Quantitative Aptitude ยท Reasoning
Time and Clocks
562 Questions
Time and clocks problems evaluate quantitative aptitude by testing concepts on clock gains, losses, and relative speeds of hands. Questions also cover global time zones and standard time calculations. These logical reasoning topics frequently appear in SSC and banking exams.
Clock gain or lossTime zonesAngle between handsStandard time calculationPrecise time measurement
Time and Clocks Questions
Which watchmaking innovation enables the display of multiple time zones simultaneously?
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Chronograph
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Tachymeter
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GMT Watch
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World Time Display
D
Correct answer
Explanation
A world time display is a watch complication that allows the wearer to view the time in multiple time zones simultaneously.
The ancient Indian astronomers used a unit of time called the 'muhurta'. How many minutes does a muhurta consist of?
B
Correct answer
Explanation
A muhurta consists of 45 minutes. It is a unit of time that is still used in some parts of India today.
What is the standard check-out time for most hotels?
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10:00 AM
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11:00 AM
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12:00 PM
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1:00 PM
C
Correct answer
Explanation
The standard check-out time for most hotels is 12:00 PM (noon).
What is the mathematical formula used to calculate the planetary hours?
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$$H = (12 + L + D + W) % 24$$
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$$H = (12 + L + D - W) % 24$$
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$$H = (12 - L - D + W) % 24$$
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$$H = (12 - L - D - W) % 24$$
A
Correct answer
Explanation
The mathematical formula used to calculate the planetary hours is $$H = (12 + L + D + W) % 24$$, where H is the planetary hour, L is the local mean time, D is the day of the week (0 for Sunday, 1 for Monday, ..., 6 for Saturday), and W is the week number (0 for the first week of the year, 1 for the second week, ..., 51 or 52 for the last week of the year).
What was the main function of the hourglass?
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Measuring time intervals
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Calculating distances
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Determining latitude and longitude
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Navigating ships
A
Correct answer
Explanation
The hourglass is a timekeeping device that measures time intervals by the flow of sand through a narrow opening.
Which of the following is an example of a sand clock?
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Hourglass
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Sandglass
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Sand timer
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All of the above
D
Correct answer
Explanation
Hourglass, sandglass, and sand timer are all different names for the same device, which consists of two glass bulbs connected by a narrow neck. Sand is allowed to flow from the upper bulb to the lower bulb at a constant rate, and the time is measured by marking the sand level at regular intervals.
Which of the following is an example of a mechanical clock?
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Water clock
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Sand clock
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Astrolabe
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Weight-driven clock
D
Correct answer
Explanation
A weight-driven clock is a mechanical clock that uses a weight to power its mechanism. The weight is attached to a cord or chain that is wrapped around a drum or pulley. As the weight falls, it turns the drum or pulley, which in turn drives the clock's mechanism.
What is the maximum number of time zones that a person can cross without experiencing jet lag?
D
Correct answer
Explanation
There is no limit to the number of time zones that a person can cross without experiencing jet lag. However, the more time zones that are crossed, the more severe the jet lag is likely to be.
What is the approximate time interval between two consecutive high tides?
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12 hours and 25 minutes
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24 hours and 50 minutes
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12 hours and 50 minutes
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24 hours and 25 minutes
A
Correct answer
Explanation
The approximate time interval between two consecutive high tides is 12 hours and 25 minutes.
What is the unit of time most commonly used in astrochronology?
D
Correct answer
Explanation
The year is the most commonly used unit of time in astrochronology because it is based on the Earth's orbit around the Sun. It is a convenient unit for measuring long periods of time, such as the age of the universe or the time it takes for a star to evolve.
What is the most accurate type of clock?
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Atomic clock
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Quartz clock
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Mechanical clock
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Digital clock
A
Correct answer
Explanation
Atomic clocks are the most accurate type of clock. They work by measuring the frequency of a specific atomic transition. Atomic clocks are used in a variety of applications, including navigation, telecommunications, and scientific research.
What is the time difference between two places on opposite sides of the International Date Line?
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12 hours
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24 hours
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36 hours
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48 hours
B
Correct answer
Explanation
The time difference between two places on opposite sides of the International Date Line is 24 hours.
What is the name of the time zone that is located on both sides of the International Date Line?
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UTC+12
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UTC-12
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UTC+13
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UTC-13
A
Correct answer
Explanation
UTC+12 is the name of the time zone that is located on both sides of the International Date Line.
How many hours are there in a day?
B
Correct answer
Explanation
There are 24 hours in a day.
What is the world record for the men's 1500-meter run?
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3:26.00
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3:28.00
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3:30.00
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3:32.00
A
Correct answer
Explanation
Hicham El Guerrouj set the world record for the men's 1500-meter run at 3:26.00 in 1998.