19500+ Important MCQs for NAVY
19500+ MCQs for NAVY are available here. You can learn these questions for your better preparation. Questions are available with its correct answer. You can check the correct answer of any questions by clicking the option or show answer button.
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Q. The density of water is 1 g/cc. This is strictly valid at
✅ Correct Answer: (B)
4°C
Q. Specific gravity is defined as the ratio of
✅ Correct Answer: (A)
Density of the substance to the density of water
Q. The cause for the Tsunami, as deduced by the seismologists, is
✅ Correct Answer: (C)
Deformation of sea floor and vertical displacement of water
Explanation: Seismologists say only earthquakes measuring greater than 7.0 on the Richter scale can produce a major tsunami. The friction between two slow-moving plates of the Earth's crust creates vast amounts of seismic energy which is released in the form of an earthquake.
Q. The instrument for measuring intensity of earthquakes is called
✅ Correct Answer: (D)
Seismograph
Q. Speed of sound is maximum in which among the following?
✅ Correct Answer: (D)
Solids
Q. What is the full form of "RADAR" ?
✅ Correct Answer: (A)
Radio Detecting and Ranging
Q. When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because
✅ Correct Answer: (D)
Light takes curvature at the edges of the hole
Q. An energy source will supply a constant current into the load if its internal resistance is
✅ Correct Answer: (C)
Zero
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