Indian Army Nursing Assistant Mock Test - 3 - Indian Army Nursing Assistant MCQ

First law of thermodynamics is based on law of conservation of energy i.e. energy supplied to a system has to be used in raising the internal energy of the system. So heat supplied is used to carry out the process.
∆U = Q + W.

The pressure law states that for a constant volume of gas in a sealed container the temperature of the gas is directly proportional to its pressure. This can be easily understood by visualising the particles of gas in the container moving with a greater energy when the temperature is increased.

Interference occurs for both transverse and longitudinal waves.
Interference does not indicate whether light is transverse or longitudinal since interference occurs for both types of waves.

No current passes through the Galvanometer in the bridge balance condition.Therefore, the resistance between B and D is infinite.

Oxygen is the most abundant element in the Earth's crust by mass, making up approximately 46.6% of the crust's composition. It plays a crucial role in the formation of minerals and rocks.

Water pollution is caused by addition of untreated domestic sewage and industrial wastage in water bodies.

The brown ring test is used to determine the presence of nitrate ions, NO₃^–. Dilute ferrous sulfate solution is added to solution containing nitrate ion. Following this, concentrated sulfuric acid is added along the sides of the test tube. A brown ring is formed at the junction concentrated sulfuric acid and solutions.

Rusting of iron is an example of oxidation as iron loses electrons to form iron oxide (rust).

Ethane is an example of a saturated hydrocarbon. Saturated hydrocarbons contain only single covalent bonds between carbon atoms and are fully saturated with hydrogen atoms.

Phosphorus is often referred to as the "master key to agriculture" due to its crucial role in promoting plant growth and development.

Mass no. = no. of protons + no. of neutrons.

One molecule of oxalic acid dihydrate (COOH)₂ 2H₂O contains 6 oxygen atoms.
Number of oxygen atoms in 1 mole = 6 x 6.023 x 10²³ = 36.13 x 10²³ atoms

Sodium chloride is known as rock salt, common salt, table salt.

Hydrogenation is the process of adding hydrogen to an unsaturated hydrocarbon, such as an alkene or alkyne, to convert it into a saturated hydrocarbon. This process is commonly used in the food industry to produce solid fats from liquid oils.

The Indian peacock, Pavo cristatus, the National Bird of India, is a colourful, swan-sized bird, with a fan-shaped crest of feathers, a white patch under the eye and a long, slender neck.

Bending of stem towards sunlight is called phototropism.

Explanation:
To determine which of the options are not nutrients, we need to understand what nutrients are. Nutrients are substances that provide nourishment to the body and are essential for growth, development, and maintenance of bodily functions. They can be divided into six major categories: carbohydrates, proteins, fats, vitamins, minerals, and water.
Let's analyze each option:
Option A: Proteins and carbohydrates
- Proteins and carbohydrates are both essential nutrients.
- They provide energy and play a crucial role in the body's structure, growth, and repair.
Option B: Vitamins and minerals
- Vitamins and minerals are also essential nutrients.
- They are required in small amounts but are crucial for various bodily functions and processes.
Option C: Dal and rice
- Dal and rice are food items and not individual nutrients.
- However, they do contain nutrients such as proteins, carbohydrates, vitamins, and minerals.
Option D: Both A and B
- This option is incorrect because both proteins and carbohydrates (option A) and vitamins and minerals (option B) are indeed nutrients.
Therefore, the correct answer is option C: Dal and rice are not nutrients, but they do contain nutrients.

Anemia is a deficiency disorder caused by the lack of iron in the diet. Iron is necessary for the production of hemoglobin, a protein in red blood cells that carries oxygen to the body tissues. Insufficient iron leads to decreased hemoglobin levels and can result in anemia.

