General MCQs

Correct Answer: C

The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a Richter scale. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: D

The instrument which measures very high temperature is Pyrometer. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: C

The ISS (International Space Station) orbits Earth about once every: 90 minutes at an altitude of about 400 km. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: D

The large plates of solar pannels are painted: Black. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

The lens used in a simple microscope is Convex. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: C

The lenses are used for the correction of: Both A & B. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: D

The light rays used for eliminating bacteria: ultra-violet radiation. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: A

The lowest temperature ever recorded on the Earth is –89.2 °C. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: B

The luster of diamond is due to Total internal reflection. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

The main constituent of hemoglobin is Iron. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

The main factor for determining a region’s climate is Latitude. Its geographic position or physical characteristics account for the description given.

Correct Answer: D

The major component of honey is Fructose. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: D

The major part of natural gas, petroleum and coal consists of: Methane. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: C

The maximum risk to air travel is from: Fogs. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

The melting point of ice is 00C. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

The mesosphere extends approximately from 50 km to 85 km above Earth. Temperature generally decreases with altitude through this atmospheric layer.

Correct Answer: B

The Microbes used in baking industry is Yeast. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

The Mirror used in the Automobiles are Convex. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: D

The most densest substance on the Earth is Osmium. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: B

The most important function of perspiration is Regulate body temperature. This is based on the organism’s established anatomy, behavior, or biological classification.