IASbaba Daily Prelims Quiz
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The Current Affairs questions are based on sources like ‘The Hindu’, ‘Indian Express’ and ‘PIB’, which are very important sources for UPSC Prelims Exam. The questions are focused on both the concepts and facts. The topics covered here are generally different from what is being covered under ‘Daily Current Affairs/Daily News Analysis (DNA) and Daily Static Quiz’ to avoid duplication. The questions would be published from Monday to Saturday before 2 PM. One should not spend more than 10 minutes on this initiative.
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Question 1 of 5
1. Question
Q1. Consider the following statements regarding Sickle Cell Disease (SCD):
- It is a hereditary blood disorder caused by a mutation affecting hemoglobin.
- It follows an autosomal recessive pattern of inheritance.
- Individuals carrying a single sickle-cell gene invariably develop severe disease symptoms.
- Bone marrow transplantation can potentially cure the disease in selected cases.
Which of the statements given above are correct?
Correct
Q.1) Solution (a)
Explanation:
- Sickle Cell Disease is a genetic blood disorder caused by a mutation in the beta-globin gene affecting hemoglobin structure.
- It follows an autosomal recessive inheritance pattern, meaning an individual must inherit defective genes from both parents to develop the disease.
- Persons carrying only one defective gene are generally carriers (sickle-cell trait) and usually do not develop severe disease manifestations.
- Bone marrow transplantation remains the only established curative treatment for selected patients.
UPSC frequently tests concepts of inheritance, carriers, and disease versus trait distinctions, making Statement 3 the key trap.
Why this question? Tests genetics and inheritance concepts.
Why important for UPSC? Public health and tribal health focus area.
PYQ Pattern Link: Similar to genetic-disorder and inheritance questions.
Incorrect
Q.1) Solution (a)
Explanation:
- Sickle Cell Disease is a genetic blood disorder caused by a mutation in the beta-globin gene affecting hemoglobin structure.
- It follows an autosomal recessive inheritance pattern, meaning an individual must inherit defective genes from both parents to develop the disease.
- Persons carrying only one defective gene are generally carriers (sickle-cell trait) and usually do not develop severe disease manifestations.
- Bone marrow transplantation remains the only established curative treatment for selected patients.
UPSC frequently tests concepts of inheritance, carriers, and disease versus trait distinctions, making Statement 3 the key trap.
Why this question? Tests genetics and inheritance concepts.
Why important for UPSC? Public health and tribal health focus area.
PYQ Pattern Link: Similar to genetic-disorder and inheritance questions.
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Question 2 of 5
2. Question
Q2. Consider the following statements regarding Bitumen:
- It is a highly viscous hydrocarbon primarily obtained during crude oil refining.
- It acts as a binding material in flexible pavement construction.
- It is thermoplastic in nature.
- It is produced mainly through destructive distillation of coal.
Which of the statements given above are correct?
Correct
Q.2) Solution (a)
Explanation:
- Bitumen is a black, sticky, highly viscous hydrocarbon obtained mainly as a residual product during petroleum refining.
- It is extensively used as a binder in flexible pavements and exhibits thermoplastic properties, softening when heated and hardening upon cooling.
- Statement 4 is incorrect because destructive distillation of coal produces tar, not bitumen.
UPSC frequently tests distinctions between closely related industrial materials such as bitumen and tar by focusing on origin, properties, and applications.
Why this question? Tests petroleum-products knowledge.
Why important for UPSC? Infrastructure and energy-security linkage.
PYQ Pattern Link: Similar to petroleum refining by-product questions.
Incorrect
Q.2) Solution (a)
Explanation:
- Bitumen is a black, sticky, highly viscous hydrocarbon obtained mainly as a residual product during petroleum refining.
- It is extensively used as a binder in flexible pavements and exhibits thermoplastic properties, softening when heated and hardening upon cooling.
- Statement 4 is incorrect because destructive distillation of coal produces tar, not bitumen.
UPSC frequently tests distinctions between closely related industrial materials such as bitumen and tar by focusing on origin, properties, and applications.
Why this question? Tests petroleum-products knowledge.
Why important for UPSC? Infrastructure and energy-security linkage.
PYQ Pattern Link: Similar to petroleum refining by-product questions.
-
Question 3 of 5
3. Question
Q3. Consider the following statements regarding the Indian Coast Guard (ICG):
- It functions under the Ministry of Defence.
- It was established under the Coast Guard Act, 1978.
- Its motto is “Vayam Rakshamah.”
- It is a part of the Indian Navy and has no independent statutory basis.
Which of the statements given above are correct?
Correct
Q.3) Solution (d)
Explanation:
- The Indian Coast Guard functions under the Ministry of Defence and was established through the Coast Guard Act, 1978. Its motto is “Vayam Rakshamah” (We Protect).
