EASY
RRB JE CBT 1
IMPORTANT
Earn 100

The number of free electrons in the outermost shell of carbon atoms in diamond is :

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Important Questions on Practice Set

MEDIUM
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 49
13 years ago Ram was twice as old as Sunny, Three years from now Sunny's age will be three-fifth of Ram's age. What is Ram's current age?
EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 50
If the power of a corrective lens is +2.0 D, then it is a:
MEDIUM
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 51

Consider the argument and decide which of the given options is/are implicit. 

Argument: 
Alexander the Great was mortal. 

Assumption: 
1. Alexander the Great was human. 

2. Alexander the Great is a Greek.

EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 52
This pass is in the Zaskar range of Jammu and Kashmir. The road route from Srinagar to Leh goes through this pass. It has been created by the Indus River. Identify the pass :
 
MEDIUM
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 53
A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2.5 m. During the collision, the percent loss in the kinetic energy is :
EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 55

Select the figure that does NOT belong in the following group.

Question Image

EASY
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 56
Which among the following dedicated the Chenani-Nashri Tunnel, the longest road tunnel in India, to the nation in April 2017?
MEDIUM
RRB JE CBT 1
IMPORTANT
Railway Recruitment Board Junior Engineer (Stage I CBT)>Chapter 1 - Practice Set>PRACTICE SET-20>Q 58
X walks 3 km  towards west, and then turns and travels 4 km  towards north. The shortest distance between the start and the endpoint of X's journey is _____.