Coding-Decoding MCQs for CET Graduate
Practice 20 free Coding-Decoding questions under Mental Ability — Reasoning & Mental Ability.
Strengthen your Coding-Decoding knowledge for CET Graduate with curated MCQs. Switch between Hindi and English anytime.
CET Graduate — Mental Ability — Coding-Decoding
20 Questions • Instant results & explanations • Hindi & English
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Question 1 of 20
Assertion (A): In word substitution coding, factual real-world knowledge is necessary but not sufficient to answer the question. Reason (R): The final answer must always be derived by passing the real-world fact through the artificial substitution rule provided in the problem.
Question 2 of 20
If a cryptographic rule pairs the letter 'D' exclusively with 'W', and the letter 'C' exclusively with 'X', what overarching logical framework is being utilized?
Question 3 of 20
According to the fundamental principles of reasoning, why is an un-coded message vulnerable?
Question 4 of 20
In a specific coding mechanism, 'TANU' is represented as '20-1-14-21'. Based on this exact logic, how would the word 'MAN' be coded?
Question 5 of 20
Match the letter with its corresponding forward numerical position (List-I to List-II): List-I P. O Q. P R. Q S. R List-II 1. 18 2. 15 3. 17 4. 16
Question 6 of 20
In word substitution, if 'Blue' is coded as 'Black', and 'Black' is coded as 'Green', what is the actual, un-coded color of the sky?
Question 7 of 20
Consider the following statements regarding the prerequisites for a successful encrypted communication: I. The sender must convert meaningful text into an obscure format using a specific predefined rule. II. The receiver must know the exact same predefined rule to accurately retrieve the original information. Which of the statements is/are correct?
Question 8 of 20
Which of the following is NOT a standard method of coding discussed in basic reasoning?
Question 9 of 20
If Z=1, Y=2, X=3, and W=4, what will be the numerical value of the word 'CAB' using this specific logic?
Question 10 of 20
Consider the following statements regarding the shifting of letters (e.g., A -> E): I. It involves replacing a letter with another letter located at a specific forward or backward distance in the alphabet. II. It requires memorizing the word 'Cloud is White'. Which of the statements is correct?
Question 11 of 20
If a coding system utilizes the rule of 'Opposite Letters' (e.g., A corresponds to Z, B corresponds to Y), how will the word 'CAB' be coded?
Question 12 of 20
If a code uses the logic of shifting to the '3rd letter ahead' (e.g., A becomes D), what will the letter 'P' become?
Question 13 of 20
In the reverse alphabetical numerical coding system, what is the numerical value assigned to the letter 'X'?
Question 14 of 20
In a defined word substitution cipher: 'Cloud' translates to 'White', 'White' translates to 'Sky', 'Sky' translates to 'Blue', 'Blue' translates to 'Black', and 'Black' translates to 'Green'. If an individual wants to refer to the color of milk in this coded environment, which word must they use?
Question 15 of 20
In the context of opposite letter coding, which letter represents the opposite pair for 'D'?
Question 16 of 20
Match List-I (Alphabetical ranges) with List-II (Numerical positions) for standard forward coding: List-I P. First three letters Q. Letters E, F, G R. Letters U, V, W S. Last three letters List-II 1. 24, 25, 26 2. 5, 6, 7 3. 1, 2, 3 4. 21, 22, 23
Question 17 of 20
Using a defined word substitution sequence where 'Cloud' is 'White', 'White' is 'Sky', 'Sky' is 'Blue', 'Blue' is 'Black', and 'Black' is 'Green', what is the coded color of the ocean?
Question 18 of 20
Assertion (A): In opposite letter coding, the sum of the standard forward numerical positions of a paired letter combination is always 27. Reason (R): 'C' and 'X' form an opposite letter pair in the English alphabet.
Question 19 of 20
Match List-I (Coding Method) with List-II (Example) correctly: List-I P. Forward Alphabetical Coding Q. Reverse Alphabetical Coding R. Opposite Letter Coding S. Symbol Coding List-II 1. A becomes Z, B becomes Y 2. A=1, B=2, C=3 3. A=$, B=*, R=@ 4. Z=1, Y=2, X=3
Question 20 of 20