16
General awareness and Aptitude test
LOGICAL VENN DIAGRAMS
This Section deals with questions which aim
at analyzing a candidate’s ability to relate a
certain given group of items and illustrate it
diagrammatically. In these tests a relationship is
to be established between two or more items
represented by diagrams. The items represented
by the diagrams may be individual, a particular
group/class of people etc.
Example:
You are required to choose from the five
diagrams the one that best illustrates the
relationship among the three given classes in the
questions that follow.
A
B
C
D
E
Questions
1.
Criminals, Pickpocketers, Terrorists
2.
Dogs, Friendly Animals, Cats
3.
Food, Curd, Spoons
Answers
1.
E
2.
D
3.
C
Explanation:
1.
Both Pickpocketers and Terrosist fall under
the class of criminals. There is a possibility
that some of pickpocketers can be terrorists
and some of terrorists can be pickpocketers
2.
Both dogs and cats can be wild as well as
friendly animals, so we can infer that although
both fall under separate classes some cats
and some dogs may be friendly
3.
Curd is covered under the class Food.
However spoon is a separate class and has
no relation with them.
Hints for Answering Questions:
To tackle questions on logical diagrams
following hints will be helpful
1.
These tests are based on the concept of class.
A class is a group of items, all having
something in common. Hence a class of
MAMMALS will be all those members of
animal kingdom who are MAMMALS and
REPTILES will be not included in this class.
2.
Classes can contain classes. A class may
contain or be contained with another.
Example: FATHERS will be contained in the
larger group of MALES. But not all MALES
will be FATHERS.
3.
One class may be partially contained in
another
Example:
HUSBANDS and BROTHERS. All
BROTHERS are not HUSBANDS and all
HUSBANDS are not BROTHERS. The Partial
relationship is as depicted in figure.
So a relationship can be of three basic types
1.
Complete Exclusion
2.
Complete Inclusion
3.
Partial Inclusion