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Learn SSC CGL MCQs with answers [Page -175 of Department 105]
-1759) Who invented air conditioning?
(A) Wills Carrier
(B) Erik Rotheim
(C) Nicolas Joseph Cugnot
(D) Joseph Lister
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-1758) What is the S.I. Unit of entropy?
(A) 0.01 cm
(B) 0.02 cm
(C) 0.001 cm
(D) 10^-6 m
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
-1757) What is the approximate value of escape velocity for the earth?
(A) 11 km/s
(B) 19.5 km/s
(C) 56.5 km/s
(D) 50 km/s
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-1756) ______ was the inventor of cosmic rays.
(A) Bruno Rosi
(B) Copernicus
(C) Edvin Hebel
(D) Victor Hess
Correct Answer - Option
(D)
No Explanation found. Add Explanation and get +2 points.
-1755) The latent heat of fusion of ice is ____ cal/g.
(A) 69.7
(B) 76.9
(C) 79.7
(D) 68.9
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
-1754) The principle employed in sonar is
(A) echo
(B) production of sound
(C) absorption of sound
(D) sound vibration
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-1753) The earth’s magnetic field always has a vertical component except at the
(A) Magnetic equator
(B) Latitude 45°
(C) Magnetic poles
(D) Geographic north pole
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-1752) A mirror produces magnified erect image of an object. The nature of the mirror is
(A) Convex
(B) Concave
(C) Plane
(D) Neither concave nor convex
Correct Answer - Option
(B)
No Explanation found. Add Explanation and get +2 points.
-1751) A 100 watt bulb is kept switched ON for four hours. The units of electrical energy consumed
(A) 0.4 unit
(B) 4 unit
(C) 25 unit
(D) 400 unit
Correct Answer - Option
(A)
No Explanation found. Add Explanation and get +2 points.
-1750) ______ is a small picture on screen that depicts program, file or folder.
(A) Chip
(B) Virus
(C) Icon
(D) Memory
Correct Answer - Option
(C)
No Explanation found. Add Explanation and get +2 points.
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