Q8: English Precis and Comprehension MCQ 2021

**The alpha particles are compact clusters of:**A) Electron and protonB) Two protons and two neutronsC) Three protons and three neutronsD) None of these Show Answer Correct Answer: B – Two protons and two neutrons

**The principle used in radar is the same as that of sonar. In radar, we use radio waves, whereas in sonar, we use:**A) Red wavesB) Infrared wavesC) Ultrasonic wavesD) Supersonic waves Show Answer Correct Answer: C – Ultrasonic waves

**Ombrophobia is fear of:**A) RainB) SnowC) SmogD) None of these Show Answer Correct Answer: A – Rain

**Basic metals can be converted into gold by:**A) HeatingB) BeatingC) Artificial nuclear radioactivityD) None of these Show Answer Correct Answer: C – Artificial nuclear radioactivity

**The unit that coordinates different devices of the computer system is:**A) ALUB) RegisterC) Control UnitD) Logical instruction Show Answer Correct Answer: C – Control Unit