Basic Elements of Science MCQs for Rajasthan SI

Practice 20 free basic elements of science multiple choice questions for Rajasthan SI exam. Instant answers, explanations in Hindi and English, and topic-wise targeted practice.

Master Basic Elements of Science under Basic Science for Rajasthan SI with our curated MCQ set. Every question is sourced from real Rajasthan exam patterns and updated regularly. Switch between Hindi and English anytime. Use this daily to strengthen weak areas before the exam.

Rajasthan SI — Basic Science — Basic Elements of Science

20 Questions • Instant results & explanations • Hindi & English

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Question 1 of 20

What is the Mechanical Advantage (MA) of a Class I lever?

Question 2 of 20

Which of the following is an alloy of Iron, Nickel, and Chromium?

Question 3 of 20

To achieve the goal of a $350 billion economy, the Rajasthan government has formulated how many 'Resolutions' (Sankalps)?

Question 4 of 20

Which Central Government scheme is credited alongside state policies for Rajasthan's solar success?

Question 5 of 20

Brass is an alloy of which two metals?

Question 6 of 20

Which liquid metal is commonly used in thermometers?

Question 7 of 20

Psychology and Sociology are classified under which branch of science?

Question 8 of 20

Which of the following statements comparing Fuse and MCB is INCORRECT?

Question 9 of 20

A cricket player pulls his hands backwards while catching a fast-moving ball. Which scientific principle explains this action?

Question 10 of 20

In a Wheelbarrow, where is the Fulcrum located?

Question 11 of 20

Consider the following statements regarding Compounds: 1. Compounds are formed when two or more elements combine chemically in a fixed ratio. 2. The properties of a compound are identical to the properties of its constituent elements. Which of the statements given above is/are correct?

Question 12 of 20

With reference to the composition of 'Gun Metal', identify the correct combination:

Question 13 of 20

Which of the following substances does NOT undergo sublimation?

Question 14 of 20

Why does water kept in an earthen pot become cool during summer?

Question 15 of 20

The report aims to help candidates with 'Answer Writing' specifically for which type of exam?

Question 16 of 20

Match the correct refractive index values: List-I (Material) List-II (Refractive Index) A. Air 1. 1.33 B. Kerosene 2. 1.0003 C. Water 3. 1.44

Question 17 of 20

Why are concave lenses used for Myopia correction?

Question 18 of 20

Identify the chemical formula for Ammonium Chloride.

Question 19 of 20

The time taken for a Fuse to blow compared to an MCB tripping is:

Question 20 of 20

Which of the following statements regarding the 'Rusting of Iron' is NOT correct?

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