PULEET 2022 Sample Questions

SAMPLE QUESTIONS FOR PULEET - 2022 1. The efficiency of a Carnot engine is dependent on: (a) Specific heat of gas used (b) Temperatures of source & sink (c) Rapidity of compression and expansion of gas used (d) All of the above 2. The ball of 100 g is in uniform circular motion of radius 4m and has a constant speed of 2 m/s. The centrifugal force acting on it will be (a) 100 N (b) 0.1 N (c) 10 N (d) None of these ο ο ο ο 3. The value of sin 10 + sin 20 +sin 30 +…+ sin 360 is (a) 1 (b) 0 (c) -1 (d) None of these 4. The system of linear equations AX=b where A is m × n matrix of coefficients, X is n × 1 vector of unknowns, b is m × 1 vector of unknowns is consistent if (a) rank A = rank (A|b) (b) rank A ≠ rank (A|b) (c) rank A = 0 (d) rank A = n+m 1 5. If one root of a quadratic equation with real coefficients is , then the other root is 3 + 4i (a) 3-4i 3 4 (b) + i 25 25 3 4 (c) − i 25 25 4 3 (d) − i 25 25 6. Pitot tube is used to measure (a) Discharge (b) Velocity (c) Temperature (d) None of these 7. During Throttling ______________ remains constant (a) Heat (b) Temperature (c) Enthalpy (d) Internal Energy 8. In a differential amplifier, CMRR can be improved by increasing (a) Emitter Resistance (b) Collector Resistance (c) Power Supply Voltage (d) Source Resistance 9. If an amplifier with a gain of -1000 had a gain change of 20% due to temperature. It was provided the feedback with feedback factor β = -0.1, now the change in gain with feedback will be (a) 10% 73

(b) 5% (c) 0.2% (d) 0.01% 10. 8085 microprocessor can address memory space of (a) 256 B (b) 128 KB (c) 64 Kb (d) 1 MB 11. Default ace types of member variable in classes is (a) private (b) public (c) protected (d) static 12. Which of the following operator has the highest precedence (a) + (b) / (c) * (d) ++ 13. Which of the following statement is invalid (a) x=y+++z; (b) x+=y; (c) ++x++; (d) a+b=c+d; 14. A series RLC circuit offer the impedance value at resonace that is (a) maximum (b) minimum (c) infinite (d) none of these 15. In Star connection for balanced load, the current flowing in neutral wire is (a) minimum (b) maximum (c) zero (d) none of above 16. In an SCR, the break over voltage VBO (a) increases with increase of positive gate current (b) is independent of gate current (c) decreases with increase of positive gate current (d) none of above 74