Developing crop varieties with wider adaptability will help in stabilising crop production, because:
1. A single variety can be grown under different climatic conditions in different regions:
- Crop varieties with wider adaptability can tolerate a range of climatic conditions, including temperature, humidity, and rainfall variations.
- This allows farmers to cultivate the same variety in different regions, reducing the risk of crop failure due to unfavorable weather conditions.
- It provides flexibility in crop production, ensuring a stable supply of food even in regions with unpredictable weather patterns.
2. That variety will have resistance to a wide variety of pests:
- Developing crop varieties with wider adaptability often involves incorporating traits that enhance resistance to various pests and diseases.
- This reduces the reliance on chemical pesticides, resulting in more sustainable and environmentally friendly farming practices.
- By minimizing crop losses due to pests, the stability of crop production is improved, ensuring a consistent supply of food.
3. That variety will be higher yielding than many other varieties:
- Crop varieties with wider adaptability are often selected based on their ability to produce high yields under diverse environmental conditions.
- These varieties are bred to have better stress tolerance, efficient nutrient utilization, and improved growth characteristics.
- Higher-yielding varieties contribute to stable crop production by providing a larger harvest, reducing the risk of food shortages.
4. That variety can be grown under the same climatic conditions:
- Developing crop varieties with wider adaptability also includes selecting varieties that can thrive under similar climatic conditions.
- This allows farmers to grow the same variety continuously without needing to switch to different varieties each season or year.
- Consistency in crop variety simplifies farming practices and reduces the need for constant adjustments, leading to more stable crop production.
In conclusion, developing crop varieties with wider adaptability plays a crucial role in stabilizing crop production. It allows for cultivation under various climatic conditions, provides resistance against pests, enhances yield potential, and simplifies farming practices. These factors collectively contribute to a more reliable and secure food supply.

The longest bone in our body is the Femur.
Explanation:
- The femur is located in the thigh and extends from the hip to the knee.
- It is the largest and strongest bone in the human body.
- The average length of a femur in an adult is about 18-20 inches (46-51 cm).
- The femur is responsible for supporting the weight of the body, providing stability, and allowing for movement.
- It is crucial for activities such as walking, running, and jumping.
- The femur has a unique structure with a head, neck, shaft, and two condyles at the bottom that articulate with the tibia and patella.
- It is also a site for the attachment of several muscles, including those responsible for hip flexion, extension, and rotation.
- The femur is composed of dense and strong bone tissue, allowing it to withstand significant forces during daily activities.
- In cases of fractures or injuries to the femur, surgical intervention may be necessary to ensure proper healing and restoration of function.

Pyramid of numbers in a forest ecosystem is spindle shaped. In a forest ecosystem, number of producers is lesser but supports a greater number of herbivores. Which in turn support a fewer number of carnivores. This results in spindle shaped structure of pyramid of numbers.

Camel perspires very less due to absent of sweat glands. It releases thick urine and have broad soles.

Centre of the ellipse is the intersection point of 
x+y−1=0.........(1) 
x−y=0............(2)
Substituting x from equation 2 in equation 1 two equations, we get,
2y=2,   y=1 
Replacing, we get x=1
⇒(1,1) is the centre

There are 2 rows and 5 columns in the matrix.
Therefore, order of the matrix: 2 x 5.

Directive Principles of State Policy are based on the principles of socialism and represent the ideals to be achieved by the State for the welfare of its citizens.

Panchayati Raj institutions were not applicable to the state of Jammu and Kashmir. However, after the abrogation of Article 370 in August 2019, it became applicable to the newly formed Union Territory of Jammu and Kashmir.

Bouncing back of rays of light after hitting a reflecting surface is called reflection of light.

Reflection of light is the phenomenon of bouncing back of light in the same medium on striking the surface of any object.

If a branch of a tree is vigorously shaken, some of the leaves may get detached from tree due to inertia of rest. The leaves tend to remain in rest but branches come in motion.

The Cabinet chaired by Prime Minister Narendra Modi approved the proposal to open the Consulate General of India in Auckland, New Zealand. The opening of the Consulate General of India in Auckland will further strengthen the relations between India and New Zealand. This Consulate is likely to be opened and fully operational within a time frame of 12 months.