Given are 4 questions, each with four nouns. Three of these nouns will be related to each other in some way. You have to pick the odd option in each of the question.
a) Gaur b) blackbuck c) Sambar d) Swallow
Answer : d) Swallow
First three options namely Gaur, Blackbuck and Sambar refer to animals while Swallow is a bird. Hence d is the answer.
a) Sahara b) Thar c) Thal d) Oslo
Answer : d)Oslo
Sahara, Thar and Thal are names of deserts while Oslo is the capital city of Norway.
a) ballot b) vote c) suffrage d) disenfranchisement
Answer : d) disenfranchisement
Ballot refers to device used for voting. Suffrage refers to the right to vote. Therefore options a,b and c are related. Disenfranchisement refers to deprive someone of their right to vote. Therefore option d is the answer.
a)Ballast b) Sleepers c)Rail d) Road
Answer : d) Road
Ballast, Sleepers are specific components/parts of railway track. Therefore options a,b and c are related to each other. Road, on the other hand is a generic term. It does not only imply railway track but can also refer to motorable roads. Therefore, option d is the answer.