General MCQs

Correct Answer: A

Virus was discovered by: Dmitry Ivanovsky. Historical scientific accounts credit this person, place, or event with the development described.

Correct Answer: C

Washing machine is working on the principle of: Centrifugatio n. Its design and operating principle allow it to perform the stated function.

Correct Answer: C

Water covers 71% of the Earth’s surface. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: D

Water has been discovered on which potentially habitable super-Earth: K2-18b. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: B

Water has high density and minimum volume at 4°C. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: B

Water has maximum density at 4°C. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: C

Water is 50 times more viscous than Gases. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

Water is a good solvent of ionic salts because: It has a high dipole moment. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Water is a highly effective coolant for a car engine because Water has very high specific heat capacity. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: C

Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by Radiation. The inside water is heated by convection. A person sitting near the fire receives heat by Radiation. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: A

Water present in watermelon: 92%. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Water vapor is A gas. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

Water vapour beyond the dew point result in Condensation. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

WBCs are also called as Leukocytes. The term is defined by the subject, process, or characteristic described in the question.

Correct Answer: B

What amount of fats give energy of 9.3 K Calories: 1.0 gram. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: B

What animal has longest gestation period of about 640 to 660 days or 95 weeks of any land animal: Elephant. This is based on the organism’s established anatomy, behavior, or biological classification.

Correct Answer: B

Columns in Periodic table called are Group. The term is defined by the subject, process, or characteristic described in the question.

Correct Answer: A

What are rows in Periodic table called. The term is defined by the subject, process, or characteristic described in the question.

Correct Answer: A

Stars mainly made of are Balls of gass. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: D

The primary colors of Light are Red, Green, Blue. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.