Bihar Police SI study materials
Bihar Police SI study resources

Bihar Police SI flashcards

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32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Bihar Diwas date
Observed every year on 22 March, it marks the day in 1912 when Bihar was separated from Bengal. Official state celebration began in 2010.
Nalanda Mahavihara
An ancient Buddhist monastic university in present-day Bihar, now a UNESCO World Heritage Site inscribed in 2016, known for its scholars and excavated ruins.
Kunwar Singh
A Rajput zamindar of Jagdishpur who led the 1857 uprising in Bihar, notable for defeating British forces despite being in his late sixties.
Article 32
The right to constitutional remedies, allowing a citizen to move the Supreme Court directly for enforcement of fundamental rights. Ambedkar called it the heart and soul of the Constitution.
Kosi River
A tributary of the Ganga in Bihar, called the sorrow of Bihar because of frequent and shifting floods caused by heavy silt load and changing course.
Kesavananda Bharati case
The 1973 Supreme Court judgment holding that Parliament cannot amend the basic structure of the Constitution, and that the Preamble is part of the Constitution.
Real versus nominal GDP
Real GDP is measured at constant base-year prices and reflects actual output growth; nominal GDP is measured at current prices and includes price changes.
Alligation rule
A method for finding the ratio in which two ingredients of known prices must be mixed to obtain a mixture of a given mean price.
Simple interest formula
Interest computed only on the principal: SI = P x R x T / 100, where P is principal, R the annual rate percent, and T the time in years.
Work-rate shortcut
If two persons working alone finish a job in x and y days, working together they finish it in xy divided by (x + y) days.
Successive discount formula
Two successive discounts of a percent and b percent are equivalent to a single discount of a + b minus ab/100 percent.
Odd days of a year
The leftover days beyond complete weeks. An ordinary year has 1 odd day, a leap year has 2, 100 years have 5, and 400 years have 0.
Clock hand gain
The minute hand gains 5.5 degrees per minute over the hour hand; the two hands coincide every 65 5/11 minutes.
Syllogism validity rule
A conclusion is valid only if it is true in every possible Venn diagram consistent with the given premises, not merely in one arrangement.
Opposite letter pairs
In the alphabet, letters equidistant from the ends sum to 27: A pairs with Z, B with Y, C with X, and so on up to M with N.
बहुव्रीहि समास
वह समास जिसमें दोनों पद मिलकर किसी तीसरे अर्थ की ओर संकेत करते हैं, जैसे चक्रधर का अर्थ विष्णु या शिव होता है।
तत्पुरुष समास
वह समास जिसमें उत्तर पद प्रधान होता है और पूर्व पद कारक चिह्न लुप्त होकर जुड़ता है, जैसे राजपुत्र अर्थात राजा का पुत्र।
कृत् प्रत्यय
क्रिया या धातु के अंत में जुड़कर नया शब्द बनाने वाले प्रत्यय, जैसे पढ़ से पढ़ाई और लिख से लेखक।
अंधे की लाठी
एक प्रचलित मुहावरा जिसका अर्थ है किसी का एकमात्र सहारा या भरोसा, विशेषकर कठिन परिस्थिति में।
वीर रस
नौ रसों में से एक, जिसमें युद्ध, दान या त्याग के वर्णन से उत्साह और साहस का भाव जागृत होता है।
Subject-verb agreement rule
A singular subject takes a singular verb. In the phrase one of plus a plural noun, the verb agrees with one and stays singular.
Since versus for
Since is used with a specific point in time, such as since 2010, while for is used with a duration, such as for five years.
Let the cat out
An idiom meaning to reveal a secret, usually accidentally, thereby spoiling a surprise or exposing information meant to be hidden.
Advice versus advise
Advice is a noun meaning a recommendation, while advise is a verb meaning to give a recommendation; they are often confused in writing.
Article 155
The constitutional provision stating that the Governor of a state is appointed by the President by warrant under his hand and seal.
Bihar Legislative Council
The upper house of Bihar's legislature, a permanent body of 75 members with one-third retiring every two years, unlike the Assembly.
Chausa
A place in Buxar district of Bihar where the Ganga enters the state, and also the site of a 1539 battle between Humayun and Sher Shah.
Compound interest formula
For principal P, annual rate R percent and time T years, the amount is P times (1 + R/100) raised to T; interest is amount minus principal.
Speed unit conversion
To convert kilometres per hour into metres per second, multiply by 5/18; to convert metres per second into kilometres per hour, multiply by 18/5.
Blood relation tree
A diagram method for reasoning questions: vertical lines show parent-child links, horizontal lines show siblings or spouses, and gender must be marked.
Direction after turns
Facing north, a right turn leads east and a left turn leads west; two successive right turns reverse the original facing direction.
उपसर्ग
वे शब्दांश जो किसी शब्द के आरंभ में जुड़कर उसका अर्थ बदल देते हैं, जैसे अनु, अप, निर और प्र।