Punjab Public Service Commission — Complete MCQ Bank
PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.
Which everyday device changes alternating current from power lines to the lower voltages suitable for homes?
Which unit measures the loudness or intensity of sound?
Which unit measures the frequency of sound waves typically expressed as cycles per second?
Which human body system is primarily responsible for fighting infections and diseases?
Which common kitchen equipment uses microwave radiation to heat food by exciting water molecules?
Which chemical element has the highest melting point of all pure metals, used in light bulb filaments?
Which part of the nervous system is called the automatic system and controls involuntary body functions like digestion?
Which gas makes up approximately 0.04 percent of Earth's atmosphere and is essential for plant photosynthesis?
Which scale measures the hardness of minerals, with diamond being the hardest at 10?
Which common household item works based on the principle of Pascal's law?