Free Objective Solved Question on Geology

Free Objective Solved Question on Geology
Geology MCQ Practice Solved Questions
Q.1 : The magnetic theory for the origin of the earth was proposed by :
(a) Moulton and chamberlin
(b) Kant and laplace
(c) Prof. F. Hoyle
(d) G.P. Kuiper.
Answer ( C)

Q.2 : The Big-band theory has been given for:
(a) Origin of the Earth
(b) lsostasy
(c) Plate-tectonics
(djl Earthquake
Answer (A )

Q. 3 : The material is pulled out of the sun by an external force refers to :
(a) Evolutionary theories
(b) Catastrophic theories
(c) cosmic theories
(d) None of the above.
Answer (B )

Q.4 : Choose the correct statements regarding black hole :
(a) lt is a result of compression and collapse of matter.
(b) lt is an area whose gravitational tield is so strong that nothing can escape from it.
(c) Gravitational forces are infinitely strong along the edges of a-blackhole.
(d) All are correct.
Answer ( D)

Q.5 : The fastest planet in the solar system is :
(a) Neptune
(b) Pluto
(c) Venus
(d) Jupiter
Answer (B)

Q. 6 : The atmosphere of early period was rich in :
(a) O2, CO2 and N2
(b) O2 and CO2
(c) CO2, methane and nitrogen
(d) O2, CO2 and SO2.
Answer (C)

Q. 7 : What is the maximum concentration of ozone in the ozone layer:
(a) 0.1 ppm
(b) 0.2 ppm
(c) 0.5 ppm
(d) 0.8 ppm
Answer (C)
Q. 8 : Which ultraviolet rays are most harmful for the human beings :
(a) Ultraviolet - A
(b) Ultraviolets - B
(c) Ultraviolets - C
(d) All the above.
Answer (B)


Q.9: To determine age_ of the Earth, the fine sedimentary deposits of gracial origin are
used in :
(a) Carve clock method
(b) Sedimentation - clock method
(c) Salinity-clock method.
(d) None of the above.
Answer (a)

Q.10 : A thin sedimentary layer or pair of contrasting layers that represent the depositional
record of a single year is called :
(a) Venturi fact
(b) Verve
(c) Arete
(d) None of the above.
Answer (B)

Q. 11 :,Joly calculated the age of the earth by salinity-clock method as :
(a) 10 m.y.
(b) 100 m.y.
(c) 1000 m.y.
(d) None of the above.
Answer (B)

Q. 12 : The age of the earth has been estimated from lead ratios in materials is :
(a) About 3600 m.y.
(b) About 4600 m.y.
(c) About 5300 m.y.
(d) About 5500 m.y.
Answer ( B )

Q.13 : When U whose atomic weight is 238 and atomic number is 92 emitted an alpha
particle, then the daughter element thorium, will have atomic weight and atomic number
respectively: ,
(a) 237 and 92
(b) 236 and 92
(c) 235 and 90
(d) 234 and 90
Answer ( D)

Q.14: The radiation` in radioactive elements is detected by:

(a) Geiger counter
(b) Mass spectrometer
(c) Oscillometer
(d) None of the above.
Answer (A)

Q.15: Which is non-radiogenic lead:

(a)Pb204
(b) Pb 206
(C) Pb207
(d) Pb208
Answer (A )



Q.16 : How many alpha and beta particles are lost when U32 changes to Pb§2 :
(a) 6 alpha and 8 beta particles.
(b) 8 alpha and 6 beta particles.
(c) 10 alpha and 8 beta particles
(d) 12 alpha and 10 bet' particles.
Answer (B)

Q. 17: The half life of C 14 is:
(a) 5500 yrs
(b) 5570 yrs
(c) 5670 yrs
(d) 5775 yrs.
Answer (B)

Q.18: Which radioactive method is most suitable to determine age of recent formations :
(a) Uranium-lead method. _
(b) Rubidium - strontium method.
(c) Potassium - Argon method.
(d) carbon-14 method.
Answer ( D)

Q. 19: What are the Jovian planets :
(a) Jupiter and Saturn
(b) Jupiter, Saturn and Uranus if
(c) Jupiter, Saturn and Earth
(d) Jupiter, Saturn, Uranus’=and Pluto.
Answer (D)

Q. 20 : An ancient, deeply eroded impact feature on the earth’s solid surface produced by a
large meteorite is known as :
(a) Aulacogen
(b) Geoimpact,
(c) Astrobleme
(d) Plays.
Answer (C)