Advanced Surveying MCQs

Consider the following statements : 1. The sidereal day begins at the instant of the upper transit of the first point of Aries. 2. When the star is at its transit, the sidereal time is equal to the star's right ascension Of these statements:

Consider the following statements : 1. Local sidereal time (LST) = R. A. of a star + westerly hour angle of the star ; deduct 24 hours if the sum is greater than 24 hours and add 24 hours if the sum is negative. 2. When the star is at its upper transit, the sidereal time equals its right ascension 3. Sidereal time at any instant is equal to the hour angle of the First point of Libra 4. The time interval between two successive lower transits of the vernal equinox over the same meridian is called a sidereal day. Of these statements:

Consider the following statements regarding solar time 1. Apparent solar time is reckoned with respect to the daily motion of the sun 2. The time interval between two successive upper transits of the centre of the sun over the same meridian is called the apparent solar day 3. The apparent solar time is given by the sun dial 4. The apparent solar day is divided into 24 hours. Of these statements:

Consider the following statements : Assertion A: The apparent solar day is not of uniform length Reason R: Sun does not move at uniform rate along the ecliptic

Consider the following statements regarding the mean solar time 1. The mean sun, an imaginary sun is assumed to move at a uniform rate along the equator to make a solar day 2. The mean sun and true sun are supposed to start and return at the same time from/to the vernal equinox 3. The mean solar day is the average of all the apparent solar days of the year 4. The time interval between two successive upper transits of the mean sun over the same meridian is called a mean solar day or civil day Of these statements:

Consider the following statements : 1. The difference between apparent solar time and mean solar time at any instant is known the equation of time 2. Equation of time = R. A. of the mean sun + R. A. of the sun 3. The apparent time and mean time are same on April 15, June 14, September 1 and December 25. 4. The equation of time vanishes five times during the year. Of these statements :

Consider the following statements : Assertion A: The equation of time equals the mean time of apparent noon Reason R : When the real sun is on the meridian the apparent time is zero Of these statements:

Consider the following statements : The difference in local time between two places is equal to the difference in their longitudes. 5. The sidereal time is measured from 0 h to 24 h from the upper transit of the First point of Aries. 6. The mean solar time is measured from the lower transit of the mean sun+ 7. Greenwich time of local midnight is equal to longitude of the place in time. Of these statements :

Consider the following statements :1. The standard meridian of a country is selected at an exact number of hours from Greenwich.2. The standard meridian of India is 820E3. Greenwich meridian is the standard meridian of Great Britain4. The difference of longitudes between the given place and standard meridian is equal to the difference in local times.Of these statements: