Delhi Police Constable flashcards
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31 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Article 239AA
- Provision granting the National Capital Territory of Delhi a Legislative Assembly and Council of Ministers, while reserving police, public order and land for the Union.
- Fundamental Duties
- Eleven duties listed in Article 51A, added by the 42nd Amendment in 1976, obliging citizens to respect the Constitution and protect the environment.
- Indian Standard Meridian
- The longitude 82 degrees 30 minutes East, which sets Indian Standard Time at UTC plus 5 hours 30 minutes.
- Godavari river source
- The Godavari, the longest peninsular river, rises at Trimbakeshwar in Maharashtra and flows east into the Bay of Bengal.
- Opposite letter rule
- In the English alphabet, letters opposite each other (A with Z, B with Y) have position numbers that always add up to 27.
- Row ranking formula
- When a person ranks nth from the left and mth from the right of a row, the total number of people equals n plus m minus one.
- Clock hand gain
- The minute hand gains 5.5 degrees per minute over the hour hand; the two hands overlap 11 times in every 12 hours.
- Valid syllogism conclusion
- A conclusion is valid only if it is true in every possible diagram of the premises; 'All A are B' never proves 'All B are A'.
- Direction after right turn
- Facing north, a right turn points you east; facing east, a right turn points you south. Sketching a compass avoids errors.
- Successive percentage change
- Two successive changes of a percent and b percent produce a net change of a plus b plus a times b divided by 100.
- CI minus SI for two years
- For two years, the gap between compound and simple interest equals the principal multiplied by the square of the rate divided by 100.
- Speed unit conversion
- To convert kilometres per hour to metres per second multiply by 5/18; to reverse it multiply by 18/5.
- Combined work time
- If A finishes a job in x days and B in y days, working together they finish it in x times y divided by x plus y days.
- Profit percentage base
- Profit percent and loss percent are always computed on cost price, while discount percent is computed on the marked price.
- Circle area and circumference
- A circle of radius r has area pi times r squared and circumference 2 times pi times r; a cylinder adds height for volume.
- Volatile versus non-volatile
- RAM is volatile and loses its contents when power is cut; ROM keeps data permanently and is used for firmware such as the BIOS.
- Memory size ladder
- Eight bits make one byte; 1024 bytes make a kilobyte, 1024 kilobytes a megabyte, and 1024 megabytes a gigabyte.
- Ctrl+Z and Ctrl+Y
- Ctrl+Z undoes the last action in most Windows applications, while Ctrl+Y redoes an action that was just undone.
- IPv4 versus IPv6
- IPv4 addresses are 32 bits long and written in four decimal octets; IPv6 addresses are 128 bits and written in hexadecimal groups.
- Well-known ports
- HTTP uses port 80, HTTPS uses port 443, and FTP uses port 21; these defaults let clients reach the right service.
- Worm versus trojan
- A worm spreads by itself across networks without a host file, whereas a trojan hides inside apparently useful software the user installs.
- OSI layer count
- The OSI reference model has seven layers; TCP operates at the transport layer and IP at the network layer.
- स्वर और व्यंजन
- हिंदी वर्णमाला में 11 स्वर और 33 व्यंजन होते हैं; स्वर स्वतंत्र बोले जाते हैं और व्यंजन स्वर की सहायता से।
- दीर्घ संधि
- जब दो स्वर मिलकर दीर्घ स्वर बनाते हैं तो उसे दीर्घ संधि कहते हैं, जैसे विद्या + आलय = विद्यालय।
- तत्पुरुष समास
- जिस समास में उत्तर पद प्रधान हो और पूर्व पद कारक चिह्न लुप्त करके जुड़ा हो, वह तत्पुरुष है, जैसे राजपुत्र।
- उपसर्ग और प्रत्यय
- उपसर्ग शब्द के आरम्भ में जुड़कर अर्थ बदलता है, जैसे प्र + हार; प्रत्यय अंत में जुड़ता है, जैसे लड़क + पन।
- भाववाचक संज्ञा
- जो संज्ञा किसी भाव, गुण या दशा का बोध कराए, वह भाववाचक संज्ञा है, जैसे मिठास, बचपन और सुंदरता।
- मुहावरा: आँख का तारा
- यह मुहावरा अत्यंत प्रिय व्यक्ति के लिए प्रयोग होता है; जैसे बच्चा अपने माता-पिता की आँख का तारा होता है।
- काल के तीन भेद
- क्रिया के जिस रूप से कार्य के समय का बोध हो उसे काल कहते हैं; इसके तीन भेद भूत, वर्तमान और भविष्यत् हैं।
- विलोम शब्द
- विलोम शब्द वे होते हैं जिनका अर्थ एक-दूसरे के विपरीत होता है, जैसे दिन का विलोम रात और ज्ञान का अज्ञान।
- व्यक्तिवाचक संज्ञा
- किसी विशेष व्यक्ति, स्थान या वस्तु के नाम को व्यक्तिवाचक संज्ञा कहते हैं, जैसे दिल्ली, राम और गंगा।