Q3241. A condition characterized by persistent feelings of sadness, hopelessness, and a loss of interest in previously enjoyed activities is known as:
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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Q3242. One of the primary targets of the Poshan Abhiyan is to reduce stunting in children (0-6 years) by what percentage annually?
Explanation
One of the key goals of Poshan Abhiyan is to reduce the prevalence of stunting in children under six years of age by two percent annually. By targeting this specific reduction, the program aims to significantly lower the overall burden of chronic malnutrition over time. This objective is pursued through a multi-sectoral approach involving improved nutrition, better healthcare services, and increased social awareness.
Q3243. At the national level, which authority is the nodal agency for the implementation of the Ayushman Bharat PM-JAY scheme?
Explanation
The National Health Authority is the apex government body responsible for implementing India’s flagship public health insurance scheme, Ayushman Bharat PM-JAY. Its role includes managing the scheme’s overall strategy, coordinating with state governments, and ensuring the smooth operation of the IT systems used for beneficiary identification and claims processing. The NHA is critical for achieving the goal of universal health coverage.
Q3244. Consider the following carbohydrates:
I. Glucose
II. Fructose
III. Sucrose
Which of the above is/are considered monosaccharides?
I. Glucose
II. Fructose
III. Sucrose
Which of the above is/are considered monosaccharides?
Explanation
Monosaccharides are the simplest sugars and cannot be further hydrolyzed into smaller units. Glucose and fructose are both examples of monosaccharides that are naturally found in various foods. Sucrose, on the other hand, is a disaccharide formed by the chemical bonding of one glucose molecule and one fructose molecule. Understanding these classifications is important for grasping how carbohydrates are digested and metabolized.
Q3245. The deficiency of which vitamin is historically known to affect sailors on long voyages, causing swollen and bleeding gums?
Explanation
Scurvy is a disease resulting from a severe deficiency of Vitamin C, which is essential for the production of collagen. Historically, it was common among sailors who lacked access to fresh fruits and vegetables during long sea voyages. Symptoms include fatigue, swollen and bleeding gums, and joint pain. The discovery that citrus fruits could prevent and cure scurvy was a major breakthrough in nutritional science.
Q3246. Which of the following is an excellent plant-based source of dietary iron?
Explanation
Spinach is well-known for being an excellent plant-based source of iron, specifically non-heme iron. While iron is also found in animal products, leafy green vegetables like spinach provide a vital source for individuals following a vegetarian or vegan diet. To maximize the absorption of iron from spinach, it is often recommended to consume it with foods rich in Vitamin C, such as citrus fruits.
Q3247. A balanced diet should provide adequate micronutrients. Which of the following statements about micronutrients is correct?
Explanation
Micronutrients, which include various vitamins and minerals, are required by the body in very small amounts. Although they do not provide energy themselves, they are essential for regulating a wide range of metabolic processes, including growth, immune function, and brain development. Because the body cannot produce most micronutrients, they must be obtained through a varied and balanced diet for optimal health.
Q3248. Severe Acute Malnutrition (SAM) in children is determined by assessing the:
Explanation
The Mid-Upper Arm Circumference is a quick and effective measurement used to screen children for severe acute malnutrition. A measurement below a specific threshold indicates significant wasting and an increased risk of mortality. This tool is particularly useful in community settings because it is easy to perform and requires minimal equipment, allowing for the rapid identification and referral of malnourished children.
Q3249. Chalk powder is a common adulterant added to sugar or salt. Its presence can be chemically detected by dissolving the sample in water and adding a few drops of:
Explanation
Chalk powder, often added as an adulterant to sugar or salt, is composed of calcium carbonate. When hydrochloric acid is added to a sample containing chalk, a chemical reaction occurs that releases carbon dioxide gas, which can be observed as effervescence or bubbling. This simple test allows for the detection of insoluble mineral matter that should not be present in pure salt or sugar.
Q3250. Read the following statements and select the correct option:
Assertion (A): Vaccination is a method of acquiring passive immunity.
Reason (R): Vaccines contain pre-formed antibodies that immediately neutralize pathogens.
Assertion (A): Vaccination is a method of acquiring passive immunity.
Reason (R): Vaccines contain pre-formed antibodies that immediately neutralize pathogens.
Explanation
Vaccination is a method of acquiring active immunity, not passive immunity. It works by introducing a harmless antigen into the body, which then stimulates the person’s own immune system to produce antibodies and memory cells. Passive immunity, conversely, involve the direct transfer of pre-formed antibodies from another source. Therefore, vaccines do not contain pre-formed antibodies but rather trigger the body’s natural defense mechanism.Answer key for these questions
| Q | Correct answer |
|---|---|
| 3241 | (d) Major Depressive Disorder |
| 3242 | (b) 2% |
| 3243 | (a) National Health Authority (NHA) |
| 3244 | (b) I and II only |
| 3245 | (b) Vitamin C |
| 3246 | (c) Spinach |
| 3247 | (d) Essential for regulating metabolic processes |
| 3248 | (a) Mid-Upper Arm Circumference |
| 3249 | (b) Hydrochloric acid (HCl) |
| 3250 | (d) Both A and R are false. |
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.