1) The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is
   A) Neon                                       C) Helium
   B) Argon                                      D) Krypton

2) Air bladder in fish acts as
    A) Accessory respiratory organ                 C) Hydrostatic organ
    B) Primary respiratory organ                     D) None of these

3) A black body can absorb radiations of 
    A) Higher wavelengths only             C) intermediate wavelengths
    B) all wavelengths                             D) lower wavelengths

4) Hemoglobin has highest affinity for
   A) Nitrogen                                   C) Oxygen
   B) Carbon dioxide                        D) Carbon monoxide

5) For a ray of light to suffer total internal reflection it has to pass from
   A) air to glass                             C) water to glass
   B) glass to water                        D) air to water

6) A water tank appears shallower when it is viewed from the top due to
  A) refraction                                       C) Total internal reflection
  B) rectilinear propagation of light       D) reflection

7) The atmospheric layer closest to the earth is 
  A) Ionosphere                              C) Mesoshphere
  B) Hydrosphere                           D) Troposphere

8) Bleaching powder is  prepared by passing
   A) Chlorine over quick lime
   B) Carbon dioxide over slacked lime
   C) Chlorine over slaked lime
   D) Oxygen over slaked lime

9) Which one of  the  following is the smallest endocrine gland in human body
  A) Pancreas                                C) Adrenal
  B) Pituitary                                D) Liver

10) The newton First law is also called as
A) Law of moments
B) Law of inertia
C) Law of momentum
D) Law of pascal

11) The chemical substance present in bones and teeth is
A) Calcium chloride                                  B) Calcium borate
C) Calcium Phosphate                              D) Calcium sulphate

12) Lime water is kept in the air, it turns milky due to presence of 
  A) Sulphur dioxide                                    C) Nitrogen
  B) Carbon dioxide                                     D) Oxygen

13) What are the signals that inform the operating system that some activity has taken placed
 A) Handlers                                 C) Informers
 B) Interrupts                                D) Events

14) Contours are the line which are drawn joining places having
 A) equal rain fall                                       C) Equal temperature
 B) Equal height from mean sea level      D) Equal air pressure

15) Soil formed by leaching and oxidation is
 A) Laterite soil                              C) Red soil
 B) White soil                                D) Black soil

16) The Akaal Takht was built by
A) Guru Nanak                           C) Guru Teg Bahadur
B) Guru Ramdas                         D) Guru Hargovind

17) The demand for labour is called
A) Factory demand                     C) Derived demand
B) Direct demand                       D) Market demand

18) Who was the founder of the lodhi Dynasty
A) Ibrahim lodhi                        C) Ghazi malik
B) Bahlol Lodhi                         D) Babur

19) Which river in India flows in a rift valley
 A) Krishna                                C) Cauvery
 B) Jhelum                                  D) Narmada

20) Who was the first to use the term 'state'
A) Machiavelli                         C) Plato
B) Hobbes                                D) Aristotle
TOUGH GK QUIZ 1 RAILWAYS TOUGH GK QUIZ 1 RAILWAYS Reviewed by Unknown on September 03, 2018 Rating: 5

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