General Science Previous Papers Questions & Answers
Q: Wi-Fi in a computer implies? [Assist. Comm. 2012]
Ans: Wireless Local Area Network
Explanation: Wi-Fi is a popular technology that allows an electronic device to exchange data wirelessly (using radio waves) over a computer network, including high-speed internet connections.
Q: A television remote uses [Assist. Comm. 2012]
Ans: Infrared Waves
A remote control is a component of an electronic device, most commonly a television set, DVD player and home theatre system. It originally used for operating the television device wirelessly from a short line-of-sight distance. The main technology used in home remote is infrared (IR).
Q: Which device convert AC voltage into DC voltage? [CDS 2012]
A rectifier is an electronic device, used to convert AC voltage into DC voltage
Q: The IC chip is used in computer is made of [RAS/RTS 2012]
The Integrated Circuit (IC) chip, used in computers and various electronic devices are made with silicon, to be used as the semiconductor.
Q: Which substance is most commonly used for cloud seeding (artificial rain)? [IB 2012]
Ans: Silver Iodide
Silver iodide is mostly used for cloud seeding (artificial rain).
Q: The quality of diesel oil for use in diesel engines is determined by the [HP PSC 2012]
Ans: Cetane Number
Cetane Number (CN) is a measurement of the combustion quality of diesel fuel during compression ignition. It is a significant expression of the quality of a diesel fuel.
Q: Which gets deficient in the human body due to dengue fever? [UP PSC 2012]
The platelets count decreases rapidly in the dengue fever. The platelets are produced in blood cell formation in bone marrow. It is associated with the growth of the cell.
Q: Sun-loving plants are IHP PSC 2012)
Heliophytes or heliophytic plants, also called Sun-loving plants, are those that require full exposure to the Sun for their optimum growth. Examples are coconut, mango, sugarcane etc.