RRB NTPC GS Properties of Matters Mock Test General Awareness General Science Group D NTPC RRB November 14, 2020November 14, 2020TestsKindly Enter your Name and Email Address then Press Next to Start your Test. Name Email Address 1. Two cubes of equal mass, one made of iron and the other of aluminium are immersed in water and weighed. Under such caseDeselect AnswerThe weight of aluminium cube will be less than that of the iron cubeThe two weights will be equalThe weight of the iron cube will be less than that of the aluminium cubeThe data provided is insufficient2. Rain drops are falling with a constant speed by the time they reach the ground becauseDeselect AnswerRain drops originate in outer space where the gravitational forces are negligibleThe force due to air resistance increases with the speed of the rain drops until it balances the gravitational forceRain drops are too light and hence not affected by acceleration due to gravityThe force due to air resistance is constant and balances the gravitational force3. The spherical shape of rain-drop is due toDeselect AnswerDensity of the liquidSurface tensionAtmospheric pressureGravity4. A large ship can float but a steel needle sinks because ofDeselect AnswerViscositySurface tensionDensityNone of these5. Air is blown through a hole on a closed pipe containing liquid. Then the pressure willDeselect AnswerIncrease on sidesIncrease downwardsIncrease in all directionsNever increases6. The rain drops falling from the sky neither injure us nor make holes on the ground because they move withDeselect Answerconstant accelerationvariable accelerationvariable speedconstant terminal velocity7. Hydraulic brakes are based onDeselect AnswerDulong and Petit’s lawPascal’s lawPressure lawDalton’s law of partial pressure8. A liquid flows through a non-uniform pipe. The pressure in the pipe will beDeselect Answerlower where the cross-section is smallerthe same throughout the pipehigher where the cross-section is smallerhigher where velocity of the liquid is smaller9. Velocity of water in a river isDeselect AnswerSame everywhereMore in the middle and less near its banksLess in the middle and more near its banksIncrease from one bank to other bank10. A small wooden block is floating in a tub of water. The water is gradually heated. The volume of the wooden block visible above the water levelDeselect AnswerFluctuatesDecreaseIncreasesRemains the same11. The working of an atomizer depends uponDeselect AnswerBernoulli’s theoremBoyle’s lawArchimedes principleNewton’s law of motion12. An iceberg is floating in the sea. Out of 10 parts of its mass, how many will remain above the surface of the water ?Deselect AnswerThree partsTwo partsOne partFive parts13. An ice block floats in a liquid whose density is less than water. A part of block is outside the liquid. When whole of ice has melted, the liquid level willDeselect AnswerRiseGo downRemain sameFirst rise then go down14. Construction of a submarrine is based onDeselect AnswerBernoulli’s theoremPascal’s lawArchimedes’s principleNone of these15. The clouds float in the atmosphere because of their lowDeselect Answerpressurevelocitytemperaturedensity16 out of 15Click Submit Button to complete the Test.Join Our Telegram Channel for Latest Updates Click Here! Time is Up!RRB NTPC GS Properties of Matters Mock TestJoin Our Telegram Channel for Latest Updates Click Here!