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Free Science & Tech MCQs for RAS

Practice 20 free Science & Tech multiple choice questions for RAS exam. Instant answers with explanations in Hindi and English.

Strengthen your Science & Tech knowledge with focused MCQ practice. Every question is sourced from real Rajasthan exam patterns. Switch between Hindi and English, review explanations, and track your progress.

RAS — Science & Tech

20 Questions • Instant results & explanations • Hindi & English

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Question 1 of 20

ISRO launched 104 satellites in a single mission in 2017 using which launch vehicle?

Question 2 of 20

Consider the following statements regarding the technological impact of agricultural drones: 1. They drastically reduce the total volume of water and chemicals required. 2. They contribute to preventing groundwater contamination by avoiding excessive soil toxicity. Which of the statements given above is/are correct?

Question 3 of 20

What is the primary indicator that a substance is chemically basic when tested with litmus paper?

Question 4 of 20

Assertion (A): Viral Hepatitis C poses a distinct and severe threat to global public health compared to Hepatitis A and B. Reason (R): Unlike Hepatitis A and B, there is currently no approved vaccine available to prevent Hepatitis C infection, and it frequently progresses to chronic liver disease. Select the correct answer from the codes given below:

Question 5 of 20

Prior to the 2026-27 Strategic Expansion, what is the current baseline capacity for daily milk procurement in Rajasthan?

Question 6 of 20

Potential Difference (Voltage, V) between two distinct points in an electric field is fundamentally defined as:

Question 7 of 20

What is 'Android'?

Question 8 of 20

What is the primary role of the RCDF in Rajasthan's economy?

Question 9 of 20

Assertion (A): The Single Sign-On (SSO) system is vulnerable because a single password compromise grants access to all portals. Reason (R): SSO completely bypasses the Bhamashah State Data Centre security protocols to increase user speed.

Question 10 of 20

The Sambhar Salt Lake, a major geographical hallmark of Rajasthan, produces an alkaline brine rich in various salts. Which of the following compounds is NOT explicitly mentioned as a component of this rich brine?

Question 11 of 20

What is the 'Internet of Things' (IoT)?

Question 12 of 20

Modern global telecommunications rely heavily on underground optical fibers to transmit massive amounts of internet data at the speed of light. Which of the following strict optical conditions is an absolute scientific prerequisite for these fibers to function successfully?

Question 13 of 20

If a biochemist is analyzing a naturally occurring disaccharide that yields exactly one molecule of glucose and one molecule of fructose upon hydrolysis, which specific sugar is being analyzed?

Question 14 of 20

Advanced assessments often delve into 'Polymers' due to their massive industrial relevance. By strict chemical definition, the foundational units and long chains of standard commercial polymers dictate that their primary study belongs to:

Question 15 of 20

Which of the following is NOT a payload on the Aditya L-1 mission?

Question 16 of 20

Consider the following statements regarding 'IN-SPACE': I. It was established in June 2020 under the Department of Space. II. It is an autonomous agency aimed at promoting private sector participation in space activities. III. It acts as a marketing arm for ISRO's commercial launches. Which of the statements given above is/are correct?

Question 17 of 20

Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Turner syndrome occurs exclusively in females and causes infertility. Reason (R): It is caused by the addition of an extra X chromosome resulting in a 47, XXY configuration. In the context of the above statements, which of the following is correct?

Question 18 of 20

Which of the following is correct regarding 'Nucleases'?

Question 19 of 20

Which critical biological process relies almost exclusively on the continuous supply of glucose as its primary fuel to generate metabolic energy (ATP) for cells?

Question 20 of 20

Consider the following statements regarding the Rajasthan AI/ML Policy: 1. It is a Central Government scheme implemented uniformly across all Indian states. 2. It is a state-specific policy slated for the year 2026. Which of the statements given above is/are correct?

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