Results
Q1. Weakening the mixture below the best fuel/air ratio will cause the engine power to:
Correct answer is – decrease
Q2. For maximum endurance the mixture control should be set to:
Correct answer is – weak
Q3. An air/fuel ratio of 9:1 would be considered:
Correct answer is – rich
Q4. Because of the reduction in the density of the atmosphere associated with an increase in altitude:
Correct answer is – the mixture control must be moved towards the weak position
Q5. A chemically correct mixture is:
Correct answer is – 15:1 (air: fuel)
Q6. While weakening the mixture from the chemically correct mixture the EGT will …………… and the cylinder head temperature will …………… with a …………… in thermal efficiency.
Correct answer is – decrease, increase, decrease
Q7. Which of the following mixtures theoretically would produce the maximum rpm?
Correct answer is – 15:1 (air: fuel)
Q8. A weak mixture is used for which of the following?
Correct answer is – Cruising
Q9. While using a weak mixture which of the following would be an incorrect statement?
Correct answer is – The ignition may have to be retarded
Q10. While using a rich mixture which of the following would be a correct statement?
Correct answer is – All of the oxygen would be used during combustion
