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Daily-mcqs 11 Jun 2025
Q1:
Which one of the following best describes the strategic value of I-STAR aircraft for India? Options:
A: They provide long-range cargo airlift during disaster relief.
B: They ensure India’s participation in international air patrol missions.
C: They enable precise surveillance and targeting without entering enemy airspace.
D: They are used primarily for training pilots in combat flying.
Answer: C
Explanation:
The I-STAR aircraft's main value lies in their ability to conduct stand-off ISR—gathering real-time battlefield data and coordinating strikes without violating enemy airspace. This reduces the risk of escalation, ensures safety, and supports surgical operations. They are not meant for airlift, training, or global patrols but serve strategic military surveillance roles.
Q2:
With reference to cryptobiosis in organisms, consider the following statements: 1. Cryptobiosis is a survival strategy where metabolic activity comes to a near-complete halt. 2. It helps organisms survive extreme environmental conditions like radiation, desiccation, and vacuum. 3. All organisms that enter cryptobiosis require oxygen to maintain this state. Which of the statements given above is/are correct?
A: 1 and 2 only
B: 1 and 3 only
C: 2 and 3 only
D: 1, 2, and 3
Answer: A
Explanation:
Cryptobiosis is a unique survival state where an organism's metabolism nearly stops, allowing it to survive extreme environmental stress like desiccation, radiation, extreme temperatures, and even the vacuum of space. Tardigrades are famous for entering this state by transforming into a "tun" form. In this condition, they do not rely on oxygen, nutrients, or water, which is why statement 3 is incorrect. However, statements 1 and 2 are correct, as cryptobiosis is well-documented for helping certain microorganisms and micro-animals survive otherwise fatal environments. This ability has important applications for space research, biopreservation, and understanding life's resilience.
Q3:
Reason (R): They can repair their DNA and survive in a vacuum without permanent damage.
Consider the following Assertion/ Reason and choose the correct option:
Assertion (A): Tardigrades are considered ideal models for space biology experiments.
A: Both A and R are true, and R is the correct explanation of A.
B: Both A and R are true, but R is not the correct explanation of A.
C: A is true, but R is false.
D: A is false, but R is true.
Answer: A
Explanation:
Tardigrades are excellent candidates for studying life in space because they can survive conditions that would kill most other organisms—extreme radiation, vacuum, and dehydration. The reason they are ideal models is directly linked to their ability to halt metabolism, enter a protective tun state, and repair cellular damage, including DNA breaks. This makes them biologically unique and valuable for space-based biological research. Thus, both the assertion and the reason are correct, and R explains A accurately.
Q4:
Consider the following statements about the Poson Poya festival: 1. It commemorates the first sermon of the Buddha in India. 2. It marks the arrival of Arahat Mahinda in Sri Lanka. 3. It is celebrated during the June full moon. Which of the above statements are correct?
A: 1 and 2 only
B: 2 and 3 only
C: Only 1 and 3
D: 1, 2, and 3
Answer: B
Explanation:
Poson Poya celebrates the arrival of Arahat Mahinda in Sri Lanka and the first sermon he delivered to King Devanampiyatissa at Mihintale. This event marked the formal introduction of Buddhism to the island. It is observed on the June full moon. Statement 1 is incorrect because it confuses Poson Poya with the Buddha’s first sermon in India (Sarnath). The correct focus of Poson Poya is the transmission of Buddhism to Sri Lanka.
Q5:
Consider the following pairs of Buddhist sects and their features: Sect Feature 1. Theravada Focuses on rituals and esoteric practices 2. Mahayana Promotes Bodhisattva ideal and universal salvation 3. Vajrayana Uses tantric rituals and mantras 4. Navayana Modern, socially engaged Buddhism How many of the above pairs are correctly matched?
A: Only 1
B: Only 2
C: Only 3
D: All four
Answer: C
Explanation:
Theravada is incorrectly matched — it emphasizes monastic discipline and personal enlightenment, not rituals or esoteric practices. Mahayana (2), Vajrayana (3), and Navayana (4) are correctly matched. Mahayana promotes the Bodhisattva path for universal salvation. Vajrayana uses esoteric methods, including rituals and mantras. Navayana, as modernised by B.R. Ambedkar, is a reinterpretation focused on equality and social justice.
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