Free trb questions Online Test - MeritNotes

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1. The principle employed in sonar is
 
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2. Unit of electrical energy is
 
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3. Wilhelm Rontgen invented
 
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4. The apparatus used to measure the intensity of light is known as
 
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5. A 100 watt bulb is kept switched ON for four hours. The units of electrical energy consumed
 
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6. Who invented air conditioning?
 
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7. The earth’s magnetic field always has a vertical component except at the
 
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8. Which of the following instruments measures blood pressure?
 
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9. ______ was the inventor of cosmic rays.
 
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10. What is the approximate value of escape velocity for the earth?
 
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