Q.145Ans 1.2.3.4.Correct Ans Provided: 1

Q.148Ans 1.2.3.4.Correct Ans Provided: 4

Q.146Ans 1.2.3.4.Correct Ans Provided: 1

Q.149 What is the most important gas produced during combustion in an automobile engine that increases the atmospheric temperature?Ans 1. SO22. N23. CO24. O2Correct Ans Provided: 3

Q.143Ans 1.2.3.4.Correct Ans Provided: 1

Q.144 How can the critical whirling speed of a shaft be increased?Ans 1. Increasing its weight2. Reducing its length3. Reducing its diameter4. Increasing its diameterCorrect Ans Provided: 4

Q.147 What is that principle which is similar to the principle of ‘differential’?Ans 1. Pressure cooker2. Weighing beam3. Spring balance4. ThermometerCorrect Ans Provided: 2

Q.150Ans 1.2.3.4.Correct Ans Provided: 1

Q.141Ans 1.2.3.4.Correct Ans Provided: 2

Q.134Ans 1.2.3.4.Correct Ans Provided: 1