Sound cannot travel through __________...? Mcqs

PPSC Past Papers

Latest MCQs

Sound cannot travel through __________...?

(A) Solid
(B) Liquid

(C) Gases
(D) Vaccum

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The variety of coal in which the deposit contains recognizable traces of the original plant material is____________...?

(A) bitumen
(B) anthracite

(C) lignite
(D) peat

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Sound travels about ___________times faster in water than in air....?

(A) 2
(B) 3

(C) 4
(D) 5

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Microphone converts sound energy into ___________...?

(A) Microwaves
(B) Electrical signals

(C) Optical Signals
(D) Heat energy

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The first organism on earth were _______________...?

(A) autotrophs
(B) heterotrophs

(C) saprotrophs
(D) none of these

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A colour blind person cannot see ______...?

(A) Anything
(B) Red

(C) White
(D) Black

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Vitamin A is found in the____________...?

(A) Green vegetables
(B) white vegetables

(C) Yellow vegetables
(D) Red vegetables

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Tibia is a bone found in the ____________...?

(A) Skull
(B) Arm

(C) Leg
(D) Face

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Reflex actions in head region are under the control of___________...?

(A) Brain
(B) Spinal cord

(C) both a & b
(D) non of the above

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Cancer can be treated by ___________...?

(A) Antibiotics & vaccines
(B) Radiotherapy & antibiotics

(C) Chemotherapy & radiotherapy
(D) Antibiotics & Chemotherapy

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The main cause of floods in the river is__________...?

(A) Heavy snowfall
(B) Earthquakes

(C) Deforestation
(D) Construction of dams

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In general, Comets have __________ orbits...?

(A) Elliptical
(B) Highly elliptical

(C) Circular
(D) Parabolic

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Sound waves are _________ waves....?

(A) Transverse
(B) Electromagnetic

(C) Longitudinal
(D) None of these

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The earth revolves around the sun at a speed of__________...?

(A) 18.5 km/sec
(B) 26.6 km/sec

(C) 29 km/sec
(D) 31.9 km/sec

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

(A) Salt
(B) Chlorine

(C) Carbon dioxide
(D) Water

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The process by which air flows from one location in the atmosphere to another is called __________...?

(A) Convection
(B) Radiation

(C) Conduction
(D) Electromagnetic Induction

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The blind spot is located at the ___________ of the eye ...?

(A) pupil
(B) vitreous humor

(C) aqueous humor
(D) optic disc

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