PMS PAST PAPER HELD ON 04.04.2022Crude oil is heated in furnace up to?
A) 300°C
B) 350°C
C) 400°C
D) 450°C
In petroleum refineries, crude oil is typically heated to around 400°C before entering the fractional distillation column. Heating separates hydrocarbons into products such as petrol, diesel, kerosene, and lubricating oils based on boiling points.
PMS PAST PAPER HELD ON 04.04.2022
A)
Stigma
B)
Anthers
C)
Ovary
D)
Petals
After fertilization, the ovary of a flower develops into a fruit while the ovules become seeds. The fruit protects the seeds and often helps in their dispersal through animals, wind, or water.
PMS PAST PAPER HELD ON 04.04.2022
A)
CO₂
B)
N₂
C)
NH₃
D)
NH₄NO₃
Producers such as green plants absorb usable nitrogen compounds from the soil, including ammonia (NH₃) and nitrates. Nitrogen is essential for making proteins, chlorophyll, and nucleic acids necessary for plant growth and ecosystem balance.
PMS PAST PAPER HELD ON 04.04.2022
A)
Benjamin Banneker
B)
Thomas Edison
C)
Alessandro Volta
D)
Benjamin Franklin
Benjamin Franklin invented the lightning rod to protect buildings from lightning strikes and also designed bifocal spectacles to help people see both near and distant objects. His inventions greatly influenced science and daily life.
PMS PAST PAPER HELD ON 04.04.2022
A)
1796
B)
1976
C)
1980
D)
1767
Edward Jenner developed the first successful vaccine in 1796 by using cowpox material to protect against smallpox. His pioneering work laid the foundation of modern immunology and preventive medicine worldwide.
PMS PAST PAPER HELD ON 04.04.2022
A)
Antonio Guterres
B)
Amjad Hussain Sial
C)
Ajay Bisaria
D)
Arjun Bahadur Thapa
Amjad Hussain Sial from Pakistan served as the Secretary General of the South Asian Association for Regional Cooperation (SAARC). SAARC promotes regional cooperation among South Asian countries in economic and social sectors.
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