ANS:E - Paper

Explanation: All others can be drawn on paper.

ANS:A - ping 127.0.0.1

ANS:D -

To calculate the settling velocity of a particle in a sedimentation tank, we can use Stokes' law, which describes the settling velocity of small spherical particles in a fluid. Stokes' law is given by: Vs​=2g (ρs​−ρf​)r^2​ / 9μ Where:

• Vs​ is the settling velocity of the particle,
• g is the acceleration due to gravity (approximately 9.81 m/s29.81m/s2),
• ρs​ is the density of the particle,
• ρf​ is the density of the fluid (in this case, the density of water),
• r is the radius of the particle,
• μ is the dynamic viscosity of the fluid (water).

ANS:D - A [B (A + C)] D

In taking dual OR is replaced by AND and vice versa.

ANS:A - heat capacity

At absolute zero temperature (0 Kelvin or -273.15 degrees Celsius), substances typically exhibit a state of minimum energy where their atoms or molecules are in their lowest possible energy states. At this temperature:

1. Heat capacity: At absolute zero, the heat capacity of substances generally tends to approach zero. Heat capacity measures the amount of heat required to change the temperature of a substance by a given amount, but at absolute zero, substances have minimal thermal energy, so there is minimal capacity to absorb or release heat.
2. Crystalline structure: At absolute zero, substances may or may not have a crystalline structure depending on their atomic or molecular arrangement. Absolute zero does not dictate a specific crystalline structure for all substances.
3. Entropy: At absolute zero, the entropy of a perfect crystalline substance is typically zero because there is only one possible microstate for the system. However, real substances may have residual entropy due to imperfections, defects, or quantum mechanical effects.

ANS:C - Sakshi Mittal

Sakshi Mittal, an Indian Administrative Service (IAS) officer of the 2010 batch from the AGMUT cadre, has been appointed as Director in the Department of Personnel and Training (DoPT) under the Central Staffing Scheme. She will serve in this role for a period of 5 years from the date of assuming charge, following her recommendation for central deputation by the Ministry of Home Affairs.

ANS:C - Angola

Lourenco, 68, was sworn in alongside Esperanca da Costa, Angola's first female vice president in the capital, Luanda.