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Free trb questions Online Test - MeritNotes

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No. of Questions :10

Remaining Time :

1. To hear a clear echo, the minimum distance should be

(a)
165 feet
(b)
165 meter
(c)
16.5 feet
(d)
16.5 meter

2. 1 horse power is equal to

(a)
722 watts
(b)
738 watts
(c)
746 watts
(d)
756 watts

3. As compared to boiling , evaporation is a _____

(a)
Rapid and calm process
(b)
Rapid and noisy process
(c)
Slow and noisy process
(d)
Slow and calm process

4. Pyrometer is used to measure

(a)
Air pressure
(b)
High temperature
(c)
Intensity of earthquake
(d)
Humidity

5. A dynamo which is said to generate electricity actually acts as a

(a)
Source of electrons
(b)
Source of electric charge
(c)
Source of ions
(d)
Converter of energy

6. Which of the following instruments measures blood pressure?

(a)
Sphygmomanometer
(b)
Ammeter
(c)
Stethoscope
(d)
Spherometer

7. The charge of an electron (in Coulombs) is

(a)
1.206 x 10^-19 kg
(b)
1.602 x 10¹⁹ kg
(c)
1.062 x 10^-19 kg
(d)
1.602 x 10^-19 kg

8. A ray of light travelling in air falls obliquely on the surface of a calm pond. It will

(a)
Turn back on its original path
(b)
Go into the water without deviating from its path
(c)
Deviate away from the normal
(d)
Deviate towards the normal

9. Optical fibre works on the principle of

(a)
Total internal reflection
(b)
Refraction
(c)
Scattering
(d)
Interference

10. When viewed in white light, soap bubbles show colours because of

(a)
Dispersion
(b)
Diffraction
(c)
Interference
(d)
Scattering

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