RRB Junior Engineer (JE) Sample Paper: General Science-1

1. For which Diode is used ?

(a) modulation
(b) oscillation
(c) amplification
(d) purification

2. Who among the following developed the technology of underground nuclear explosion ?

(a) Dr. Horn J. Bhabha
(b) Dr. Vikram Sarabhai
(c) Dr. Raja Ramanna
(d) Dr. P. K. Iyengar

3. Which among the following types of coal produces most heat per unit?

(a) Coal
(b) Lignite
(c) Anthracite
(d) Pit

4. Which among the following waves is used for communication by artificial satellites ?

(a) Microwaves
(b) Radio waves
(c) A. M.
(d) Frequency of 101 series

5. What is found in frequency modulation?

(a) Fixed frequency
(b) Fixed dimension
(c) Change In frequency and dimension
(d) Change in dimension only

CLICK HERE FOR ANSWERS

(E-Book) RRB J.E. Junior Engineer Exam Previous Year Solved Papers

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

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