ENGINEERING CAREER AND STUDY MATERIALS

MECHANICAL ENGINEERING EXAM QUESTIONS Question # 1. If the mechanical properties of a composite improves as a result of increasing the average fibre length, then it is called (1) Long fibre (2) Short fibre (3) Medium length fibre (4) Elastic fibre Question # 2. A refrigerator working on a reversed Carnot cycle removes 2 kW per minute of heat from a system working between the temperatures of 300 K and 200 K. The COP and power consumed by the cycle will be (1) 1, 1 kW (2) 1, 2 kW (3) 2, 1 kW (4) 2, 2 kW Question # 3. 18-4-1 HSS steel contains (1) 18% tin, 4% nickel, 1% chromium (2) 18% tungsten, 4% nickel, 2% chromium (3) 18% tungsten, 4% chromium, 1% vanadium (4) 18% nickel, 4% chromium, 1% manganese Question # 4. The dryness fraction of sample steam in separating calorimeter is 0·9 and in throttling calorimeter is 0·8. The dryness fraction of the sample is (1) 0·9 (2) 0·8 (3) 0·66 (4) 0·72 Mechanical Engineering Solved Question Paper-100 Questions- Clic...

* A 1.5mm displacement of tool point in boring operation will result in a change in the diameter equal to? A) 1.65 mm B) 2.5 mm C) 4 mm D) 3 mm Answer: D) 3 mm * The temperature to which a work piece is heated depends on the material and the type of forging process, the temperature range for forging low carbon steel is? A) 700 - 900 Degree Celsius B) 800 - 1300 Degree Celsius C) 450 - 820 Degree Celsius D) 450 - 600 Degree Celsius Answer: B) 800 - 1300 Degree Celsius * Which taper is used on spindle nose of the lathe head stock? A) Morse taper B) Brown and sharp taper C) Thermo Taper D) Yellow Taper Answer: A) Morse taper