General Science

Which one of the following causes kala-azar?

  1. Ascaris
  2. Trypanosoma
  3. Leishmania
  4. Bacteria

Which one of the following diseases is caused by protozoans?

  1. Malaria
  2. Influenza
  3. AIDS
  4. Cholera

Which one of the following disease is not transmitted by mosquito?

  1. Brain fever
  2. Malaria
  3. Typhoid
  4. Dengue

Which one of the following is not a bacterial disease

  1. Cholera
  2. Tuberculosis
  3. Anthrax
  4. Influenza

Which one of the following is not a viral disease?

  1. Dengue
  2. AIDS
  3. Typhoid
  4. Influenza

Sound travels in air if

  1. particles of medium travel from one place to another
  2. there is no moisture in the atmosphere
  3. disturbance moves
  4. both particles as well as disturbance travel from one place to another

A body is falling from a height h. After it has fallen a height h/2, it will possess

  1. only potential energy
  2. only kinetic energy
  3. half potential and half kinetic energy
  4. more kinetic and less potential energy

The work done on an object does not depend upon the

  1. displacement
  2. force applied
  3. angle between force and displacement
  4. initial velocity of the object

An iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same

  1. acceleration
  2. momenta
  3. potential energy
  4. kinetic energy

In case of negative work the angle between the force and displacement is

  1. 45°
  2. 90°
  3. 180°

A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car

  1. does not change
  2. becomes twice to that of initial
  3. becomes 4 times that of initial
  4. becomes 16 times that of initial

When a body falls freely towards the earth, then its total energy

  1. increases
  2. decreases
  3. remains constant
  4. first increases and then decreases

An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight of the liquid displaced by the object will be

  1. 2 N
  2. 8 N
  3. 10 N
  4. 12 N

The weight of an object at the centre of the earth of radius R is

  1. zero
  2. infinite
  3. R times the weight at the surface of the earth
  4. 1/R2 times the weight at surface of the earth

The value of quantity G in the law of gravitation

  1. depends on mass of earth only
  2. depends on radius of earth only
  3. depends on both mass and radius of earth
  4. is independent of mass and radius of the earth

Law of gravitation gives the gravitational force between

  1. the earth and a point mass only
  2. the earth and Sun only
  3. any two bodies having some mass
  4. two charged bodies only

The gravitational force between two objects is F. If masses of both objects are halved without changing distance between them, then the gravitational force would become

  1. F/4
  2. F/2
  3. F
  4. 2F

The value of acceleration due to gravity

  1. is same on equator and poles
  2. is least on poles
  3. is least on equator
  4. increases from pole to equator

Two objects of different masses falling freely near the surface of moon would

  1. have same velocities at any instant
  2. have different accelerations
  3. experience forces of same magnitude
  4. undergo a change in their inertia

Rocket works on the principle of conservation of

  1. mass
  2. energy
  3. momentum
  4. velocity

An object of mass 2 kg is sliding with a constant velocity of 4 m s–1 on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

  1. 32 N
  2. 0 N
  3. 2 N
  4. 8 N

A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is

  1. accelerated
  2. uniform
  3. retarded
  4. along circular tracks

The inertia of an object tends to cause the object

  1. to increase its speed
  2. to decrease its speed
  3. to resist any change in its state of motion
  4. to decelerate due to friction

A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goal keeper to

  1. exert larger force on the ball
  2. reduce the force exerted by the ball on hands
  3. increase the rate of change of momentum
  4. decrease the rate of change of momentum

Slope of a velocity – time graph gives

  1. the distance
  2. the displacement
  3. the acceleration
  4. the speed

Which of the following figures represents uniform motion of a moving object correctly?

Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m s–1. It implies that the boy is

  1. at rest
  2. moving with no acceleration
  3. in accelerated motion
  4. moving with uniform velocity

From the given v – t graph, it can be inferred that the object is

 

  1. in uniform motion
  2. at rest
  3. in non-uniform motion
  4. moving with uniform acceleration

If the displacement of an object is proportional to square of time, then the object moves with

  1. uniform velocity
  2. uniform acceleration
  3. increasing acceleration
  4. decreasing acceleration

A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is

  1. u/g
  2. u2/2g
  3. u2/g
  4. u/2g

Well defined nucleus is absent in

  1. blue green algae
  2. diatoms
  3. algae
  4. yeast

In taxonomic hierarchy family comes between

  1. Class and Order
  2. Order and Genus
  3. Genus and Species
  4. Division and Class

Real organs are absent in

  1. Mollusca
  2. Coelenterata
  3. Arthropoda
  4. Echinodermata

Corals are

  1. Poriferans attached to some solid support
  2. Cnidarians, that are solitary living
  3. Poriferans present at the sea bed
  4. Cnidarians that live in colonies

The locomotory organs of Echinodermata are

  1. tube feet
  2. muscular feet
  3. jointed legs
  4. parapodia

Organisms without nucleus and cell organelles belong to

  1. fungi
  2. protista
  3. cyano bacteria
  4. archae bacteria

Select the correct option:

  1. (i) and (ii)
  2. (iii) and (iv)
  3. (i) and (iv)
  4. (ii) and (iii)

Pteridophyta do not have

  1. root
  2. stem
  3. flowers
  4. leaves

Which among the following have scales?

  1. Amphibians
  2. Pisces
  3. Reptiles
  4. Mammals

Select the correct option:

  1. (i) and (iii)
  2. (iii) and (iv)
  3. (ii) and (iii)
  4. (i) and (ii)

Elephantiasis is caused by

  1. Wuchereria
  2. Pinworm
  3. Planarians
  4. Liver flukes

Which one is a true fish?

  1. Jellyfish
  2. Starfish
  3. Dogfish
  4. Silverfish

Which among the following has specialised tissue for conduction of water?

  1. Thallophyta
  2. Bryophyta
  3. Pteridophyta
  4. Gymnosperms

Select the correct option:

  1. (i) and (ii)
  2. (ii) and (iii)
  3. (iii) and (iv)
  4. (i) and (iv)

The water conducting tissue generally present in gymnosperm is

  1. vessels
  2. sieve tube
  3. tracheids
  4. xylem fibres

Cork cells are made impervious to water and gases by the presence of

  1. cellulose
  2. lipids
  3. suberin
  4. lignin

Flexibility in plants is due to

  1. collenchyma
  2. sclerenchyma
  3. parenchyma
  4. chlorenchyma

Which of the following does not lose their nucleus at maturity?

  1. Companion cells
  2. Red blood cells
  3. Vessel
  4. Sieve tube cells

The dead element present in the phloem is

  1. companion cells
  2. phloem fibres
  3. phloem parenchyma
  4. sieve tubes

Which of the following cells is found in the cartilaginous tissue of the body?

  1. Mast cells
  2. Basophils
  3. Osteocytes
  4. Chondrocytes

The muscular tissue which function throughout the life continuously without fatigue is

  1. skeletal muscle
  2. cardiac muscle
  3. smooth muscle
  4. voluntary muscle

Which of the following helps in repair of tissue and fills up the space inside the organ?

  1. Tendon
  2. Adipose tissue
  3. Areolar
  4. Cartilage

Nerve cell does not contain

  1. axon
  2. nerve endings
  3. tendons
  4. dendrites

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