Showing 961–980 of 2717

Q961.Dioptre is used to measure ?

Easy
A Lens refractive power
B Luminous intensity
C Power
D Distance of heavenly bodies
General MCQs PPSC

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.

Q962.Dioptre is used to measure?

Easy
A optical power
B luminous intensity
C power
D distance of heavenly bodies
General MCQs PPSC

Correct Answer: A

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

Q963.Disease beri beri is because of____?

Easy
A Lack of green vegetables in diet
B Use of milled rice
C Deficiency of calcium in bones
D Poor use of citrus fruits
Human Body & Health PPSC

Correct Answer: B

Disease beri beri is because of Use of milled rice. The named agent or condition produces the characteristic biological changes associated with the disease.

Q964.Disease which transferred from animal to Human is____?

Easy
A Sporadic
B Epidemic
C Endemic
D Zoonosis
Human Body & Health PPSC

Correct Answer: D

Disease which transferred from animal to Human is Zoonosis. The named agent or condition produces the characteristic biological changes associated with the disease.

Q965.Disolved oxygen (DO) in water should be?

Easy
A 400 to 800 ppm
B 4000 to 8000 ppm
C 0.4 to 0.5 ppm
D 4 to 5 ppm
General MCQs PPSC

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.

Q966.Dolly is the name of the ?

Easy
A First cloned sheep
B First cloned monkey
C First test-tube baby
D First human fossil
General MCQs PPSC

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.

Q967.Dr. Abdus Salam of Pakistan was one of the contributors of the unification of ____?

Easy
A Electromagnetic force and gravitational force
B Electromagnetic force and weak nuclear force
C Gravitational force and weak nuclear force
D Weak nuclear force and strong nuclear force
General MCQs PPSC

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.

Q968.Dr. James Watson discovered the structure of DNA in ____?

Easy
A 1953
B 1955
C 1957
D 1857
General MCQs PPSC

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.

Q969.During a total solar eclipse the rate of Photosynthesis____?

Easy
A Increase
B Decrease
C Remain Constant
D None of them
Space & Astronomy PPSC

Correct Answer: B

During a total solar eclipse the rate of Photosynthesis Decrease. This description follows from the defining characteristics and established facts associated with the subject.

Q970.During a total solar eclipse there is most likely to be____?

Easy
A A decrease in the rate of photosynthesis
B An increase in the rate of photosynthesis
C A decrease in the rate of respiration
D No effect on either photosynthesis or respiration
Space & Astronomy PPSC

Correct Answer: A

During a total solar eclipse there is most likely to be A decrease in the rate of photosynthesis. This description follows from the defining characteristics and established facts associated with the subject.

Q971.During rainy season Wooden doors are difficult to open or closure because of ____ ?

Easy
A Plasmolysis
B Imbibition
C Osmosis
D Diffusion
General MCQs PPSC

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.

Q972.During which process does heat transfer occur because of density differences____?

Easy
A Convection
B Radiation
C Conduction
D None of these
General MCQs PPSC

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.

Q973.During which process of energy exchange does cold air displace warmer air?

Easy
A Convection
B Radiation
C Conduction
D None of these
General MCQs PPSC

Correct Answer: A

During which process of energy exchange does cold air displace warmer air: Convection. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Q974.During winter in cold countries, the ____ is mixed to melt the ice on the icy roads.

Easy
A Salt
B Chlorine
C Carbon dioxide
D Water
Physical Science PPSC

Correct Answer: A

During winter in cold countries, the Salt is mixed to melt the ice on the icy roads. This description follows from the defining characteristics and established facts associated with the subject.

Q975.Earth is closest to the sun every year in early ____, when it’s winter for the Northern Hemisphere. We’re farthest away from the sun in early ____, during our Northern Hemisphere summer.

Easy
A January – July
B June – December
C July – January
D December – June
Space & Astronomy PPSC

Correct Answer: A

Earth is closest to the Sun in early January, at perihelion, and farthest away in early July, at aphelion. This difference occurs because Earth follows a slightly elliptical orbit.

Q976.Earth revolves around the sun from?

Easy
A East to West
B West to East
C South to North
D North to South
Space & Astronomy PPSC

Correct Answer: B

Earth revolves around the sun from: West to East. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Q977.Earthquakes occur most frequently at ____?

Easy
A Plate boundaries
B Plate surface
C Ocean beds
D All of the above
Earth & Atmosphere PPSC

Correct Answer: A

Earthquakes occur most frequently at Plate boundaries. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Q978.Echo is a ____ of sound?

Easy
A Reflection
B Refraction
C Interference
D
General MCQs PPSC

Correct Answer: A

Echo is a Reflection of sound. This description follows from the defining characteristics and established facts associated with the subject.

Q979.Edward Genner discovered ‘vaccine’ in____?

Easy
A 1796
B 1978
C 1686
D 1933
General MCQs PPSC

Correct Answer: A

Edward Genner discovered ‘vaccine’ in 1796. Historical scientific accounts credit this person, place, or event with the development described.

Q980.EEG is used for diagnosing ailments connected with?

Easy
A Heart
B Brain
C Kidneys
D Lungs
General MCQs PPSC

Correct Answer: B

EEG is used for diagnosing ailments connected with: Brain. Its design and operating principle allow it to perform the stated function.