Railways General Science & Technology Thermal Properties of Matter / द्रव्य के तापीय गुण Sample Paper

done Properties of Matter Sample Test Paper-3 Total Questions - 20    [Download]

• question_answer1)
  An ice block floats in a liquid whose density is less than water. Apart of block is outside the liquid. When whole of ice has melted, the liquid level will
  A)
   Rise     
  done clear
  B)
                      Go down
  done clear
  C)
   Remain same   
  done clear
  D)
          First rise then go down
  done clear
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• question_answer2)
  The rain drops falling from the sky neither injure us nor make holes on the ground because they move with
  A)
   Constant acceleration
  done clear
  B)
   Variable acceleration
  done clear
  C)
   Variable speed
  done clear
  D)
   Constant terminal velocity
  done clear
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• question_answer3)
  A liquid flows through a non-uniform pipe. The pressure in the pipe will be
  A)
   Lower where the cross-section is smaller
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  B)
   The same throughout the pipe
  done clear
  C)
   Higher where the cross-section is smaller
  done clear
  D)
   Higher where velocity of the liquid is smaller
  done clear
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• question_answer4)
  The clouds float in the atmosphere because of their low
  A)
   Pressure           
  done clear
  B)
   velocity
  done clear
  C)
   Temperature     
  done clear
  D)
   density
  done clear
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• question_answer5)
  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 level
  A)
   Fluctuates        
  done clear
  B)
   Decrease
  done clear
  C)
   Increases          
  done clear
  D)
   Remains the same
  done clear
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• question_answer6)
  Hydraulic brakes are based on
  A)
   Dulong and Petit's law
  done clear
  B)
   Pascal's law
  done clear
  C)
   Pressure law
  done clear
  D)
   Dalton's law of partial pressure
  done clear
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• question_answer7)
  Two cubes of equal mass, one made of iron and the other of aluminium are immersed in water and weighed. Under such case
  A)
   The weight of aluminium cube will be less than that of the iron cube
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  B)
   The two weights will be equal
  done clear
  C)
   The weight of the iron cube will be less than that of the aluminium cube
  done clear
  D)
   The data provided is insufficient
  done clear
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• question_answer8)
  An iceberg is floating in the sea. Out of 10 parts of its mass, how many will remain above the surface of the water?
  A)
   Three parts       
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  B)
   Two parts
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  C)
   One part          
  done clear
  D)
   five parts
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• question_answer9)
  The relative densities of three liquids X, Y and Z are 0.7, 1.2 and 1.7 respectively. A small rod floats vertically just fully immersed in the liquid Y. Which of the following set of diagrams illustrates the equilibrium positions of the rod in the liquids X and Z?
  A)
   
  done clear
  B)
    
  done clear
  C)
    
  done clear
  D)
    
  done clear
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• question_answer10)
  Construction of a submarine is based on
  A)
   Bernoulli's theorem        
  done clear
  B)
   Pascal's law
  done clear
  C)
   Archimedes's principle    
  done clear
  D)
   None of these
  done clear
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• question_answer11)
  Rain drops are falling with a constant speed by the time they reach the ground because
  A)
   Rain drops originate in outer space where the gravitational forces are negligible
  done clear
  B)
   The force due to air resistance increases with the speed of the rain drops until it balances the gravitational force
  done clear
  C)
   Rain drops are too light and hence not affected by acceleration due to gravity
  done clear
  D)
   The force due to air resistance is constant and balances the gravitational force
  done clear
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• question_answer12)
  The spherical shape of rain-drop is due to
  A)
   Density of the liquid
  done clear
  B)
   Surface tension
  done clear
  C)
   Atmospheric pressure
  done clear
  D)
   Gravity
  done clear
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• question_answer13)
  Air is blown through a hole on a closed pipe containing liquid. Then the pressure will
  A)
   Increase on sides
  done clear
  B)
   Increase downwards
  done clear
  C)
   Increase in all directions
  done clear
  D)
   Never increases
  done clear
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• question_answer14)
  A large ship can float but a steel needle sinks because of
  A)
   Viscosity          
  done clear
  B)
   Surface tension
  done clear
  C)
   Density
  done clear
  D)
   None of these
  done clear
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• question_answer15)
  In the following figure is shown the flow of liquid through a horizontal pipe. Three tubes A, B and C are connected to the pipe. The radii of the tubes A, B and C at the junction are respectively 2 cm, 1 cm and 2 cm. It can be said that the
  A)
   Height of the liquid in the tube A is maximum
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  B)
   Height of one liquid in the tubes A and B is the same
  done clear
  C)
   Height of the liquid in the three tubes is the same
  done clear
  D)
   Height of the liquid in the tubes A and C is the same
  done clear
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• question_answer16)
  The working of an atomizer depends upon
  A)
   Bernoulli's theorem
  done clear
  B)
   Boyle's law
  done clear
  C)
   Archimedes principle
  done clear
  D)
   Newton's law of motion
  done clear
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• question_answer17)
  Velocity of water in a river is
  A)
   Same everywhere
  done clear
  B)
   More in the middle and less near its banks
  done clear
  C)
   Less in the middle and more near its banks
  done clear
  D)
   Increase from one bank to other bank
  done clear
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• question_answer18)
  To keep constant time, watches are fitted with balance wheel made of
  A)
   Invar
  done clear
  B)
   Stainless steel
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  C)
   Tungsten
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  D)
   Platinum
  done clear
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• question_answer19)
  Writing on blackboard with a piece of chalk is possible by the property of
  A)
   Adhesive force
  done clear
  B)
   Cohesive force
  done clear
  C)
   Surface tension
  done clear
  D)
   Viscosity
  done clear
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• question_answer20)
  The most characteristic property of a liquid is
  A)
   Elasticity
  done clear
  B)
   Fluidity
  done clear
  C)
   Formlessness
  done clear
  D)
   Volume conservation
  done clear
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