General Knowledge Questions

Electrostatic precipitator is used to control Air pollution. An electrostatic precipitator is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

Goosebumps are caused by the contraction of the tiny muscles attached to hair follicles. These muscles are arrectores pilorum muscles.

A dynamometer wattmeter can be used for measuring both A.C and D.C currents.

Infosys has announced the launch of a digital platform offering learning and engagement experiences for engineering students.

InfyTQ is a free platform open to all engineering students in their third and fourth year. The platform encourages holistic development by imparting technical as well as professional skills and helps them become industry ready.

The 'sphinx' is a mythological animal with the body of a lion and the head of man. Each Sphinx was carved out of a single solid stone.

A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase.

Hence, the option that cannot be considered a single phase is A. a heterogeneous mixture.