RRB Junior Engineer (JE) Sample Paper: General Science-20

1. A fountain pen Works on the principle of

(a) flow of liquids from higher to lower potential
(b) capillary action
(c) Bernoullis principle
(d) Viscosity of liquids

2. Pycnometer is an instrument used to measure the

(a) density
(b) intensity of solar radiation
(c) intensity of earthquake
(d) high temperatures

3. Fibre optics work on the principle of

(a) scattering of light
(b) total internal absorption
(c) total internal reflection
(d) optical rotation

4. A decibel is

(a) a musical instrument
(b) the wavelength of noise
(c) a musical note
(d) a measure of sound level

5. Remote sensing device has an Inbuilt source of

(a) X-ray
(b) gray
(c) ultraviolet ray
(d) infrared ray

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Study Kit for RRB Junior Engineer EXAM (Phase-1) 

1(b), 2(a), 3(c), 4(d), 5(d)