What device helps keep a chronometer horizontal even when tipped?

• cymbal

• gimbal

• leveler

• reckonal

What type of clock is used in the military?

• 24 hour

• 1200 hour

• 12 hour

• None of the above

In the time-arc relationship, what time is represented by 15° 45’ 45”?

• 15 hours, 3 minutes, 3 seconds

• 1 hours, 45 minutes, 45 seconds

• 1 hours, 3 minutes, 3 seconds

• 15 hours, 45 minutes, 45 seconds

Time based on the relationship of the mean Sun to the prime meridian; also called Zulu time

• Daylight Savings Time (DST)

• Mountain Standard Time (MST)

• Solar Time (ST)

• Greenwich Mean Time (GMT)

Time based on the position of the Sun from your position

• Zone time

• Daylight savings time

• Local apparent time

• Mean Solar time

What is the local apparent time if the sun is directly over the meridian 180° from yours?

• 2400

• 1200

• 1800

• 0600

Why does the length of a solar day vary according to the position of the Earth in its orbit?

• The Earth orbits at different speeds throughout its revolution.

• The Earth rotates at different speeds.

• The Earth’s axis is tilted.

• All of the above

If it is 0200U in San Diego, what is the GMT?

• 1000Z

• 1500Z

• 1800Z

• 1400Z

An international time scale based on the frequency of vibrations of the radioactive cesium atom

• Local mean time

• Universal coordinated time (UTC)

• Daylight savings time

• None of the above

The difference between the time in a zone and GMT

• Zone description (ZD)

• Zone divergence (ZD)

• Zone distinction (ZD)

• None of the above