based on the kinetic energy of their particles (from lowest to highest)?
Question 9 of 20
Which of the following states of matter has the strongest intermolecular attraction?
Question 10 of 20
Identify the incorrect pair regarding the properties of matter changes:
Question 11 of 20
What is the common characteristic of 'Tongs' and 'Human Forearm'?
Question 12 of 20
The time of impact is increased to reduce the force. This application is based on:
Question 13 of 20
Match List-I (Isotopes) with List-II (Uses) and select the correct answer using the codes given below: List-I A. Uranium-235 B. Cobalt-60 C. Iodine-131 D. Carbon-14 List-II 1. Treatment of Goiter 2. Fuel in Nuclear Reactors 3. Determination of age of fossils 4. Treatment of Cancer
Question 14 of 20
Assertion (A): The Bhadla Solar Park is visible from space. Reason (R): It covers a vast area of 14,000 acres in the desert.
Question 15 of 20
Which of the following is NOT mentioned as a threat to the Sambhar Lake ecosystem?
Question 16 of 20
The development of forestry techniques for arid and semi-arid regions and desert plantation is the main function of:
Question 17 of 20
Which of the following substances does NOT undergo sublimation?
Question 18 of 20
Wireless communication technologies like mobile phones primarily utilize:
Question 19 of 20
The principle of operation of a traditional electrical 'Fuse' is based on:
Question 20 of 20
Which method is commonly used to separate different gases (like Oxygen, Nitrogen, Argon) from air?
More Basic Science Subtopics
Practice other subtopics under Basic Science to strengthen your RAS preparation.