CCRUM Group B Mock Test Series 2027: Free 70+20+10 CBT Hub

Important Corrections Regarding Misinformation from Competitors

• (1) Combining Group A, B, and C into one general pattern: Many general websites simply mix up the exam patterns. We must make it clear according to the official rules that Group A (Research Officer) has a 70-mark CBT (40+20+10) along with a 30-mark Interview. However, all 11 of the Group B posts have a 100-mark exam (lasting 100 minutes) and no interview at all.
• (2) The myth that all Group B posts have the same 30-mark general section: It is entirely untrue that each Group B post has an identical general syllabus. While both Staff Nurse and MLT have 20 marks on General Awareness, Aptitude & Reasoning plus 10 marks on IT, the scientific Group B posts (ARO in Pharmacology/Botany, Research Assistant in Chemistry/Botany, and Investigator in Statistics) completely replace that aptitude section with 20 marks on Research Methodology, Biostatistics, Drug Development, and ASU/Herbal Techniques. The Accounts Officer includes Tally in their 10-mark IT section, and the Library Information Assistant (LIA) has 20 marks on Computer Science, IT and Library Automation!
• (3) The mistake of confusing the Hindi Assistant's 30-mark translation paper with a Group C qualifying typing test: Some websites treat this as if it were a Group C typing test. In reality, the Hindi Assistant exam consists of a 70-mark Objective CBT and a 30-mark Descriptive Translation Exam (800 to 1,000 words) with the marks from this paper counting directly towards the final 100-mark merit list.
• (4) Mistaking the MTS "no negative marking" for Group B: Do not believe the false claim that CCRUM exams have no negative marking. Although the Group C MTS has no penalty for wrong answers, every CBT in the CCRUM Group B exams does have a strict -0.25 mark penalty for each incorrect answer.

Example 1: A candidate applying for just 7 Staff Nurse positions blindly guesses 14 questions in the IT and General Aptitude (GA) sections. They answer 3 correctly and get 11 wrong. The calculation is (3 × 1.00) – (11 × 0.25) = 3.00 – 2.75 = +0.25 marks. By spending 14 questions they only gain a quarter of a mark and are therefore probably eliminated from the top 7 rankings.

Example 2: A Chemistry Research Assistant candidate applies a 50:50 elimination strategy to 8 difficult Research Methodology questions and ends up with 4 correct and 4 incorrect answers. The score is (4 × 1.00) – (4 × 0.25) = 4.00 – 1.00 = +3.00 net marks. This method of strategic guessing gives them a clear advantage.

Q1. (Staff Nurse - INC Syllabus) What is the most appropriate initial nursing intervention for a patient who is experiencing a severe anaphylactic reaction?
A. Administering intravenous antihistamines
B. Raising the patient's lower limbs
C. Giving intramuscular epinephrine [Correct]
D. Starting oxygen therapy at a high flow rate using a nasal cannula

Correct option: C. Giving intramuscular epinephrine [Correct] — Reason: Epinephrine (adrenaline) is the first-choice treatment for anaphylaxis since it quickly reverses both bronchoconstriction and cardiovascular collapse.
Incorrect options: A, B, D — Reason: Although oxygen and antihistamines may provide some support, they do not counteract the life-threatening systemic reaction as quickly or effectively as epinephrine.
Hint: Consider the most important and immediately life-saving medication included in emergency protocols.

Question 2 (MLT Core): In the field of hematology, what is the main purpose of using Romanowsky stains (such as Leishman or Wright stain) on a peripheral blood smear?
A. In order to detect the presence of malarial parasites only
B. To enable the staining of the leukocyte granules and nuclei so that the cells can be identified [Correct]
C. To determine the exact concentration of hemoglobin
D. To avoid the blood sample clotting on the slide

Correct answer: B [Correct] — Reason: Romanowsky stains include eosin and derivatives of methylene blue, which stain the acidic and basic parts of cells respectively, enabling the visual identification of different white blood cells (such as neutrophils, eosinophils, etc.).
Incorrect option: A — Reason: Although it is used for parasites, its main general purpose is the differentiation of white blood cells.
Incorrect option: C — Reason: Hemoglobin is determined by means of the cyanmethemoglobin method, not by visual staining.
Incorrect option: D — Reason: It is anticoagulants (for example, EDTA) that prevent coagulation, not the stains.
Hint: These stains cause different types of white blood cells to show pink, blue, and purple colours.

Q3. (RA Chemistry - ASU Drug Standardisation) When standardising Unani and Ayurvedic formulations, what does the 'Ash Value' mainly show?
A. The quantity of volatile oils contained in the drug
B. The amount of alkaloids in the herbal mixture
C. There is present inorganic material, for example earthy or metallic impurities [Correct]
D. The moisture content in the crude drug

The right answer is C [Correct] because when determining the ash value, the herbal drug is incinerated in order to destroy its organic material and what remains are inorganic salts, silica, and earthy impurities, which thus act as a key measure of purity.
Option (Incorrect): A, B, and D — Reason: Volatile oils are determined by extraction, alkaloids by titration or chromatography, and moisture by loss on drying (LOD).
Hint: Consider the result when organic plant material has been completely burned (incinerated).

