DSSSB JE Exam cheat sheet
DSSSB JE Exam · Keep the key ideas within reach.
General Awareness
Delhi's legislative assembly has 70 seats; the Municipal Corporation of Delhi (unified, 2022) has 250 wards.
Article 239AA (69th Amendment, 1991) created the Delhi Legislative Assembly and gave it powers over State List and Concurrent List subjects, except police, public order and land.
The Lieutenant Governor of Delhi is appointed by the President; the Chief Minister is appointed by the President (Article 239AA) and heads the Council of Ministers.
Fundamental Rights (Articles 12-35) are enforceable through writs under Article 32 (Supreme Court) and Article 226 (High Courts).
The Election Commission of India (Article 324) is a constitutional body; the NITI Aayog is an executive (non-constitutional) body.
Key dates: Jallianwala Bagh 1919, Non-Cooperation Movement 1920, Dandi March 1930, Quit India 1942, Independence 15 August 1947, Constitution in force 26 January 1950.
Basic SI units: force newton (N), pressure pascal (Pa), energy joule (J), power watt (W), frequency hertz (Hz).
Largest/smallest: Rajasthan is the largest Indian state by area, Goa the smallest; Uttar Pradesh is the most populous state.
General Intelligence and Reasoning Ability
Coding-decoding: find the fixed shift between letters (e.g., A→D is +3) and apply it uniformly; in mixed codes check each letter position separately.
Blood relations: draw a family tree using symbols; vertical line for parent-child, horizontal for siblings/spouse, then answer from the diagram.
Series on letters: convert to positions (A=1 … Z=26) to reveal arithmetic or alternating patterns.
Direction sense: use a coordinate grid; north +, south −, east +, west −; final distance = √(x² + y²).
Odd-one-out: test each option against a common property (prime, perfect square, divisibility, letter symmetry) before choosing.
Analogy: identify the relation type (part-whole, cause-effect, synonym, worker-workplace) and apply the same relation to the pair.
Syllogism: draw Venn diagrams; a conclusion is valid only if true in every possible diagram consistent with the statements.
Seating arrangement: for a circle, fix one person and count clockwise/counterclockwise; for a row, mark left/right from the stated facing direction.
Arithmetical and Numerical Ability
Percentage change = (new − old)/old × 100; successive changes a% then b% give net change a + b + ab/100.
Simple interest = P·R·T/100; compound interest = P(1 + R/100)^T − P.
Profit% = (SP − CP)/CP × 100; if an article is sold at a loss of x%, SP = CP(1 − x/100).
Speed = distance/time; to convert km/h to m/s multiply by 5/18.
Average = sum of observations / number of observations; if each value increases by k, the average increases by k.
Ratio a:b with total T gives parts aT/(a+b) and bT/(a+b).
Time and work: if A does a job in x days, A's one-day work is 1/x; combined rate = 1/x + 1/y.
Area formulas: circle πr², triangle ½ × base × height, rectangle l × b; volume of a cylinder = πr²h.
Hindi Language and Comprehension
संधि: स्वर संधि (दो स्वरों के मेल से), व्यंजन संधि और विसर्ग संधि - उदाहरण: विद्या + आलय = विद्यालय (दीर्घ संधि)।
समास: तत्पुरुष में उत्तर पद प्रधान, द्वंद्व में दोनों पद प्रधान, बहुव्रीहि में कोई भी पद प्रधान नहीं होता।
उपसर्ग शब्द के आरंभ में जुड़ता है (प्र + हार = प्रहार); प्रत्यय शब्द के अंत में जुड़ता है (लड़क + पन = लड़कपन)।
पर्यायवाची: सूर्य - रवि, भानु, दिनकर, आदित्य; पृथ्वी - धरा, वसुधा, भूमि, धरती।
विलोम शब्द: अंधकार × प्रकाश, उत्कर्ष × अपकर्ष, सजीव × निर्जीव, आदि × अंत।
मुहावरे अर्थ सहित: 'नौ दो ग्यारह होना' = भाग जाना; 'आँख का तारा' = बहुत प्यारा; 'कान भरना' = चुगली करना।
वाक्य के अंग: उद्देश्य (कर्ता) और विधेय (कथन); रचना के आधार पर सरल, संयुक्त और मिश्र वाक्य।
वर्तनी: 'अनुच्छेद' में अनु + उच्छेद; 'उत्साह' में त्स संयुक्त व्यंजन - हलंत सहित लिखें।
English Language and Comprehension
Subject-verb agreement: singular subject takes singular verb; 'each, every, either, neither, everyone' are singular.
Articles: 'a/an' before singular countable nouns (an before vowel sound); 'the' for specific or unique references.
Tenses: present perfect (has/have + past participle) for past actions with present relevance; past perfect (had + participle) for the earlier of two past actions.
Active to passive: object becomes subject, verb becomes be + past participle, agent introduced by 'by'.
Direct to indirect speech: change pronouns to match the reporter, shift tense one step back, and adjust time/place words (now → then, today → that day).
Prepositions with fixed pairs: 'comprise' takes no 'of'; 'composed of', 'consist of', 'superior to', 'prefer to'.
Idioms: 'to let the cat out of the bag' = reveal a secret; 'once in a blue moon' = very rarely; 'a bolt from the blue' = a sudden shock.
Synonyms/antonyms: 'benevolent' = kind (antonym 'malevolent'); 'candid' = frank; 'frugal' = thrifty (antonym 'extravagant').