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Daily-mcqs 30 May 2025
Q1:
In which part of the immune system do TR1 cells function?
A: Innate immunity
B: Adaptive immunity
C: Nervous system
D: Endocrine system
Answer: B
Explanation:
TR1 cells are part of the adaptive immune system, which develops targeted responses and immune memory after exposure to specific pathogens like malaria. They are a subtype of CD4+ helper T cells, essential in fine-tuning the immune reaction and are now recognized as key players in reinfection defense mechanisms.
Q2:
With reference to the E-Hansa aircraft, consider the following statements: 1. It is powered entirely by battery-electric propulsion. 2. It features a bubble canopy and an advanced glass cockpit. 3. It supports training for both Private Pilot License (PPL) and Commercial Pilot License (CPL). 4. It is indigenously developed under the HANSA-3 NG programme. How many of the above statements are correct?
A: Only one
B: Only two
C: Only three
D: All four
Answer: C
Explanation:
Statement 1 is incorrect — the E-Hansa is part of a green aviation initiative but is not described as entirely battery-electric; it uses the Rotax 912 iSc3 Sport Engine, a fuel-efficient internal combustion engine. Statements 2, 3, and 4 are correct: it features an advanced glass cockpit, a bubble canopy, is meant for PPL and CPL training, and is indigenously developed under the HANSA-3 NG programme.
Q3:
Which of the following best explains why the Madden-Julian Oscillation (MJO) is important for monsoon forecasting in India?
A: It triggers underwater earthquakes that affect rainfall patterns.
B: It influences seasonal jet stream flow across the mid-latitudes.
C: It causes sea-level rise in the Bay of Bengal.
D: It modulates intra-seasonal rainfall variability and can accelerate monsoon onset.
Answer: D
Explanation:
The MJO is an eastward-moving system of winds and convection that influences rainfall and storm formation. It plays a major role in intra-seasonal variability, especially within the tropical belt (30°N–30°S). A strong active phase over the Indian Ocean can advance the monsoon, as seen in May 2024, and is crucial for sub-seasonal forecast models.
Q4:
With reference to the Modified Interest Subvention Scheme (MISS), consider the following statements: 1. The scheme provides 1.5% interest subvention to farmers repaying loans promptly. 2. The effective interest rate for prompt repayment can go as low as 4%. 3. The scheme applies to loan amounts up to ₹3 lakh for agriculture and ₹2 lakh for animal husbandry/fisheries. 4. Only Public Sector Banks are eligible to implement the scheme. How many of the above statements are correct?
A: Only one
B: Only two
C: Only three
D: All four
Answer: C
Explanation:
Statements 2 and 3 are correct. Prompt repayment offers a 3% incentive, reducing the interest rate to 4%, and the loan cap is ₹3 lakh for agriculture, ₹2 lakh for allied sectors. Statement 1 is incorrect—1.5% interest subvention is given to banks, not farmers. Statement 4 is also incorrect—Private Banks, Small Finance Banks, and PACS are also eligible to implement the scheme.
Q5:
The 'Seven Summits' challenge, which was in the news recently, is related to what?
A: International Scientific Research Program
B: Seven most difficult trekking routes of mountaineering
C: Journey to the seven highest waterfalls of the world
D: Climbing the highest peaks of seven continents
Answer: D
Explanation:
The 'Seven Summits' challenge is a prestigious achievement in mountaineering, in which the mountaineer has to climb the highest peaks of all the seven continents of the earth. Recently, 16-year-old Vishwanath Karthikeya Padakanti has created history by completing this challenge.
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