Time Systems MCQ

Test your knowledge with important Time Systems MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Time Systems MCQs at Bissoy

Which of the following statement is incorrect about Julian day?

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The Julian day count is uniform and continuous and does not involve leap years or different numbers of days in different months

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The number of days between two events is found by simply subtracting the Julian day of one from that of the other

গ
The Julian day begins at noon rather than at midnight so that astronomers observing the heavens at night would not have to deal with a change of date during their watch

ঘ
Julian day is more useful for people resident on the Earth
Julian day number is the number of days since _____

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December 1, 4713 BC

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January 1, 2000

গ
January 1, 4713 BC

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December 1, 1900
The system measured by the sun’s passage across the Greenwich meridian is called _____

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Universal time

খ
Apparent Solar time

গ
Sidereal time

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Julian day
Which is not a time system?

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Julian Day

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Atomic time

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Universal time

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Polar time
Local sidereal time of a site is the time elapsed since the local meridian of the site passed through the vernal equinox.

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True

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False
What is the reference for the Sidereal time?

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The Sun

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The centre of the Celestial sphere

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The Moon

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The Stars
A solar day comprises of ______

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12 hours

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24 hours

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23 hours 56 mins

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24 hours 4 mins
Which of the following is a correct statement about time?

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Time is not a fundamental dimension in science

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Time can be calculated by the same method throughout the universe

গ
The main purpose of time is to define with precession, the exact moment of a phenomenon

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The epoch designates a particular instant described as a day
What is the time between two successive upper transits of the sun across a local meridian called?

ক
Apparent solar day

খ
Solar day

গ
Sidereal time

ঘ
Universal time