Hover or tap underlined Spanish terms to see their translation and exam tip.
En relación al Tiempo Universal, indique la afirmación FALSA:With respect to Universal Time (UT), identify the FALSE statement:
Show the answer
Correct answer: b) It is strictly uniform.
Why it is correct
Universal Time (UT) is tied to the actual rotation of the Earth on its axis. Because Earth’s rotation rate has slight irregularities and tidal slowing, UT is not strictly uniform (which is why leap seconds are needed to keep UTC aligned with UT1).
Why the others are not
- a) True: UT is defined by the Earth’s rotation.
- c) True: in navigation it is equivalent to Greenwich Mean Time (GMT).
- d) True: it is determined from apparent diurnal motions caused by Earth’s rotation.
How to work it out in the exam
- Universal Time (UT): depends on Earth’s rotation and is therefore NOT strictly uniform.
Where this question comes from
- Ministerio de Transportes (Madrid) · 2019 · Convocatoria de junio · CY Test 1 · question 6 Official paper · Official answer key
- Ministerio de Transportes (Madrid) · 2019 · Convocatoria de junio · CY Test 2 · question 2 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.