Q.56Ans 1.2.3.4.Correct Ans: 4

Q.73Ans 1.2.3.4.Correct Ans: 1

Q.54Ans 1. 242. 123. Zero4. 18Correct Ans: 4

Q.74 A solid cylinder of diameter 5 m has a height of 5 m and is floating in water with its axis vertical. Specific gravity of cylinder material is 0.8. Which of the following statements is TRUE about ...

Q.68 “A property of material having tendency to fracture without appreciable deformation” is known as:Ans 1. Fatigue2. Brittleness3. Ductility4. HardnessCorrect Ans: 2

Q.64 Which of the following substance has highest thermal diffusivity at room temperature?Ans 1. Silver2. Water3. Mercury4. GlassCorrect Ans: 1

Q.76 A mass of flywheel of a steam engine is 3000 kg and has a radius of gyration of 100 cm. The starting torque of steam engine is 1000 N-m and may be assumed constant. What will be ...

Q.59 A 1.57 kW resistance heater wire, whose thermal conductivity k = 10 W/m-K, has diameter of 5 mm and length 0.5 m and is used to boil water. If the outer surface temperature of the resistance wire ...

Q.55 On an average, 20 persons are coming at a shop per hour, and on an average the shopkeeper can handle 25 persons per hour. What will be the proportion of time shopkeeper is idle?Ans 1. 0.22. 0.13. ...

Q.48 Height of Watt governor is:Ans 1. inversely proportional to the cube of the speed of the governor2. inversely proportional to the square of the speed of the governor3. directly proportional to the square of the speed of ...