CBSE Junior Assistant cheat sheet

Tier-1 is a computer-based objective test of 100 questions worth 100 marks; the standard composition is 50 questions on General Awareness and 50 on reasoning/quantitative aptitude and language proficiency, with a composite duration of about 2 hours (no per-section time limit).

Negative marking: one-fourth (0.25) of the marks assigned to a question is deducted for each wrong answer; unattempted questions carry no penalty, so a guess is only rational when the expected value exceeds zero (probability correct > 0.25).

General Awareness for this exam concentrates on the Indian Constitution (Preamble, Fundamental Rights, Fundamental Duties, Directive Principles), Indian polity institutions, modern Indian history, geography, economy basics, general science, and current affairs of the preceding 6-12 months.

Fundamental Rights (Articles 12-35) are justiciable and enforceable through writs under Article 32 (Supreme Court) and Article 226 (High Courts); Fundamental Duties (Article 51A) and Directive Principles (Articles 36-51) are not directly enforceable in courts.

Quantitative aptitude covers percentage, ratio and proportion, average, profit and loss, simple and compound interest, time-speed-distance, time and work, mensuration, and data interpretation from tables, bar graphs and pie charts.

Reasoning covers series (number and letter), coding-decoding, blood relations, direction sense, syllogism, seating arrangement, analogy, classification, and non-verbal figure series; syllogism answers follow set-theory validity, not real-world truth.

English language section tests reading comprehension, error spotting, sentence improvement, synonyms/antonyms, idioms, one-word substitution, fill in the blanks, and active-passive/ direct-indirect narration; spelling and subject-verb agreement dominate error-spotting items.

Arithmetic shortcut rules: successive percentage changes of a% then b% equal a + b + ab/100; if price rises by r%, consumption must fall by 100r/(100+r)% to keep expenditure constant; simple interest = P x R x T/100 and compound amount = P(1 + R/100)^T.

The Tier-2 typing test is a qualifying skill test, not a merit-scoring paper: candidates must meet the prescribed speed and accuracy on a computer, and failing it cancels the Tier-1 merit position regardless of marks.

Standard speed norms for clerical-level posts are about 30 words per minute in English or 25 words per minute in Hindi; the test duration is typically 10 minutes, and the passage is printed and typed on the candidate's chosen language.

A 'word' in the typing test is conventionally 5 keystrokes including spaces; gross speed = (total characters typed / 5) / minutes, and net speed = gross speed minus one word for each mistake, or computed on correct words only.

Accuracy is calculated as (correct words / total words typed) x 100; most recruitment rules require high accuracy (commonly 90-95 percent) in addition to the minimum speed, so accuracy outranks raw speed.

The test is taken on a standard QWERTY keyboard with the candidate's own typing method permitted (touch typing or sight typing); external keyboards, spell-check, and copy-paste are normally disabled.

Backspace and delete are usually permitted, but the passage must be completed within the allotted time; leaving the passage incomplete reduces the effective word count and therefore the measured speed.

Hindi typing on the standard government layout (Remington GAIL or Inscript, as specified in the notice) differs from a transliteration keyboard; candidates must practise the layout named in the official advertisement.

Tier-2 objective papers carry negative marking on the same one-fourth pattern as Tier-1 unless the notice says otherwise; the typing test itself is graded pass/fail, not by marks.

Common typing errors that cost the most: transposed letters, missing spaces after punctuation, wrong use of capital letters, and confusion between similar keys (b/v, i/l, m/n, and the number row).