Chemical Engineering Chemical Environmental Engineering
Q Which of the following is the most widely used disinfectant in water treatment ?
  • A A. Chlorine
  • B B. Irradiation of water by ultraviolet light
  • C C. Cation exchanger
  • D D. Coagulation
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
Ω„Ϊ‘Ψ§Ϊ©Ψ§ΨŒ Ω…ΨͺΩ†Ψ§Ψ²ΨΉΨŒ Ψ¬ΪΎΪ―Ϊ‘Ψ§Ω„Ωˆ

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Past Papers

Archaeology & Tourism Department - 20191Archaeology & Tourism Department - 20191Assistant BOR1Assistant Controller-Morning 23-11-2024 (2024)1Assistant Director (HR and ADMIN) BS-17 (2025)1Assistant Director ASF (BS-17) Batch 01 (05-08-2024) (2024)1Assistant Director Fisheries (BS-17) (1-06-2025) (2025)1Assistant PESSI Held on 19-10-2025 (2025)2Assistant Sub Inspector BPS-11 (BATCH-1) 08-04-2025 (2025)1Assistant Superintendent / Deputy Superintendent Jail (GK) (2025)1Assistant) PPSC 25-08-2024 (2024)2Bio Medical Engineer (Labour & Resource) Held on 10-08-2024) (2024)3Chief Officer/Municipal Officer (Regulations) Local Government & Community Develop1Chief Officer/Municipal Officer (Regulations) Local Government & Community Development (Held on 11-08-2024) (2024)1Clubbed (27-04-2025) (2025)1Clubbed Case 74 – Assistant (BS-16) Various Departments – 2024 (2024)3Clubbed Case-76 (Evening) Held on 08-06-2024 (2024)2Clubbed Case-85 (Morning) Held on 08-06-2024 (2024)3Clubbed Case-91(Morning) Punjab Special Education Department (10-08-2024) (2024)2Clubbed Case-97 (Evening) Held on 13-07-2024 (2024)3Clubbed Case-Various Post(Labour Inspector/Officer2Clubbes Case 98 – Various Posts -2024 (2024)1Concept Academy Notes111Data Entry Operator (BS-12) (31-05-2025) (2025)2Educator (BS-16) Punjab Special Education Held on 13-07-2024 (2024)1FIA - Assistant - FIA - 20181FIA - Sub Inspector (Investigation) - FIA - 20181FIA ASI Test By VU on 13-12-20211FIA Assistant paper 14-12-20211FIA Past Paper Assistant/ASI/Inspector1FIA-Assistant / Inspector / ASI / UDC / LDC / Constable1FIA-Assistant Director / Inspector1FIA-Assistant Director / Inspector / Sub-Inspector / ASI / Clerk1FIA-Assistant/SI/ASI/UDC/LDC/Constable1FIA-FIA (All Posts) - Act Knowledge1FIA-Stenotypist1FIA-Sub Inspector1INSTRUCTOR/LECTURER (MALE) ENGLISH (BS-17) (2024)1Inspector (BS-16) Tourist Services (DTS)2Inspector Cooperative (Cooperative Department) Held on 10-08-2024 (2024)2Junior Clerk (BS-11) (1-06-2025) (2025)1Junior Clerk (Morning) Held on 14.12.2025 (2025)1Junior Clerk BOR Held on 20.12.2025 (2025)1Lecturer Punjabi (BS-17) (Special Education Department) Held on 13-07-2024 (2024)1Lecturer Urdu (Special Education Department) Held on 10-08-2024 (2024)3PMS Ministerial (13-04-2025) (2025)1PMS Ministerial Qouta 202536PPSC - ASSISTANT FOOD CONTROLLER (BS 15) 09J17J2022 - FOOD DEPARTMENT - 20232PPSC - ACCOUNTS OFFICER (BS 16) - FINANCE DEPARTMENT - 20111PPSC - ASI - Punjab Police (Service Quota) - 20193PPSC - ASSISTANT (BPS 14) - PPSC - 20151PPSC - ASSISTANT (BPS 16) - CLUBBED CASES - 20241PPSC - ASSISTANT (BPS 16) - PLANNING & DEVELOPMENT DEPARTMENT - 20162PPSC - ASSISTANT (BPS 16) - PPSC - 20161PPSC - ASSISTANT