Q: Opium is derived from which part of poppy plant ?

A: Seeds

B: Leaves

C: Bark

D: Capsule



Correct Option: D  [ Capsule ]

Remark:

Explanation: Opium is obtained from the latex present in the unripe capsule of the poppy plant (Papaver somniferum). The latex is collected by making incisions on the capsule, and after drying, it forms raw opium, which contains alkaloids like morphine and codeine.


Q: The physical quantity which is measured as Kg m/s2 is:

A: Work

B: Power

C: Force

D: Motion



Correct Option: C  [ Force ]

Remark:

The physical quantity measured in kg·m/s2 is Force. The SI unit of force is the Newton (N), which is defined as the force required to accelerate a mass of 1 kilogram by 1 meter per second squared. Mathematically, Force = Mass × Acceleration.

  • Work: Measured in joules (N·m).
  • Power: Measured in watts (J/s).
  • Motion: Describes movement, not a measurable quantity in these units.


Q: Kidney disease in man is caused by the pollutant

A: Cadmium

B: Iron

C: Cobalt

D: Carbon



Correct Option: A  [ Cadmium ]

Remark:

Explanation: Cadmium (Cd) is a toxic heavy metal released from industrial waste, batteries, and mining processes. When it enters the food chain (especially through contaminated rice or water), it accumulates in the body and affects the kidneys, causing protein loss in urine and kidney failure. It is also associated with Itai-Itai disease in Japan, characterized by kidney damage and brittle bones.


Q: Which is the largest part of the human brain ?

A: Medulla Oblongata

B: Cerebellum

C: Cerebellum

D: none of them



Correct Option: C  [ Cerebellum ]

Remark:

Explanation: The Cerebrum forms about 80% of the total brain mass. It is divided into two hemispheres and is responsible for higher brain functions such as thought, action, reasoning, and emotion. The Cerebellum lies below it and controls coordination and balance, while the Medulla oblongata manages vital involuntary functions.


Q: Which of the following is an example of thermoplastics?

A: Bakelite

B: Melamine

C: PVC

D: none of these



Correct Option: C  [ PVC ]

Remark:

Explanation: PVC (Polyvinyl Chloride) is an example of a thermoplastic. Thermoplastics soften on heating and can be reshaped multiple times without undergoing any chemical change. In contrast, Bakelite and Melamine are thermosetting plastics that become hard and rigid after heating and cannot be remolded.


Q: The highest tides occur at the time of the new moon and the:

A: full moon

B: solar eclipse

C: lunar eclipse

D: volcanoes



Correct Option: A  [ full moon ]

Remark:

The highest tides, known as spring tides, occur during the time of the new moon and the full moon. During these phases, the Sun, Moon, and Earth are aligned in a straight line, causing their combined gravitational forces to produce higher high tides and lower low tides. This alignment amplifies the tidal effect, resulting in the strongest tidal ranges.

Other options (for context)

  • Solar eclipse: Can coincide with a new moon but is not directly responsible for higher tides.
  • Lunar eclipse: Occurs during a full moon but does not always produce exceptionally high tides.
  • Volcanoes: Have no relation to tidal movements; tides are caused by gravitational forces, not geological activity.


Q: 1 Gigabyte (GB) is equal to:

A: 1024 bytes

B: 1024 KB

C: 1024 MB

D: 1024 TB



Correct Option: C  [ 1024 MB ]

Remark:

Explanation: 1 Gigabyte (GB) is equal to 1024 Megabytes (MB). Computer memory and storage are measured in powers of 2 (binary system), where 1 KB = 1024 bytes, 1 MB = 1024 KB, and 1 GB = 1024 MB.


Q: India's first supercomputer is known as:

A: SAGA

B: PARAM 8000

C: EKA

D: PARAM YUVA



Correct Option: B  [ PARAM 8000 ]

Remark:

Explanation: PARAM 8000 is India's first supercomputer, developed in 1991 by the Centre for Development of Advanced Computing (C-DAC) under the leadership of Dr. Vijay Bhatkar. It marked India’s entry into high-performance computing and was capable of 1 GigaFLOP (one billion calculations per second).


Q: What is the S.I. unit of electric current?

A: Volt

B: Watt

C: Ampere

D: Ohm



Correct Option: C  [ Ampere ]

Remark:

Explanation: The S.I. unit of electric current is the Ampere (A). It is defined as the rate of flow of electric charge through a conductor. One ampere equals one coulomb of charge passing through a point in one second.


Q: Which of the following diseases is caused by H1N1, virus ?

A: Swine flu

B: Dengue

C: AIDS

D: Bird flu



Correct Option: A  [ Swine flu ]

Remark:

Swine Flu is caused by the H1N1 virus, a subtype of the Influenza A virus. It primarily affects the respiratory system and is transmitted from person to person through droplets from coughs or sneezes. Symptoms include fever, cough, sore throat, body aches, and fatigue. The H1N1 pandemic in 2009 was declared a global health emergency by the World Health Organization (WHO).

Other options (for context)

  • Dengue: Caused by the Dengue virus, transmitted by Aedes mosquitoes.
  • AIDS: Caused by the HIV (Human Immunodeficiency Virus), not H1N1.
  • Bird flu: Caused by the H5N1 virus, not H1N1.
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