Q3251. According to food packaging and labeling regulations in India, the nutritional information per 100g/100ml must mandatorily include all EXCEPT:
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.
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Q3252. The process by which white blood cells engulf and destroy invading bacteria is termed:
Explanation
Phagocytosis is a critical process in innate immunity where specialized white blood cells, such as macrophages and neutrophils, identify and ingest foreign particles like bacteria or dead cells. After engulfing the pathogen into a vesicle, the cell uses digestive enzymes to break it down and neutralize the threat. this fundamental mechanism protects the body from infection and helps clear away cellular debris during the healing process.
Q3253. Consider the following statements about communicable diseases:
I. Syphilis is a sexually transmitted viral disease.
II. Hepatitis B is transmitted through infected blood and body fluids.
III. Tetanus is caused by a neurotoxin produced by a bacterium.
IV. Influenza is caused by a virus.
Which of the above statement(s) is/are correct?
I. Syphilis is a sexually transmitted viral disease.
II. Hepatitis B is transmitted through infected blood and body fluids.
III. Tetanus is caused by a neurotoxin produced by a bacterium.
IV. Influenza is caused by a virus.
Which of the above statement(s) is/are correct?
Explanation
Hepatitis B is a viral infection transmitted through contact with infected blood or body fluids, and tetanus is caused by a neurotoxin from the bacterium Clostridium tetani. Influenza is another common viral disease. However, syphilis is a sexually transmitted infection caused by a bacterium, not a virus. Recognizing the specific type of pathogen is essential for effective disease prevention, diagnosis, and clinical management.
Q3254. Which of the following symptoms is highly characteristic of Dengue fever?
Explanation
Dengue fever is often referred to as "breakbone fever" because of the intense and debilitating joint and muscle pain it causes. This symptom, along with high fever, severe headache, and a characteristic skin rash, is highly typical of the infection. While most cases are self-limiting, some can progress to more severe forms, such as dengue hemorrhagic fever, requiring urgent medical care and monitoring.
Q3255. Tuberculosis most commonly affects the lungs. When TB bacilli spread to organs other than the lungs, it is termed:
Explanation
While tuberculosis most commonly affects the lungs, the bacteria can spread through the blood or lymphatic system to other parts of the body. When the disease occurs in organs like the lymph nodes, kidneys, bones, or brain, it is termed extrapulmonary tuberculosis. This form of the disease is more common in individuals with weakened immune systems and may require different diagnostic approaches than pulmonary tuberculosis.
Q3256. The female Anopheles mosquito requires a human blood meal primarily to:
Explanation
Female Anopheles mosquitoes require a human or animal blood meal to obtain the necessary proteins and nutrients for the development and maturation of their eggs. Male mosquitoes, on the other hand, do not bite and instead feed primarily on plant nectar for energy. This biological requirement for blood by the female is what makes her the vector for transmitting the malaria parasite between human hosts.
Q3257. Match List I with List II and select the correct answer:
| Mineral | Key Function/Deficiency effect |
|---|---|
| A. Iron | i. Synthesis of thyroid hormones |
| B. Calcium | ii. Formation of haemoglobin |
| C. Iodine | iii. Normal immune function and wound healing |
| D. Zinc | iv. Bone and teeth formation |
Explanation
Iron is essential for the formation of haemoglobin, which transports oxygen in the blood. Calcium is vital for the structural integrity of bones and teeth. Iodine is required for the synthesis of thyroid hormones that regulate metabolism. Zinc plays a crucial role in normal immune function and wound healing. Each of these minerals is indispensable for maintaining various physiological processes and overall health.
Q3258. The primary cause of Type 2 Diabetes is generally attributed to:
Explanation
Type 2 diabetes is primarily characterized by insulin resistance, a condition where the body’s cells do not respond properly to insulin. To compensate, the pancreas initially produces more insulin, but over time, it may not be able to produce enough to maintain normal blood sugar levels. This leads to a relative insulin deficiency and elevated blood glucose, which can cause serious health complications if left unmanaged.
Q3259. Which of the following is an objective of the National Mental Health Programme (NMHP)?
Explanation
One of the primary objectives of the National Mental Health Programme is to ensure the availability of mental healthcare services at the primary healthcare level. By integrating mental health with general health services, the program aims to make care more accessible and reduce the stigma associated with seeking psychiatric help. This approach focuses on community-based treatment rather than long-term institutionalization of patients.
Q3260. Under Poshan Abhiyan, what is the target population for ensuring a reduction in anemia?
Explanation
Poshan Abhiyan takes a comprehensive approach to reducing anaemia by targeting the most vulnerable groups across the lifecycle. This includes children under six years of age, adolescent boys and girls, and women of reproductive age, particularly pregnant and lactating mothers. By addressing the nutritional needs and health status of these groups, the program aims to break the intergenerational cycle of malnutrition and anaemia.Answer key for these questions
| Q | Correct answer |
|---|---|
| 3251 | (a) Geographic coordinates of the farm |
| 3252 | (d) Phagocytosis |
| 3253 | (b) II, III and IV only |
| 3254 | (b) Severe joint and muscle pain (breakbone fever) |
| 3255 | (d) Extrapulmonary TB |
| 3256 | (a) Nourish her developing eggs |
| 3257 | (a) A-ii, B-iv, C-i, D-iii |
| 3258 | (a) Insulin resistance with relative deficiency |
| 3259 | (d) Integrating mental health with primary care |
| 3260 | (c) Children, adolescents, and fertile women |
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.