General MCQs

Correct Answer: A

Day and night are the results of Earth rotation around its axis. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Deficiency of zinc causes loss of appetite and poor growth. An inadequate supply disrupts the biological process that depends on this nutrient or substance and produces the stated condition.

Correct Answer: C

Deficiency of Iodine causes: Goiter. An inadequate supply disrupts the biological process that depends on this nutrient or substance and produces the stated condition.

Correct Answer: C

Detergents dissolved in water help in cleaning clothes by Reducing the surface tension of water. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

Deuterium differs from Hydrogen in having: Same atomic number and different atomic weight. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Development of calf muscles in ladies who wear high heel sandals is common example of: Artificial selection. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Development of calf muscles in ladies who wear high heels is a common example of: inheritance of acquired character. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Diamond is an allotropic form of Carbon. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Diamond is harder than Graphite because of Difference in crystalline Structure. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: C

Dielectric constant of water is 80. The effect results from the movement of charge or the interaction of electric and magnetic fields.

Correct Answer: D

Diesel engine was discovered by Rudolf Diesel. Historical scientific accounts credit this person, place, or event with the development described.

Correct Answer: A

Digestion of food is completed in the small intestine. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Dioptre is used to measure: Lens refractive power. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: A

Dioptre is used to measure: optical power. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: D

Disolved oxygen (DO) in water should be: 4 to 5 ppm. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Dolly is the name of the: First cloned sheep. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: B

Dr. Abdus Salam of Pakistan was one of the contributors of the unification of Electromagnetic force and weak nuclear force. Abdus Salam of Pakistan was one of the contributors of the unification of Electromagnetic force and weak nuclear force. This description follows from the defining characteristics and established facts associated with the subject.

Correct Answer: A

Dr. James Watson discovered the structure of DNA in 1953. James Watson discovered the structure of DNA in 1953. Historical scientific accounts credit this person, place, or event with the development described.

Correct Answer: B

During rainy season Wooden doors are difficult to open or closure because of Imbibition. Its geographic position or physical characteristics account for the description given.

Correct Answer: A

During which process does heat transfer occur because of density differences Convection. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.