Reasoning Mock Test | RRB NTPC

Q1. Asha's father's sister is the mother of Bimal. How is Bimal related to Asha?

Brother Uncle Cousin Nephew

Q2. A triangle has angles 30°, 60°, and 90°. If the hypotenuse is 10 cm, and a square is constructed with its side equal to the shorter leg, what is the area of the square?

25 sq cm 50 sq cm 75 sq cm 100 sq cm

Q3. A, B, C, D, and E are brothers and sisters. A is the brother of B. C is the sister of D. D is the brother of B. How is A related to D?

Brother Uncle Cousin Nephew

Q4. A person is studying diligently with textbooks and notes. What can you infer?

They are going to sleep. They are preparing for an exam. They are watching a movie. They are going on vacation.

Q5. Meena's brother's wife is Sunita. How is Sunita related to Meena?

Sister-in-law Cousin Aunt Mother

Q6. Consider a 5x5 grid where each cell is filled with a digit from 0 to 9, such that no adjacent cells (horizontally or vertically) have the same digit. If the number of cells containing '0' is 4, and the number of cells containing '5' is 5, what is the maximum possible number of cells containing '1'?

7 8 9 10

Q7. Identify the missing number: 1, 3, 5, 7, ?

8 9 10 11

Q8. What is a 'variable' in programming?

A set of instructions A placeholder for data A control flow statement A type of error

Q9. Consider a scenario where an automated freight train dispatch system utilizes predictive maintenance rules based on sensor data. If a rule flags a potential gearbox failure with a 95% probability based on vibration analysis and lubricant viscosity, but the system is currently operating at nominal capacity, what is the most appropriate action according to advanced rule management protocols?

Immediately halt all operations and initiate a full manual inspection. Log the event and schedule a preemptive maintenance check during the next scheduled downtime. Ignore the rule as the system is not at critical load. Override the rule with a lower confidence threshold for immediate action.

Q10. All vehicles require fuel. Bicycles do not require fuel. Therefore, bicycles are not vehicles. This is:

Valid argument Invalid argument Deductive error Inductive conclusion

Q11. Eight people P, Q, R, S, T, U, V, and W are seated in a row. P is to the immediate right of Q. R is to the immediate left of S. T is between U and V. W is at one of the ends. There are exactly three people between P and T. U is to the immediate left of P. Who is at the extreme left?

R S T U

Q12. No elephants are small. Some small things are fast. What can be concluded?

No elephants are fast. All elephants are fast. Some elephants are fast. Some fast things are not elephants.

Q13. If 'A' becomes 'C', 'E' becomes 'G', 'I' becomes 'K', 'O' becomes 'M', 'U' becomes 'S'. What will 'ORANGE' become?

ORBMGE ORKMGE ORMNGE ORKNGE

Q14. When a problem requires storing and retrieving data efficiently based on a key, what data structure might be suitable?

Linked List Stack Queue Hash Map

Q15. If we observe a phenomenon 'Q' and have a rule 'If P then Q', abduction suggests that 'P' might be the cause. This is an example of:

Modus Ponens Modus Tollens Affirming the Consequent Denying the Antecedent

Q16. Which of these is the obverse of 'Some engineers are not creative'?

Some engineers are creative No engineers are creative All engineers are creative Some engineers are not not creative

Q17. Identify the fallacy in the following argument: 'If I study hard, I will pass the exam. I passed the exam. Therefore, I studied hard.'

Affirming the Consequent Denying the Antecedent Undistributed Middle Equivocation

Q18. Consider: Some apples are red. All red fruits are tasty. Therefore, all apples are tasty. This syllogism is:

Valid Invalid due to illicit major Invalid due to undistributed middle Invalid due to illicit minor

Q19. Amit's father is the only son of Bharat's grandfather. How is Amit related to Bharat's paternal uncle?

Son Nephew Cousin Brother

Q20. My mother's sister's daughter is my:

Sister Cousin Aunt Niece

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