All Free General Knowledge MCQs with Answers
Every General Knowledge question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
7,202 questions · page 320 of 361
6381. What does DST stand for?
- A. Daily Standard Time
- B. Dual Solar Time
- C. Determined Standard Time
- D. Daylight Saving Time
Explanation: DST stands for Daylight Saving Time, the practice of advancing clocks in summer.
Correct answer: Daylight Saving Time- A. Clocks move forward by one hour
- B. Clocks move forward by thirty minutes
- C. Clocks are left unchanged
- D. Clocks move back by one hour
Explanation: When daylight saving starts, clocks are normally set forward by one hour ("spring forward").
Correct answer: Clocks move forward by one hour- A. No; it reduces total daylight
- B. No; it changes the clock hours during which daylight occurs
- C. Yes, it adds an hour of sunlight
- D. Yes, but only near the equator
Explanation: Daylight saving does not create extra daylight; it shifts an hour of daylight from the morning to the evening.
Correct answer: No; it changes the clock hours during which daylight occurs- A. British Standard Time
- B. Belfast Solar Time
- C. British Summer Time
- D. Bristol Standard Time
Explanation: BST stands for British Summer Time, the UK's daylight saving time.
Correct answer: British Summer Time- A. UTC+2
- B. UTC−1
- C. UTC+0
- D. UTC+1
Explanation: During British Summer Time, UK clocks run one hour ahead of UTC (UTC+1).
Correct answer: UTC+1- A. No; it uses GMT during standard time and BST during daylight saving time
- B. Yes, except in leap years
- C. Yes, always
- D. No; it uses BST all year
Explanation: London keeps GMT (UTC+0) in winter and switches to BST (UTC+1) in the summer months.
Correct answer: No; it uses GMT during standard time and BST during daylight saving time- A. 4:00 PM
- B. 5:00 PM
- C. 6:00 PM
- D. 3:00 PM
Explanation: Pakistan (UTC+5) is five hours ahead of GMT, so noon in London is 5:00 PM in Pakistan.
Correct answer: 5:00 PM- A. 5:00 PM
- B. 6:00 PM
- C. 4:00 PM
- D. 3:00 PM
Explanation: BST is UTC+1, so Pakistan (UTC+5) is four hours ahead; noon BST is 4:00 PM in Pakistan.
Correct answer: 4:00 PM6389. What does IDL stand for?
- A. Indian Daylight Line
- B. International Daylight Line
- C. Intercontinental Distance Line
- D. International Date Line
Explanation: IDL stands for the International Date Line, the line where the calendar date changes.
Correct answer: International Date Line- A. The 180° meridian
- B. The 0° meridian
- C. The 90° E meridian
- D. The 90° W meridian
Explanation: The International Date Line roughly follows the 180° meridian, opposite the Prime Meridian.
Correct answer: The 180° meridian- A. The Indian Ocean
- B. The Pacific Ocean
- C. The Arctic Ocean
- D. The Atlantic Ocean
Explanation: The International Date Line runs mainly through the Pacific Ocean to avoid splitting populated land areas.
Correct answer: The Pacific Ocean- A. To avoid shipping lanes
- B. To follow ocean currents
- C. To accommodate countries and island groups within their chosen calendar dates
- D. To align with time zone borders of the USA
Explanation: The line zigzags so that island nations and territories stay on the same calendar date as their chosen side.
Correct answer: To accommodate countries and island groups within their chosen calendar dates- A. Subtract one calendar day
- B. Add twelve hours
- C. No change
- D. Add one calendar day
Explanation: Travelling westward across the date line, you repeat a day — you add one calendar day.
Correct answer: Add one calendar day- A. Subtract one calendar day
- B. Subtract twelve hours
- C. No change
- D. Add one calendar day
Explanation: Travelling eastward across the date line, you skip a day — you subtract one calendar day.
Correct answer: Subtract one calendar day- A. Wednesday
- B. Tuesday
- C. Monday
- D. Sunday
Explanation: Crossing the date line westward adds a day, so Monday becomes Tuesday.
Correct answer: Tuesday- A. Tuesday
- B. Monday
- C. Sunday
- D. Saturday
Explanation: Crossing the date line eastward subtracts a day, so Monday becomes Sunday.
Correct answer: Sunday- A. Banaba
- B. Tabiteuea
- C. Tarawa
- D. Kiritimati, also called Christmas Island
Explanation: Kiritimati (Christmas Island) in Kiribati uses UTC+14, the earliest time zone in the world.
Correct answer: Kiritimati, also called Christmas Island- A. UTC−11
- B. UTC−12
- C. UTC−10
- D. UTC+11
Explanation: Pago Pago in American Samoa uses UTC−11, near the end of the world's time zones.
Correct answer: UTC−11- A. Twenty-three hours
- B. Twenty-five hours
- C. Twenty-four hours
- D. Twenty-six hours
Explanation: The difference between UTC+14 and UTC−11 is 14 + 11 = 25 hours, the largest time gap between two inhabited places.
Correct answer: Twenty-five hours6400. If it is 10:00 AM Monday in Pago Pago (UTC−11), what time and day is it in Kiritimati (UTC+14)?
- A. 11:00 AM Monday
- B. 10:00 AM Tuesday
- C. 11:00 AM Tuesday
- D. 10:00 AM Monday
Explanation: Kiritimati is 25 hours ahead of Pago Pago, so 10:00 AM Monday there is 11:00 AM the next day, Tuesday, in Kiritimati.
Correct answer: 11:00 AM Tuesday