Question

please note: leaving this page before submitting your assessment will result in failing this attempt. if you exceed the number of allowed attempts, you will be locked out of your course and required to re-register. 1) when driving at high altitudes, the grades of octane for gasoline are reduced compared to the grades of octane available from gasoline retailers located at sea level. a) true b) false 2) remember to cross railroad tracks only when: a) signs and signals have just stopped flashing b) it is safe c) it is safe and permitted by signs and signals at the intersection d) the intersection has no train coming

Explanation:

Question 1

At high altitudes, air pressure is lower. Gasoline's octane requirements change, and the octane grades available at high altitudes are often reduced compared to sea - level retailers. So the statement is True.

To cross railroad tracks, it must be both safe (no train is coming and the way is clear) and permitted by the signs and signals at the intersection (e.g., the crossing signal is not indicating a train is approaching). Option a is wrong as just because signals stopped flashing doesn't mean it's safe. Option b is too vague as it doesn't consider the signals. Option d is also incomplete as it doesn't consider the signals. Only option c covers both safety and the permission from signs/signals.

Answer:

a) True

Question 2