Important Paper ESE Mechanical Engineering

Q1. Which one of the following is the major alloying element in Invar?

1. Aluminum
2. Nickel
3. Vanadium
4. Copper

Q2. Liquid + solid (1) on cooling converting into solid (2) reaction is known as:

1. Eutectoid reaction
2. Eutectic reaction
3. Peritectic reaction
4. Peritectoid reaction

Q3. Structure of common glass is:

1. Amorphous
2. Partially crystalline
3. Fully crystalline
4. None of these

Q4. Injection moulding process used to produce thermoplastic matrix composites with fibre reinforcement normally gives:

1. Short fibre composites
2. Two layer structure composites
3. Continuous fibre composites
4. Single layer composites

Q5. ‘Whiskers’ are:

1. Very thin metallic particles
2. Very thin single crystals
3. Very thin poly crystals
4. Fiber particles of aspect ratio less than 10

Q6. Kevlar Epoxy composite is widely used in:

1. Automobiles
2. Aerospace
3. Navy
4. Interior decoration

Q7. Lead is widely used in:

1. Transformers
2. Switch gear
3. Galvanized pipes
4. Batteries

Q8. Solid material chemical bonds are:

1. Ionic, molecular and fusion
2. Covalent, fusion and fission
3. Ionic, covalent and molecular
4. Fission, molecular and ionic

Q9. Cleavage fracture is a form of:

1. Brittle fracture
2. Ductile fracture
3. Elastic fracture
4. Viscoelastic fracture

Q10. Admiralty brass is used for:

1. Condenser tubes
2. Rivets
3. Piston rods
4. Utensils