ANS:C - 4213

No answer description is available. 

ANS:C - Distributive

No answer description is available. Let's discuss.

ANS:C - to a target fixed on theodolite tripod on which theodolite may be fitted easily

The Answer is C.

This is the most effective approach because it eliminates the need for independent centering of the instrument. The target is already aligned with the tripod's center, ensuring accuracy and minimizing the impact of short legs. This method is also fast and convenient.

ANS:A - current is maximum

No answer description is available.

ANS:C - Bamboo

Bamboo is a type of grass that belongs to the family Poaceae. It is known for its tall, woody stems (culms) and fast growth rate, making it a versatile and sustainable material used in various applications. Here's an explanation of bamboo:

1. Botanical Characteristics: Bamboo is a perennial plant characterized by its tall, hollow stems known as culms. These culms have distinct nodes and internodes and are segmented into sections along their length. Bamboo plants have a rhizomatous root system that spreads horizontally underground, allowing them to quickly propagate and form dense clusters known as "groves."
2. Variety: There are over 1,500 species of bamboo found in diverse habitats ranging from tropical forests to temperate regions. Bamboo species vary in size, shape, and color, with some species growing to heights of over 100 feet (30 meters) and others being much smaller and more compact.
3. Uses: Bamboo has been used by humans for thousands of years for a wide range of purposes. It is valued for its strength, durability, and versatility. Common uses of bamboo include:
   • Construction: Bamboo is used as a building material for structures such as houses, bridges, and scaffolding. Its strong and lightweight properties make it an ideal alternative to traditional wood.
   • Furniture and Crafts: Bamboo is used to make furniture, flooring, and a variety of handicrafts such as baskets, mats, and utensils.
   • Textiles: Bamboo fibers are processed to create soft and breathable fabrics used in clothing, bedding, and other textile products.
   • Culinary: Certain species of bamboo, such as bamboo shoots, are edible and used in cooking in many Asian cuisines.
   • Environmental Uses: Bamboo is recognized for its environmental benefits, including carbon sequestration, soil stabilization, and erosion control. It is also used in reforestation and agroforestry projects.
4. Sustainability: Bamboo is considered one of the most sustainable and eco-friendly materials due to its rapid growth rate, high biomass production, and minimal environmental impact compared to traditional timber sources. It requires less water, pesticides, and fertilizers to grow and can be harvested without causing harm to the plant or ecosystem.
5. Cultural Significance: Bamboo holds cultural significance in many societies around the world, particularly in Asia where it is revered as a symbol of strength, flexibility, and resilience. It features prominently in art, literature, folklore, and traditional ceremonies.

ANS:D - all geometrical, dynamic and kinematic similarity.

Scale-up of agitator design requires both geometrical and dynamic similarity.

Explanation:

1. Geometrical Similarity:
   • Geometrical similarity ensures that the scaled-up agitator has the same proportions and dimensions as the original agitator. This includes maintaining the same blade geometry, diameter, shaft length, and clearance from the vessel walls.
   • Geometrical similarity helps in ensuring that the flow patterns, mixing efficiency, and power requirements are comparable between the original and scaled-up designs.
2. Dynamic Similarity:
   • Dynamic similarity ensures that the forces acting on the fluid and the agitator (such as shear forces, turbulence intensity, and power consumption) are equivalent in both the original and scaled-up systems.
   • This involves matching the Reynolds number, Froude number, and other dimensionless parameters that govern fluid flow dynamics and mixing characteristics.
3. Kinematic Similarity:
   • Kinematic similarity refers to the similarity in motion between corresponding points in the scaled-up and original agitator systems. It ensures that the velocities and accelerations of fluid elements around the agitator are proportional in both systems.
4. Scale-up Considerations:
   • When scaling up an agitator design, it is crucial to maintain both geometrical and dynamic similarity to ensure that the performance and efficiency of mixing are maintained or improved in the larger system.
   • Simply maintaining geometrical similarity (same dimensions) without considering dynamic similarity (same fluid flow characteristics) may result in inefficient mixing or unexpected flow patterns.

Conclusion:

ANS:A - Indore

The three-day 17th Pravasi Bharatiya Divas conference began in Indore, Madhya Pradesh on January 8.

ANS:B - Hyderabad

Hyderabad is set to host the Formula E World Championship race for the first time.

ANS:D - New Delhi

The government of India will be organizing the two-day "Voice of Global South Summit" in New Delhi.

ANS:D - Kolkata

The Prime Minister inaugurated the second campus of the Chittaranjan National Cancer Institute in Kolkata.