ANS:A - have been waiting

No answer description is available. 

ANS:A - 6

Here argv[1], argv[2] and argv[3] are string type. We have to convert the string to integer type before perform arithmetic operation. Example: j = atoi(argv[1]) + atoi(argv[2]) + atoi(argv[3]);

ANS:E - both (b) and (c).

The given answer is absolutely right, first reading means the back sight-reading, so when the first reading (back sight-reading) is more than the second reading (foresight reading) it represents a rise and vice versa for fall. For the same set up of instrument, staff reading is more at a lower point (depression) and less for a higher point (hill). Thus, staff reading provides information regarding the relative rise and fall of ground points. This provides the basics behind rising and fall method for finding out the elevation of unknown points.

In above given all options explain wrongly:

* Second reading more than first -fall.
* First reading is more than second-fall.
* First reading is less than second-rise.
* Second reading is less than first-rise. For example:

You took Back sight reading on staff A (imagine it was 1. 6 m) then you took foresight reading on staff B (Imagin it was 1. 8m). It means your staff B is in depression area because it shows more reading as compared Staff A through the instrument.

So if B. S level is less than F. S it means RISE.

And if B. S level is more than F. S it means FALL. B and C are correct because if the instrument is sighted to A and B from the same position then if the staff reading of A is higher than B then it shows that A is in lower elevation because the staff at A will be at the position lower than that of B.

So from the same instrument, the reading of A will be higher.

ANS:A - nickel

Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray solid that is lightweight and relatively strong. In terms of its applications in steel, magnesium is not typically added as an alloying element to enhance the strength of steel at elevated temperatures. Magnesium is more commonly used in aluminum alloys, where it contributes to the alloy's strength and corrosion resistance. In steelmaking, the most common alloying elements for enhancing strength at elevated temperatures include nickel, chromium, molybdenum, and vanadium. These elements form various intermetallic compounds and solid solutions within the steel matrix, improving its mechanical properties at high temperatures. While magnesium can be added to certain steel grades for specific purposes, such as deoxidation or grain refinement, it does not significantly contribute to the high-temperature strength of steel. Therefore, it is not typically used for this purpose in steel manufacturing processes.

ANS:D - fabricated on a tiny silicon chip

No answer description is available. 

ANS:D - Mach number is given by the ratio of the speed of the fluid to that of sound in the fluid under conditions of flow.

The correct statement among the options provided is: Mach number is given by the ratio of the speed of the fluid to that of sound in the fluid under conditions of flow. Here’s an explanation of each statement:

1. Fanning friction factor is inversely proportional to Reynolds number always.
   • This statement is incorrect. The Fanning friction factor fff is inversely proportional to the Reynolds number ReReRe for laminar flow, but for turbulent flow, it depends on the relative roughness of the pipe and Reynolds number. It does not hold true "always" across all flow regimes.
2. The property of a randomly packed bed (with Raschig rings) is given by the ratio of the total volume to the volume of voids in the bed.
   • This statement is incorrect. The property of a packed bed is typically characterized by parameters such as porosity (the ratio of void volume to total volume) or specific surface area, but it is not defined by the ratio of total volume to void volume.
3. Mach number in an incompressible fluid is always unity.
   • This statement is incorrect. Mach number (Ma) is defined as the ratio of the flow velocity to the speed of sound in the fluid. For incompressible fluids, where the speed of sound is infinitely high (since sound cannot propagate in them), the Mach number is effectively zero. It is not always unity; it depends on the flow conditions and fluid properties.
4. Mach number is given by the ratio of the speed of the fluid to that of sound in the fluid under conditions of flow.
   • This statement is correct. Mach number (Ma) is a dimensionless quantity that expresses the speed of an object moving through a medium (usually a fluid) relative to the speed of sound in that medium. It is given by Ma=VaMa = \frac{V}{a}Ma=aV​, where VVV is the velocity of the fluid and aaa is the speed of sound in the fluid.

ANS:B - Karnataka

Karnataka Health Minister Dr K Sudhakar inaugurated India's brain health clinic in Bengaluru to diagnose, treat, refer and follow up patients with common neurological disorders.

ANS:C - KABIL

KABIL and CSIR-IMMT have allied to strengthen India's mineral security, leveraging CSIR-IMMT's expertise in mineral processing and metal extraction for collaborative projects and technical advancements.

ANS:B - Kerala

Kerala is now the first and only state in the country to have its own internet service, according to Chief Minister Pinarayi Vijayan, who made the announcement.

ANS:B - New Delhi

The Tri-Service conference 'Parivartan Chintan' will be held in New Delhi. This conference will be the first-ever gathering of heads of all tri-services institutions, chaired by Chief of Defence Staff (CDS), General Anil Chauhan.