| Question | Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter- cluster that is different. | |
| Type | multiple_choice | |
| Option | QUAIL | incorrect |
| Option | PIOUS | incorrect |
| Option | AEONS | incorrect |
| Option | PENAL | correct |
| Solution | Except option (d) all the other words contain 3 vowels in each word. | |
