Q5821. Covaxin was developed by Bharat Biotech in close collaboration with which of the following apex research institutions of India?
RAS Prelims MCQ Practice
9,654 RAS Prelims practice MCQs with the correct answer and a clear explanation for each. Filter by subject and chapter.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
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Q5822. Match List-I (Lakes/Reservoirs) with List-II (Associated Forts/Palaces) and select the correct answer.
| Lakes/Reservoirs | Associated Forts/Palaces |
|---|---|
| A. Maota Lake | i. Mehrangarh Fort |
| B. Gaumukh Kund | ii. Amber Fort |
| C. Ranisar and Padamsar | iii. Jaisalmer Fort |
| D. Gadsisar Lake | iv. Chittorgarh Fort |
Explanation
Maota Lake belongs to Amber, Gaumukh Kund to Chittorgarh, Ranisar and Padamsar to Mehrangarh and Gadsisar to Jaisalmer. This gives A-ii, B-iv, C-i, D-iii.
Q5823. Which of the following statements correctly identifies an advantage of the Covaxin platform during the pandemic?
Explanation
One of the major advantages of Covaxin during the global rollout was its ease of storage and transport. Unlike mRNA vaccines that require extremely cold temperatures, Covaxin remains stable at standard refrigerator temperatures of 2-8°C. This made it highly suitable for India’s existing immunization infrastructure, allowing for easier distribution to remote rural areas without the need for specialized ultra-cold storage equipment.
Q5824. The Nathdwara temple is highly revered for the ‘Darshan’ system. How many times a day are the temple doors traditionally opened for devotees to view Shrinathji?
Explanation
The doors of the Shrinathji temple at Nathdwara are opened eight times a day for darshan, matching the eight daily periods of worship in the Pushti Marg.
Q5825. Identify the correct pair matching the Indian COVID-19 vaccine with its manufacturing company.
Explanation
India’s vaccine landscape involves several different companies and technologies.
Q5826. What was the central architectural innovation of the ‘Gumbad’ (dome) in Rajasthani architecture when adapting Islamic designs into Rajput structures?
Explanation
Rajasthani builders adapting Islamic domes replaced the true arch with the corbelled dome, in which stone courses are laid in overlapping rings. This suited local stone construction and became the standard dome form in Rajput buildings.
Q5827. The Kirti Stambh in Chittorgarh is a seven-storied pillar constructed by a Jain merchant named:
Explanation
The Kirti Stambh of Chittorgarh is a seven-storied tower built by Jija Bhargava, a Jain merchant. Dharna Shah is the patron of Ranakpur and Vimal Shah of the Dilwara temples.
Q5828. Which of the following is an exception to the general advantages of whole-virion inactivated vaccines like Covaxin?
Explanation
Whole-virion inactivated vaccines have several advantages, including a proven safety record and the ability to present multiple viral proteins to the immune system. However, their manufacturing process is relatively slow and complex compared to mRNA vaccines. They require growing large batches of the live virus in specialized biocontainment facilities, a process that takes significantly longer than synthesizing a genetic sequence.
Q5829. Which distinctive architectural feature of Jaisalmer Fort consists of 99 bastions built to provide structural support and defense?
Explanation
The 99 bastions (burj) of Jaisalmer Fort give the walls strength and are used for defence. They are the distinctive feature of the fort, not its gates or zenana palaces.
Q5830. What was the specific physiological effect of adding the Toll-like receptor 7/8 (TLR7/8) agonist to the Covaxin formulation?
Explanation
The inclusion of a TLR7/8 agonist in Covaxin was a strategic scientific choice to improve the vaccine’s efficacy. This specific component helps direct the immune system toward a Th1- biased response, which is particularly effective at fighting viral infections. This type of response ensures that the body produces the right kinds of cells and antibodies needed to neutralize the virus and clear infected cells.Answer key for these questions
| Q | Correct answer |
|---|---|
| 5821 | (c) Indian Council of Medical Research (ICMR) and National Institute of Virology (NIV) |
| 5822 | (a) A-ii, B-iv, C-i, D-iii |
| 5823 | (d) Inactivated vaccines store at standard 2-8°C refrigerator temperatures. |
| 5824 | (a) Eight times |
| 5825 | (a) Corbevax - Biological E |
| 5826 | (b) Replacing the traditional arched construction with a specialized corbelled dome structure. |
| 5827 | (b) Jija Bhargava |
| 5828 | (b) They can be manufactured in a matter of days simply by synthesizing the genetic sequence. |
| 5829 | (a) The Burj (Bastions) |
| 5830 | (a) It induced a strong Th1-biased immune response, necessary for effective clearance of intracellular viral infections. |
Frequently asked questions
How many RAS Prelims practice MCQs are there on RAS Prelims?
This page has 9654 practice MCQs on the RAS Prelims syllabus. Each has the correct answer, and most have an explanation.
How should I practise MCQs for RAS Prelims?
Attempt each question first, then open the answer and read the explanation. Practise one chapter at a time, note the facts you got wrong and revise them. Repeat the chapter after a few days.
Are these actual RAS Prelims past-paper questions?
No. These are practice questions written for the RAS Prelims syllabus. They follow the pattern the exam uses: factual questions, statement-based questions, match-the-list and assertion-reason.