MCQ 1 The time taken for light from the sun to reach the earth is 

(A) 499.720 secs (B) 499.012 secs (C) 489.720 secs (D) 489.012 secs

MCQ 2 The most powerful radio object in the universe after the sun is/are :

(A) Black holes (B) Quasars (C) Jupiter (D) Venus

MCQ 3 Which of the following planet shows the same size-bearing

(A) Earth - Mars (B) Mars Venus (C) Earth Venus (D) Venus - Mercury

MCQ 4 Choose the correct answer from the following statements

Theory  & Propounder

(A) Big Bang Theory 1) Dr. Allan Sandage

(B) Pulsating Universe Theory 2) AbbeGeoges Lemaitre

(C) Steady State Theory 3) Buffen

D) Dynamic Encounter THeory 4) Thomas Gold and Herman Bondi

(A) A-1 B-2, C-3, D-4 (B) A-1 B-2, C-4, D-3 (C) A-2 B-1, C-4, D-3 (D) A-2 B-1, C-3, D-4

MCQ 5 The Nebular Hypothesis was proposed by

(A) Kant (B) Laplace (C) Kant and Laplace together (D) Kant and Laplace independently

MCQ 6 The difference between the wquatorial and polar diametres of the earth is

(A) 21 km (B) 43 km (C) 56 km (D) 238 km

MCQ 7 Which of the following planets has the least density

(A) Earth (B) Mars (C) Saturn (D) Pluto

MCQ 8 The temperature of the MOHO beneath the continents range from 

(A) 700° C - 900 ° C (B) 500° C - 700 ° C (C) 200° C - 300 ° C (D) 150° C - 200 ° C

MCQ 9 Which of the following occupies the largest percentage of the crust by area is 

(A) Continential crust (B) Transitional crust (C) Oceanic crust (D) Oceanic and Transitional crust

MCQ 10 Which of the following is a second order discontinuity? 

(A) Upper Mantle Lower Mantle discontinuity (B) Mantle Core discontinuity (C) Crust Mantle discontinuity (D) None of the above

MCQ 11 The low velocity zone apart from reduced seismic velocities is also characterized by

(A) High heat flow and high electrical conductivity (B) High heat flow and low electrical conductivity (C) Low heat flow and high electrical conductivity (D) Low heat flow

MCQ 12 The linear magnetic anomalies occuring as parallel bands along many mors are most probably caused by the rocks of 

(A) Basaltic layer of the continental crust (B) Layer 1 of the oceanic crust (C) Ultramafic rocks of the mantle (D) Layer 2 of the oceanic crust

MCQ 13 The value of Rigidity modulus in the core is

(A) 1.0 x 10₁₂ dynes / cm₂ (B) 0.5 x 10₁₂ dynes / cm₂ (C) 15 x 10₁₂ dynes / cm₂ (D) None of the above

MCQ 14 The mantle material does not contribute to the magnetic anomalies because

(A) The temperature are above the curie point if a natural magnetic materials (B) It contains only ultramafic rocks which are essentially non magnetic (C) It doesn't contains abundant metallic ions to induce a magnetic field (D) it exhibits a more or less constant magnetic field

MCQ 15 Which of the following are most radioactive?

(A) Younger Acidic Rocks (B) Older Acidic Rocks (C) Younger Basic Rocks (D) Older Basic Rocks

MCQ 16 Mohorovicic Discontinuity is marked by :

(A) Abrupt decrease in the seismic wave velocities (B) Abrupt increase in the seismic wave velocities (C) Gradual increase in the seismic wave velocities (D) Gradual increase in the seismic wave velocities

MCQ 17 The oldest of all the scales devised to measure the intensity of ssismic waves is

(A) Ritcher Scale (B) Rossi - Forel Scale (C) Mercalli Scale (D) Beufort Scale

MCQ 18 The Mantle Transmission Zone at about 370 km - 720 km depth is 

(A) Found between the Moho and the Gutenberg layer of the earth (B) Overlain by the U Mantle and underlain by the outer core of the earth (C) Found between the Moho and the LVZ of the earth (D) Overlain by the U Mantle and underlain by the L Mantle of the earth