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?

1135

---

Show the forces acting on a ladder

1131

---

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

1033

---

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

1213

---

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?

1227

---

What would be your first invention?

1170

---

Derive the equation that links voltage, charge and capacitance.

1156

---

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

1394

---

Convert 1024 (in decimal) to octa and hexadecimal form

1189

---

What is the difference between 8087 and 8086

1115

---

Which was intel's first microprocessor

1128

---

Number of nodes in Binary tree with height 3:

1105

---

What is the ideal op-amp CMRR ?

1051

---

Which is the fastest logic ?

1049

---

Is the data bus is Bi-directional?

1156

---