CSS Compulsory Past Papers MCQs

**Cement factory labourers are prone to:**A) LeukemiaB) CytosilicosisC) Bone marrowD) None of these Show Answer Correct Answer: B – Cytosilicosis

**Most major Tsunamis are produced by earthquakes with hypocenters less than:**A) 30 kmB) 40 kmC) 50 kmD) None of these Show Answer Correct Answer: A – 30 km

**The fastest enzyme is:**A) PepsinB) DNA polymeraseC) Carbonic anhydraseD) None of these Show Answer Correct Answer: C – Carbonic anhydrase

**Which of the following source of energy is caused by uneven heating of earth’s surface?**A) WindB) SolarC) BiomassD) None of these Show Answer Correct Answer: A – Wind

**Process of adding vitamins to milk is known as:**A) FlavoringB) FortificationC) FermentationD) None of these Show Answer Correct Answer: B – Fortification

**Global winds towards western direction are known as:**A) Trade windsB) Western windsC) Reynolds windD) None of these Show Answer Correct Answer: B – Western winds

**The waves which are used for line of sight (LOS) communication are called:**A) Space wavesB) Cable wavesC) Antenna wavesD) None of these Show Answer Correct Answer: A – Space waves

**Perinatal transmission is said to occur when a pathogen is transmitted from:**A) Non-human to humanB) Infected to uninfectedC) Mother to infantD) None of these Show Answer Correct Answer: C – Mother to infant

**Which of the plant group needs both land and water to complete their life cycle?**A) BryophytaB) TracheophytaC) ThallophytaD) None of these Show Answer Correct Answer: A – Bryophyta

**Maximum amount of carbohydrates are obtained from:**A) NutsB) Plant oilC) Whole grain foodD) None of these Show Answer Correct Answer: C – Whole grain food