1.3.1 Section A

Question 1

A1.1 What is torque?

Answer 1

The twisting (pull) force or ‘turning effort.

It is measured at the end of the crankshaft in Newton metres (Nm).

The better torque rating, the better the pulling power for a load.

Question 2

A1.2 What unit is used to measure torque?

Answer 2

Newton metres (Nm)

Question 3

A1.3 What happens if you accelerate beyond the maximum recommended rpm?

Question 4

A1.4 What does a typical manufacturers performance curve for an engine show?

Question 5

A1.5 What is horse power?

Question 6

A1.6 What unit is used to measure engine power?

Question 7

A1.7 Modern diesel engines have high torque output at what rev range?

Question 8

A1.8 Name 3 benefits of keeping engine speed / revs in the green optimum range of the tachometer rev counter.

Question 9

A1.9 What are the benefits of a Top Torque engine?

Question 10

A1.10 What is the typical difference in horse power output between the larger and smaller engines?