If you were to drill a circular hole in a sheet of metal and then heat the sheet, what would happen to the size of the hole?

1185

---

Show the forces acting on a ladder

1191

---

Why do large ships like aircraft carriers not sink despite weighing several thousand tonnes?

1106

---

What would be the difficulties with building a bridge that connects the UK and Canada?

1267

---

What are the main differences between the engines in jet fighters and the engines in jet airliners; which type of engine is the more efficient, and (qualitatively) why?

1275

---

What would be your first invention?

1233

---

Derive the equation that links voltage, charge and capacitance.

1221

---

How small can you make a computer? What are the limiting factors?

1454

---

Convert 1024 (in decimal) to octa and hexadecimal form

1243

---

What is the difference between 8087 and 8086

1167

---

Which was intel's first microprocessor

1178

---

Number of nodes in Binary tree with height 3:

1152

---

What is the ideal op-amp CMRR ?

1119

---

Which is the fastest logic ?

1096

---

Is the data bus is Bi-directional?

1200

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