- Statement 4 is incorrect because the Coast Guard is an independent statutory maritime force and not a branch of the Indian Navy, although both coordinate closely.
UPSC often tests institutional autonomy and administrative control of defence and security organizations.
Why this question? Tests maritime-security institutions.
Why important for UPSC? Coastal security remains highly relevant.
PYQ Pattern Link: Similar to CAPFs and defence-force questions.
Incorrect
Q.3) Solution (d)
Explanation:
- The Indian Coast Guard functions under the Ministry of Defence and was established through the Coast Guard Act, 1978. Its motto is “Vayam Rakshamah” (We Protect).
- Statement 4 is incorrect because the Coast Guard is an independent statutory maritime force and not a branch of the Indian Navy, although both coordinate closely.
UPSC often tests institutional autonomy and administrative control of defence and security organizations.
Why this question? Tests maritime-security institutions.
Why important for UPSC? Coastal security remains highly relevant.
PYQ Pattern Link: Similar to CAPFs and defence-force questions.
-
Question 4 of 5
4. Question
Q4. Consider the following statements regarding Non-Methane Hydrocarbons (NMHCs):
- They are hydrocarbon compounds excluding methane.
- They constitute a major subset of Volatile Organic Compounds (VOCs).
- They contribute to the formation of tropospheric ozone.
- They are chemically less reactive than methane.
Which of the statements given above are correct?
Correct
Q.4) Solution (d)
Explanation:
- NMHCs are atmospheric hydrocarbons excluding methane and form a significant subset of VOCs.
- They readily react with nitrogen oxides in the presence of sunlight to generate ground-level ozone and photochemical smog.
- Statement 4 is incorrect because NMHCs are generally more reactive than methane.
UPSC often tests environmental chemistry through comparisons of pollutant characteristics and atmospheric behavior.
Why this question? Tests air-pollution chemistry.
Why important for UPSC? Ozone pollution is an emerging concern.
PYQ Pattern Link: Similar to VOCs and secondary-pollutant questions.
Incorrect
Q.4) Solution (d)
Explanation:
- NMHCs are atmospheric hydrocarbons excluding methane and form a significant subset of VOCs.
- They readily react with nitrogen oxides in the presence of sunlight to generate ground-level ozone and photochemical smog.
- Statement 4 is incorrect because NMHCs are generally more reactive than methane.
UPSC often tests environmental chemistry through comparisons of pollutant characteristics and atmospheric behavior.
Why this question? Tests air-pollution chemistry.
Why important for UPSC? Ozone pollution is an emerging concern.
PYQ Pattern Link: Similar to VOCs and secondary-pollutant questions.
-
Question 5 of 5
5. Question
Q5. Consider the following statements regarding Tropospheric Ozone:
- It is a secondary pollutant.
- It is emitted directly from industrial smokestacks.
- It is formed through reactions involving NMHCs, NOx, and sunlight.
- Unlike stratospheric ozone, it is harmful to human health.
Which of the statements given above are correct?
Correct
Q.5) Solution (b)
Explanation:
- Tropospheric (ground-level) ozone is a secondary pollutant, meaning it is not emitted directly into the atmosphere.
- Instead, it forms through photochemical reactions involving nitrogen oxides (NOx), NMHCs/VOCs, and sunlight.
- Unlike stratospheric ozone, which shields Earth from harmful ultraviolet radiation, tropospheric ozone is a pollutant that damages crops, ecosystems, and human respiratory health. Statement 2 is therefore incorrect.
UPSC frequently tests the distinction between beneficial stratospheric ozone and harmful ground-level ozone.
Why this question? Tests ozone chemistry and environmental concepts.
Why important for UPSC? Frequently asked air-pollution topic.
PYQ Pattern Link: Similar to ozone-layer and photochemical-smog questions.
Incorrect
Q.5) Solution (b)
Explanation:
- Tropospheric (ground-level) ozone is a secondary pollutant, meaning it is not emitted directly into the atmosphere.
- Instead, it forms through photochemical reactions involving nitrogen oxides (NOx), NMHCs/VOCs, and sunlight.
- Unlike stratospheric ozone, which shields Earth from harmful ultraviolet radiation, tropospheric ozone is a pollutant that damages crops, ecosystems, and human respiratory health. Statement 2 is therefore incorrect.
UPSC frequently tests the distinction between beneficial stratospheric ozone and harmful ground-level ozone.
Why this question? Tests ozone chemistry and environmental concepts.
Why important for UPSC? Frequently asked air-pollution topic.
PYQ Pattern Link: Similar to ozone-layer and photochemical-smog questions.
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