Question 4. (Accounts Officer - GFR 2017) What is the maximum monetary limit prescribed by the General Financial Rules (GFR) 2017 below which goods may be purchased directly without having to invite quotations or bids?
A. ₹25,000 [Correct]
B. ₹50,000
C. ₹1,00,000
D. ₹2,50,000

Correct answer: A. ₹25,000 [Correct] — because Rule 154 of the GFR 2017 permits the purchase of goods without calling for quotations or bids up to an amount of ₹25,000 in each case, on the condition that the competent authority certifies the reasonableness of the price.
Option (Incorrect): B, C, and D — Reason: Larger amounts need to be handled by Local Purchase Committees (up to ₹2.5 Lakhs) or through formal bidding procedures.
Note: This is the minimum threshold for direct and hassle-free government buying.

Question 5 (ARO/RA/Investigator - Research Methodology): In a clinical trial involving a new Unani formulation, the participants are at random allocated to either the treatment group or the placebo group, and both the researchers and the participants remain unaware of who is receiving which treatment. What kind of study design is this?
A. Observational Cohort Study
B. A double-blind randomized controlled trial (RCT) [Correct]
C. Retrospective Case-Control Study
D. Cross-Sectional Survey

The right answer is B [Correct] since "randomly assign" shows that this is a randomised controlled trial and "neither... know" means that the study is double-blinded, which is the best method for eliminating bias in clinical research.
Option (Incorrect): A, C, and D — Reason: Since observational and retrospective studies do not include active intervention or blinding on the part of the researchers.
Tip: Search for the key terms 'random assignment' and 'neither knows'.

Question 6 (LIA - Library Automation): What does the MARC 21 field '245' stand for in the case of library cataloging?
A. Main entry under personal name
B. Publication, distribution, etc. (Imprint)
C. Title Statement [Correct]
D. Physical Description

C is the correct answer because in the Machine-Readable Cataloging (MARC 21) standards the 245 field is specifically designated for the Title and Statement of Responsibility section.
Option (Incorrect): A on the grounds that the personal name is in field 100.
Option (Incorrect): B — because the publication/imprint is listed in field 260/264.
Option (Incorrect): D — Reason: The physical description is in field 300.
Note: This is the basic tag used for entering a book's main name.

Question 7. (For Staff Nurse/MLT – Reasoning) If 'HOSPITAL' is coded as 'JQUQKVC', how is 'CLINIC' coded in that system?
A. ENKPKE [Correct]
B. EMKPKE
C. ENLPLE
D. DMINMD

Correct answer: A. ENKPKE [Correct] — because the pattern involves a forward shift of two positions for each letter. H with a +2 becomes J, O with a +2 becomes Q, S with a +2 becomes U, and so on. When you apply a +2 shift to CLINIC, C with a +2 becomes E, L with a +2 becomes N, I with a +2 becomes K, N with a +2 becomes P, I with a +2 becomes K, and C with a +2 becomes E.
Option (Incorrect): B, C, and D — Reason: These options involve the wrong alphabetic shifts.
Tip: Take each letter and move it forward by precisely two places in the alphabet.

Question 8. (For the Accounts Officer - Tally ERP) What shortcut key in Tally ERP 9 is used to access the 'Contra Voucher' when recording cash and bank transfers?
A. F4 [Correct]
B. F5
C. F6
D. F7

The right answer is A. F4 [Correct] because in Tally, F4 is the shortcut key assigned to open the Contra Voucher, which is specifically used for internal transfers between cash and bank accounts.
Option (Incorrect): B — Reason: F5 is the code for a Payment Voucher.
Option (Incorrect): C — Reason: F6 is the one used for a Receipt Voucher.
Option (Incorrect): D — Reason: F7 is assigned to the Journal Voucher.
Note: The first functional key is the one that comes after the keys for the basic company features.

Q9. (Hindi Assistant - Objective CBT) What is the correct administrative Hindi term for the word 'Probation'?
A. प्रतिनियुक्ति (Deputation)
B. परिवीक्षा (Pariviksha) [Correct]
C. पदोन्नति (Promotion)
D. निलंबन (Suspension)

Correct answer: B. Pariviksha [Correct] — Reason: In official government terminology, the initial trial period of service, known as 'Probation', is directly translated as 'परिवीक्षा'.
Option (Incorrect): A, C, and D — Reason: 'Deputation' is 'प्रतिनियुक्ति', 'Promotion' is 'पदोन्नति', and 'Suspension' is 'निलंबन'.
Hint: यह नौकरी लगने के तुरंत बाद का परीक्षण काल होता है।

Q10. (General IT - All Posts) Which of the following file extensions is mainly linked to a Microsoft Excel Macro-Enabled Workbook?
A. .xlsx
B. .xlsm [Correct]
C. .csv
D. .xltx

Option (Correct): B. .xlsm [Correct] — Reason: The 'm' in .xlsm stands for 'macro', and this file extension is needed when saving workbooks that contain VBA code or macros.
Option (Incorrect): A — Reason: .xlsx is the standard format for workbooks that do not include macros.
Option (Incorrect): C — Reason: .csv is a simple text format (Comma Separated Values).
Option (Incorrect): D — Reason: .xltx is a type of template file.
Hint: Look for the letter that means "Macro".

1. Go to the testing portal at https://mocktestcenter.com/ccrum-group-b/mock-test

2. Choose your desired practice mode by using the 5-tab selector at the top of the page (Clinical, Scientific, Admin, Section 2/3 Boosters, or PYQ Papers).

3. Have a look at the on-screen briefing which outlines the 100-minute timer and the 0.25 negative marking rules.

4. Start your test session and have a go at the official, post-specific 70+20+10 (or 70+30) CBT interface.

5. You can get instant access to your raw score, analyze your errors against the detailed PDF solutions, and assess how well prepared you are for your specific CCRUM vacancy by submitting your test.