Railways General Science & Technology Mechanics Sample Paper

done Mechanics-I Sample Test Paper-1 Total Questions - 20    [Download]

• question_answer1)
  Two bodies of different masses say 1 kg and 5 kg are dropped simultaneously from a tower. They will reach the ground
  A)
   Simultaneously
  done clear
  B)
   The heavier one arriving earlier
  done clear
  C)
   The lighter one arriving earlier
  done clear
  D)
   Cannot say, the information is insufficient.
  done clear
  View Answer play_arrow

• question_answer2)
  The numerical ratio of displacement to distance for a moving object is
  A)
   Always less than 1
  done clear
  B)
   always equal to 1
  done clear
  C)
   Always more than 1
  done clear
  D)
   equal to less than 1
  done clear
  View Answer play_arrow

• question_answer3)
  A man is walking from east to west on a level rough surface. The frictional force on the man is directed
  A)
   From the west to east
  done clear
  B)
   from the east to west
  done clear
  C)
   Along the north
  done clear
  D)
   along the west
  done clear
  View Answer play_arrow

• question_answer4)
  A parrot is sitting on the floor of a closed glass cage which is in a boy's hand. If the parrot starts flying with a constant speed, the boy will feel the weight of the cage as
  A)
   Unchanged
  done clear
  B)
   reduced
  done clear
  C)
   Increased         
  done clear
  D)
   nothing can be said
  done clear
  View Answer play_arrow

• question_answer5)
  The working principle of a washing machine is:
  A)
   Centrifugation
  done clear
  B)
   dialysis
  done clear
  C)
   Reverse osmosis
  done clear
  D)
   diffusion
  done clear
  View Answer play_arrow

• question_answer6)
  If a body is moving at constant speed in a circular path, its
  A)
   Velocity is constant and its acceleration is zero
  done clear
  B)
   Velocity and acceleration are both changing direction only
  done clear
  C)
   Velocity and acceleration are both increasing
  done clear
  D)
   Velocity is constant and acceleration is changing direction
  done clear
  View Answer play_arrow

• question_answer7)
  When a motorcar makes a sharp turn at a high speed, we tend to get thrown to one side because
  A)
   We tend to continue in our straight line motion
  done clear
  B)
   An unbalanced force is applied by the engine of the motorcar changes the direction of motion of the motorcar
  done clear
  C)
   We slip to one side of the seat due to the inertia of our body
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer8)
  A hockey player pushes the ball on the ground. It comes to rest after travelling certain distance because
  A)
   player stops pushing the ball
  done clear
  B)
   Unbalanced force action on the wall
  done clear
  C)
   Ball moves only when pushes
  done clear
  D)
   Opposing force acts on the body.
  done clear
  View Answer play_arrow

• question_answer9)

  A body having zero speed

  (i) Is always under rest

  (ii) Has zero acceleration

  (iii) Has uniform acceleration

  (iv) Always under motion

  A)
   (i) and (ii) only
  done clear
  B)
   (ii) and (iii) only
  done clear
  C)
   (i) and (iii) only   
  done clear
  D)
          (i),(ii) and (iii)
  done clear
  View Answer play_arrow

• question_answer10)
  Two balls A and B of same masses are thrown from the top of the building. A, thrown upward with velocity V and B, thrown downward with velocity V, then
  A)
   Velocity of A is more than B at the ground
  done clear
  B)
   Velocity of B is more than A at the ground
  done clear
  C)
   Both A and B strike the ground with same velocity
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer11)
  Which of the following curves do not represent motion in one dimension?
  A)
    
  done clear
  B)
    
  done clear
  C)
            
  done clear
  D)
    
  done clear
  View Answer play_arrow

• question_answer12)
  A hunter aims at a monkey sitting on a free at a considerable distance. At the instant he fires at it, the monkey drops. Will the bullet hit the monkey?
  A)
   No      
  done clear
  B)
          Yes
  done clear
  C)
   Sometimes       
  done clear
  D)
   Never
  done clear
  View Answer play_arrow

• question_answer13)
  A car sometimes overturns while taking a turn. When it overturns, it is
  A)
   The inner wheel which leaves the ground first
  done clear
  B)
   The outer wheel which leaves the ground first
  done clear
  C)
   Both the wheel leave the ground simultaneously
  done clear
  D)
   Either wheel will leave the ground first
  done clear
  View Answer play_arrow

• question_answer14)
  A cyclist taking turn bends inwards while a car passenger taking the same turn is thrown outwards. The reason is
  A)
   Car is heavier than cycle
  done clear
  B)
   Car has four wheels while cycle has only two
  done clear
  C)
   Difference in the speed of the two
  done clear
  D)
   Cyclist has to counteract the centrifugal force while in the case of car only the passenger is thrown by this force
  done clear
  View Answer play_arrow

• question_answer15)
  Which is a suitable method to decrease friction?
  A)
   Polishing          
  done clear
  B)
   Lubrication
  done clear
  C)
   Ball bearing      
  done clear
  D)
   All of these
  done clear
  View Answer play_arrow

• question_answer16)
  A cricketer lowers his hands while holding a catch because
  A)
   The momentum decreases with time
  done clear
  B)
   The velocity decreases with time
  done clear
  C)
   The force decreases as time increases
  done clear
  D)
   It is a style of holding a catch
  done clear
  View Answer play_arrow

• question_answer17)
  Depression on sand is more when you are standing than when you are lying down, because
  A)
   In standing position, for equal thrust, area is smaller so pressure is more
  done clear
  B)
   In lying position, more area is involved so thrust is less and pressure is more
  done clear
  C)
   Thrust is more in standing position
  done clear
  D)
   Centre of gravity lowers down while lying down, so pressure is more
  done clear
  View Answer play_arrow

• question_answer18)
  A ladder is more apt to slip when you are high up on its rung than when you are just begin to climb. Why?
  A)
   When you are high up, the moment offered tending to rotate the ladder about its base increase, while in the latter case, the moment of inertia is insufficient to cause slipping.
  done clear
  B)
   When you are high up, the ladder is in unstable, equilibrium
  done clear
  C)
   As you climb up, your potential energy increases
  done clear
  D)
   When you are high up, the centre of gravity of the system shifts upwards so the ladder is unstable, while in the latter case the system is more stable
  done clear
  View Answer play_arrow

• question_answer19)
  Going 50 m to the south of her house, Radhika turns left and goes another 20 m. Then turning to the north, she goes 30 m and then starts walking to her house. In which direction is she walking now?
  A)
   North West
  done clear
  B)
   North
  done clear
  C)
   South East       
  done clear
  D)
   East
  done clear
  View Answer play_arrow

• question_answer20)
  In which of the following cases, the net force is not zero?
  A)
   A kite skill fully held stationary in the sky.
  done clear
  B)
   A ball falling freely from a height
  done clear
  C)
   An aeroplane rising upwards at an angle of \[45{}^\circ \]with the horizontal with a constant speed
  done clear
  D)
   A cork floating on the surface of water
  done clear
  View Answer play_arrow