ANS:C - 45123

"He suddenly left the house."

ANS:C - Base address of the array

The statement 'C' is correct. When we pass an array as a funtion argument, the base address of the array will be passed.

ANS:A - larger proportion of lime grounded finer than normal cement

Yes,
1. A larger proportion of lime.
2. Burn at high temp.
3. Grinding finer than OPC.

ANS:D - An electronic voltmeter draws appreciable current from source

An electronic voltmeter draws negligible current.

ANS:D - carbon dioxide.

The commonly used solvent in supercritical extraction is carbon dioxide (CO2). Supercritical extraction, also known as supercritical fluid extraction (SFE), is a process used to extract compounds from solid or liquid materials using a supercritical fluid as the solvent. In supercritical extraction, carbon dioxide is the most widely used solvent due to its favorable properties:

1. Supercritical State: Carbon dioxide becomes supercritical at relatively low temperatures and moderate pressures, making it easy to work with and manipulate within the supercritical region.
2. Non-Toxic and Inert: Carbon dioxide is non-toxic, non-flammable, and environmentally friendly. It does not leave behind any residue in the extracted products, making it suitable for use in food, pharmaceutical, and cosmetic industries.
3. Tunable Solvency: The solvency power of carbon dioxide can be adjusted by changing the temperature and pressure conditions, allowing for selective extraction of target compounds while leaving unwanted components behind.
4. Easy Separation: After extraction, carbon dioxide can be easily separated from the extracted compounds by simple depressurization, leaving behind a clean, solvent-free product.

ANS:A - normal

An equipotential line in fluid dynamics is normal to the velocity vector at every point.

Explanation:

1. Equipotential Line:
   • An equipotential line in fluid flow represents a line where the potential (such as pressure or velocity potential) remains constant.
   • In the context of fluid dynamics, it is often associated with the pressure potential, where the pressure is constant along the equipotential line.
2. Relationship with Velocity Vector:
   • The velocity vector in fluid flow is tangent to the streamlines. Streamlines are imaginary lines that are everywhere tangent to the velocity vector at a given instant.
3. Normality to Velocity Vector:
   • An equipotential line is perpendicular (normal) to the velocity vector at every point where they intersect.
   • This relationship arises because in fluid flow, pressure (and thus potential) gradients drive fluid motion along streamlines, which are tangent to the velocity vector.
4. Options Analysis:
   • Normal: Correct term in fluid dynamics indicating perpendicularity.
   • Abnormal: Not a standard term in this context.
   • Tangential: Describes the direction of streamlines in relation to the velocity vector, not equipotential lines.

Conclusion:

ANS:D - Goa

Union Minister Nitin Gadkari inaugurated the new Zuari bridge in Goa.

ANS:A - Assam

REC Limited organized Bijli Utsav in Assam.

ANS:D - West Bengal

PM Modi flagged off West Bengal's first Vande Bharat Express on the Howrah-New Jalpaiguri route.

ANS:C - Jharkhand

Jharkhand government: To provide relief to the poor and middle class families of the state who are impacted by the increased fuel prices, the government has decided to a give relief of Rs 25 per litre on petrol to two-wheeler owners from January 26, 2022.