ANS:D - Minister

Explanation: All except Minister are chessmen.

ANS:A - charged ion

Non neutral subatomics are protons and electrons. If an electron removed from an atom it undergone positive charge, when an electron added to atom then it get negative charge. Either it is positive or negative totally it is a charged ion. If we add or remove protons from an atom. That atom changes completely to next element in periodic table. Example : If hydrogen gets a proton in addition then it changes to helium of positively charged. Why because this new helium atom consists of just one electron. But as per given options. Only first one follows this.

ANS:E - all the above.

1. Typhoid: Typhoid fever is a bacterial infection caused by Salmonella typhi bacteria. It is primarily transmitted through the ingestion of food or water contaminated with the feces of an infected person. The bacteria multiply in the intestines and then spread to the bloodstream, causing symptoms such as prolonged fever, weakness, stomach pain, headache, and sometimes a rash. Without proper treatment, typhoid fever can be life-threatening. In areas with poor sanitation and inadequate access to clean water, typhoid fever can spread rapidly, leading to outbreaks.
2. Cholera: Cholera is an acute diarrheal disease caused by the bacterium Vibrio cholerae. It is typically transmitted through the ingestion of water or food contaminated with the feces of an infected person. Cholera infection can lead to severe watery diarrhea, vomiting, and dehydration, which if left untreated, can be fatal. Cholera outbreaks often occur in areas with inadequate sanitation, overcrowding, and limited access to clean water. Contaminated water sources, such as rivers, wells, or municipal water supplies, can serve as reservoirs for the cholera bacterium, contributing to the spread of the disease.
3. Dysentery: Dysentery is a gastrointestinal infection characterized by severe diarrhea containing blood or mucus. It can be caused by various pathogens, including bacteria such as Shigella, Campylobacter, and certain strains of Escherichia coli (E. coli). These bacteria are typically transmitted through the ingestion of contaminated food or water. Symptoms of dysentery may also include abdominal cramps, fever, and dehydration. In regions with inadequate sanitation and poor hygiene practices, dysentery outbreaks are common, particularly among populations with limited access to clean water and proper sanitation facilities.
4. Infectious Hepatitis: Infectious hepatitis, specifically hepatitis A, is a viral infection caused by the hepatitis A virus (HAV). It primarily affects the liver and is transmitted through the ingestion of food or water contaminated with the feces of an infected person. Symptoms of hepatitis A may include jaundice (yellowing of the skin and eyes), fatigue, nausea, abdominal pain, and loss of appetite. While hepatitis A infection is typically not life-threatening and resolves on its own in most cases, it can cause severe illness in some individuals, especially in older adults or those with underlying liver disease. Poor sanitation and inadequate access to clean water increase the risk of hepatitis A transmission, particularly in areas with overcrowding and substandard living conditions.

ANS:B - 0111 1001

Decimal 46 in excess 3 code = 46 + 33 = 79 in decimal = 0111 1001 in 4 bit binary.

ANS:B - refrigeration obtained to the work required.

The Coefficient of Performance (COP) of a refrigerator is the ratio of refrigeration obtained to the work required. In other words, it is the ratio of the amount of heat energy removed from the refrigerated space (refrigeration effect) to the amount of work input required to achieve this cooling. Mathematically, the COP of a refrigerator is expressed as: COP=Refrigeration effectWork inputCOP=Work inputRefrigeration effect​ A higher COP indicates that the refrigerator is more efficient, as it is able to remove more heat energy from the refrigerated space for a given amount of work input.

ANS:B - Keki Mistry

Keki Mistry has been appointed as the chairman of the HDFC Life Insurance board, replacing Deepak S Parekh. This decision was made by the board and is subject to approval from the Insurance Regulatory and Development Authority (IRDA). Vibha Padalkar serves as the CEO of HDFC Life Insurance, and the company was founded in 2000 with its headquarters in Mumbai.

ANS:B - Saudi Arabia

S Jaishankar is on a visit Saudi Arabia country for strengthening bilateral relations