Everyday Science MCQs
Everyday Science MCQs cover physics, chemistry, biology, inventions, environment, and human body basics. Ideal for CSS, PMS, PPSC, FPSC, and NTS exams, they boost scientific awareness and accuracy in general knowledge sections.
Q: Common salt used in food is chemically known as
A) Potassium nitrate
B) Sodium oxide
C) Calcium carbonate
D) Sodium chloride
Q: The energy transformation in an electric fan is
A) Electrical to heat
B) Heat to mechanical
C) Electrical to mechanical
D) Mechanical to sound
Q: The metal commonly used in electrical wiring is
A) Iron
B) Copper
C) Aluminium
D) Zinc
Q: The device that converts sound energy into electrical signals is called
A) Resistor
B) Microphone
C) Speaker
D) Amplifier
Q: Boiling point of water at sea level is
A) 90°C
B) 120°C
C) 100°C
D) 110°C