(151) Which is the largest organ in the human body?
- A. Liver
- B. Heart
- C. Skin
- D. Kidney
(152) Medulla oblongata is a part of human ?
- A. Heart
- B. Brain
- C. Liver
- D. Sex organ
(153) When a person enters a dark room from bright light he is not able to see clearly for a little while because the?
- A. Eye is unable to adjust itself immediatel y
- B. Retina becomes insensitive momentaril y
- C. Iris is unable to dilate the pupil immediatel y
- D. Distance between the lens and retina take time to adjust
(154) The Green House Effect is caused by an excess of ?
- A. Carbon dioxide
- B. Carbon monoxide
- C. Carbon tetrachlorid e
- D. None of the above
(155) Scalding with steam is more severe than scalding by boiling water because ?
- A. Steam can penetrate the skin
- B. Steam is at a higher temperatur e
- C. Steam contains more energy than boiling water
- D. Steam is at a higher pressure
(156) An instrument to detect the purity of milk is ?
- A. Lactometer
- B. Hygrometer
- C. Manometer
- D. Sonometer
(157) The atmosphere of moon consists of ?
- A. 90% Hydrogen, 10% Nitrogen
- B. 80%Nitroge n, 20% Hydrogen
- C. 60% Nitrogen, 40%inert gases
- D. None
(158) One of these scientists formulated basic laws of Geometry?
- A. Pythagorus
- B. Archimedes
- C. Aristotle
- D. None
(159) Vacuum tubes have been replaced by ?
- A. Conductors
- B. Diodes
- C. Transistors
- D. None of these
(160) The shape of the external ear is due to ?
- A. Elastic cartilage
- B. Fibrocartila ge
- C. Articular cartilage
- D. none
(161) When water is filled in a bottle and is allowed to freeze, the bottle breaks because
- A. Water expands on freezing
- B. Bottle contracts at freezing point
- C. temperatur e outside the bottle is less than that inside the bottle.
- D. None of the above
(162) are positively (+) charged particles?
- A. Neutrons
- B. Electrons
- C. Protons
- D. None of These
(163) 2017 Nobel Prize Currently Awarded in Physics is for ?
- A. Far Observation of Gravitation al Waves
- B. Far Observation of Gravitation al Weight
- C. First Observatio n of Gravitation al Waves
- D. Far Objectivity of Gravitation al Waves
(164) The speed of sound in air at sea level is approximately ?
- A. 300 meter per second
- B. 320 meter per second
- C. 340 meters per second
- D. 370 meter per second
(165) Deficiency of vitamin B1 is causes ?
- A. Rickets
- B. Bone Infection
- C. Beriberi
- D. Myopia
(166) What is the breathing rate of human being body?
- A. 15-11 minutes
- B. 16-20 minutes
- C. 25-26 minutes
- D. 32-35 minutes
(167) If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will?
- A. Increase over 10%
- B. Decrease by 10%
- C. Decrease by 0.5%
- D. Increase by 0.5%
(168) The common refrigerant used in domestic Refrigerator is ?
- A. Neon
- B. Spirit
- C. Freon/Am monia
- D. Methane
(169) PSR J0108-1431 is the closest known to Earth?
- A. Black hole
- B. Red giant
- C. Quasar
- D. Pulsar
(170) Oranges are rich source of ?
- A. Carbohydra tes
- B. Fats
- C. Proteins
- D. Vitamins
(171) Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally ?
- A. ionic substances
- B. metallic substances
- C. molecular solids
- D. covalent network solids
(172) Which of the following has the highest energy?
- A. gamma rays
- B. X-rays
- C. Ultra- violet radiation
- D. radio waves
(173) Approximately, how many times each day do our heart valves open and close normally?
- A. 10,000
- B. 1,00,000
- C. 1,50,000
- D. 2,00,000
(174) When a warm air is lifted off the surface in temperature depression it is called ?
- A. An occlusion
- B. A cold front
- C. An anticyclone
- D. A warm front
(175) The strength of wave action depends on all these EXCEPT:
- A. Currents in the sea
- B. Wind strength
- C. Depth of coastal water
- D. Height of waves