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Worksheets801 TM
Total questions: 43
Worksheet time: 35mins
1. What does the word KNOT mean?
1 Degree of latitude scale
One mile per hour
15 degree of longitude
One nautical mile per hour
The length of the line drawn between any two places is?
Distance
Latitude
Departure
Meridian
A great circle on the surface of the earth midway between the two poles is called?
elevated pole
hour circle
meridian
equator
It is approximately an oblate spheroid flattened at the poles
Mercury
Earth
Mars
Planet
Which of the following year has a duration of 365 days?
Sidereal year
Anomalistic year
Common year
Leap year
Which of the following year has a duration of 365days, 5hours,48 minutes,46 seconds?
Sidereal year
Tropical year
Common year
Leap year
What year divisible by four, with a period of 366 days?
Sidereal year
Tropical year
Common year
Leap year
This is any circle on the surface of a sphere which is not a great circle?
Small circle
Secondary great circle
Great circle
Big circle
What do you called the Another great circle is said to be secondary to that circle, which is then referred to as its primary?
Small circle
Secondary great circle
Great circle
Big circle
Which of the following year has a duration of 365days, 6 hours, 9 minutes,10 seconds?
Sidereal year
Tropical year
Common year
Leap year
Which of the following year has a duration of 365days, 6 hours, 13minutes, 53seconds?
Anomalistic year
Tropical year
Common year
Leap year
What do you called the origin of longitude or the original position of the British Royal Observatory at Greenwich?
Prime Meridian
Meridian
Equator
Earth
It is a terrestrial great circle whose plane is perpendicular to the polar axis.
Equator
Meridian
Prime Meridian
Latitude
What do you called angular distance from the equator, measured northward or southward along a meridian from 0˚ at the equator to 90˚ at the poles. It is designated north (N) or south (S) to indicate the direction of measurement?
Longitude
Latitude
Difference of Latitude
Difference ofLongitude
What do you called thearc of a parallel or the angle at the pole between the prime meridian and the meridian of a point on the earth, measured eastward, or westward from the prime meridian through 180˚. It is designated east (E) or west (W) to indicate the direction of measurement.?
Longitude
Latitude
Difference of Latitude
Difference of Longitude
If the two positions have latitudes of the same name the Difference of Latitude will be?
Sum between Latitude
Difference between the two Latitude
Multiply by 60 Minutes
Difference between the two Longitude
These aids and provides other information of interest to navigators such as depths, contours, topographic features and etc.
Nautical chart
Maps
Globe
Plotting map
What is the most essential and reliable aids to navigator in avoiding dangers and arriving safely at the designation?
Nautical chart
Maps
Globe
Plotting map
What is the smallest scale charts used for planning, fixing position at sea and for plotting the dead reckoning while proceeding on a long voyage.
Sailing Chart
Harbor chart
General chart
Coast chart
What is the scale of sailing Chart?
≥ 1:600,000
≤ 1:600,000
≥ 1:150,000
≤1:150,000
Which of the following does not belong to the group?
Pilot chart
Harbor chart
General chart
Coast chart
What is the chart used for coastwise navigation?
Pilot chart
Harbor chart
General chart
Coast chart
What is the chart used for inshore coastwise navigation?
Pilot chart
Harbor chart
General chart
Coast chart
What is the scale of General Chart?
1:150,000 to 1:600,000
1:150,000 to 1:160,000
1:15,000 to 1:600,000
1:15,000 to 1:60,000
What is the scale of Coast Chart?
1:150,000 to 1:600,000
1:150,000 to 1:160,000
1:50,000 to 1:150,000
:15,000 to 1:60,000
What is the scale of Harbor Chart?
a. ≥ 1:600,000
a. ≤ 1:600,000
a. ≥ 1:50,000
a. ≤ 1:50,000
What is the chart used for navigation and anchorage in harbors and small waterways?
Harbor chart
Pilot chart
General chart
Coast chart
What chart represents in graphic form, averages obtained from data gathered over many years in meteorology and oceanography to aid the navigator in selecting the quickest and safest routes?
Pilot chart
Harbor chart
General chart
Coast chart
This chart is used in tidal current data are depicted graphically.
Pilot chart
Harbor chart
Synoptic Chart
Tidal Current charts
An instrument designed for the measurement of direction is called?
Compass
Global Positioning System
Echo Sounder
ARPA
A Vessel M/Tkr Bulusan Observes Origon Rock in Romblon Romblon to Bear 340˚T. She wishes to arrive off Gorda Point Romblon with a distance of 48.5 N. Miles in 5 Hours. Find the Speed of the vessel?
9.7 knots
7.9 knots
242.5 Knot
340 miles
It is a circle on the surface of the earth, parallel to the plane of the equator. It connects all points of equal latitude.
Difference of Latitude
Difference of Longitude
Parallel of Latitude
Parallel of equator
The semi great circle on the surface of the earth extending from pole to pole is called?
Celestial Latitude
Circumpolar Line
Meridian
Equator
It is the smaller arc of the equator intercepted between the meridians of two places
Difference of Longitude
Difference of Latitude
Difference of meridian
Difference of equator
Measurement along the equator from the prime meridian to either E or W to the meridian of the place with the extreme measurement from 0˚to 180˚ is?
Declination
Longitude
Latitude
Azimuth
M/Tkr Animo depart at 0500H 15 November 2019 heading to Mandaue Cebu from Subic Zambales with the total distance of 80 N.Miles. How many hours will be the steaming time in average 5.0 knots?
18 Hours
16 hours
10 Hours
15 hours
M/Tkr Roosevelt steaming time from Tacloban Leyte to Romblon is 14 Hours with an average speed of 5.7knots. What will be the distance travelled from Leyte to Romblon?
79.8 N.Miles
2.45 N.Miles
97.8 N.Miles
87.9 N.Miles
MV Tip Manila depart at Navotas Port at 1100H November 15,2019 going to Subic Zambales. She Arrived around 2000H with the same date. What will be the speed? If the total distance of 85.0 N.Miles?
9.44 N.Miles per Hour
4.9 N.Miles per Hour
99.4 N.Miles per Hour
4.49 N.Miles per Hour
One day would be equal to:
31 Days
24 Hours
60 Minutes
60 seconds
One hour of longitude is equal to how many Degree/s?
15 degree/s
4 degree/s
1 degree/s
12 degree/s
What is the termed used in latitude and longitude or define any position on earth?
Coordinates
Meridian
Latitude
Longitude
It is a rate of motion, or distance per unit of time?
Distance
Bearing
Course
Heading
It is the unit of speed commonly used in navigation is a rate of 1 nautical mile per hour?
Knot
Nautical Mile
Meter per hour
Kilometer per hour
