General MCQs

Correct Answer: B

The name of the biggest part of human brain is Cerebrum. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: A

The name of the branch of the science that studies the ocean is Oceanography. Its geographic position or physical characteristics account for the description given.

Correct Answer: B

The name of the central part of the earth is Core. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: A

The name of the chart with letters in multiple rows, used for an eye test is Snellen Chart. Its design and operating principle allow it to perform the stated function.

Correct Answer: D

What is the number of known crystalline phases of water 18. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: C

The percentage of salt water on earth surface is 97%. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: D

The percentage of water present in our brain is 73%. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: B

The range, in hertz, of the normal human hearing is 20 Hz to 20 kHz. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

The scientific name of flying fish is Exocoetidae. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: B

The symbol of Gold is Au. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: D

The warmest Ocean is Indian Ocean. Its geographic position or physical characteristics account for the description given.

Correct Answer: B

The wavelength of visible spectrum: is 3900-7600A. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: A

The weight of the average human brain is 1.2 to 1.4 Kg. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.

Correct Answer: A

The Red Sea is commonly identified as the world’s warmest sea. Its hot climate, high evaporation, and restricted exchange with the open ocean keep its waters unusually warm.

Correct Answer: A

Total area of the earth is 510.94 million km². Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: C

Used in making of alloys is Chromium. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: D

What is/are the basic purpose(s) of dams: All of the above. Each listed statement describes a valid part of the same concept, so they apply together.

Correct Answer: C

What makes dark matter invisible to telescope: Dark matter does not interact with electromagnetic force. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: B

What measurement scale is used to determine wind speed: Beaufort Scale. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: A

What method of energy transfer requires no medium for transfer: Radiation. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.