AUDIT & ACCOUNTS (BPS 14) - PUNJAB FINANCE DEPARTMENT - 20111PPSC - Accountant - Local Government & Community Development - 20201PPSC - Assistant (BS 16) - (PESS) Labour & Human Resource Department - 20201PPSC - Assistant (BS 16) - Board of Revenue - 20221PPSC - Assistant (BS 16) - Chief Minister Office Overseas Pakistanis -2PPSC - Assistant (BS 16) - Livestock & Dairy Development - 20201PPSC - Assistant (BS 16) - PPSC - 00002PPSC - Assistant (BS 16) - PPSC - 00011PPSC - Assistant (BS 16) - Punjab Public Service Commission (PPSC) - 00001PPSC - Assistant - Agricultural Department - 20181PPSC - Assistant - Agriculture Department - 20202PPSC - Assistant - Clubbed Cases Various Departments - 20244PPSC - Assistant - Disaster Management Department (Board of Revenue) - 20222PPSC - Assistant - Housing Urban Development & Public Health Engineering Department (Rawalpindi Region) - 20211PPSC - Assistant - Labour and Human Resource - 20192PPSC - Assistant - Lahore High Court (LHC) - 20195PPSC - Assistant - Planning & Development Punjab - 20194PPSC - Assistant - Population Welfare Department - 20192PPSC - Assistant - Provincial Disaster Management Authority (BOR) - 20212PPSC - Assistant - Punjab Police Department - 20202PPSC - Assistant - S&GAD Punjab - 00002PPSC - Assistant - Services and General Administration Department (S&GAD) - 00001PPSC - Assistant - Zakat & Usher Department - 20211PPSC - Assistant BS 16 - (Clubbed Cases) - 20232PPSC - Assistant BS 16 - (Clubbed Cases) - 20231PPSC - Assistant Director (Accounts) / Lecturer Psychology 14 Jul 2024 - Higher Education Department & Others - 20242PPSC - Assistant Director (Accounts) / Lecturer Psychology 14 Jul 2024 - Higher Education Department & Others - 20242PPSC - Assistant Director (BS 17) - Local Government Punjab - 20202PPSC - Assistant Director (BS 17) - Population Welfare Department - 20201PPSC - Assistant Director - Labour & Human Resource Department Punjab - 20193PPSC - Assistant Director - Local Govt & Community Development - 20183PPSC - Assistant Director - Planning & Development Department (P&D) - 20192PPSC - Assistant Director - Punjab Employees Social Security Institution (PESSI) - 20192PPSC - Assistant Protocol Officer - Directorate General Protocol - 00003PPSC - Assistant Sub Inspector (ASI) - Anti Corruption Department - 20202PPSC - Assistants / Head Clerk (BS 16) - Local Government - 20202PPSC - Caretaker (BS 14)- Lahore High Court - 20193PPSC - Caretaker- Lahore High Court (LHC) - 20191PPSC - Chief Officer / Municipal Officer (BS 16) (Regulations) 11/08/2024 (Morning) - Local Government & Community Development Department - 20242PPSC - Chief Officer / Municipal Officer (BS 16) (Regulations) 11/08/2024 (Morning) - 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Labour & Human Resource Department - 20193PPSC - Educator (BS 16) - Education Department Punjab - 20242PPSC - Elementary School Educator (ESE) General - Labour & Human Resource Department - 20197PPSC - FOOD GRAIN SUPERVISOR (BS 09) - FOOD DEPARTMENT PUNJAB - 20234PPSC - FOOD GRAIN SUPERVISOR (BS 09) Paper 2 - FOOD DEPARTMENT - 20232PPSC - FOOD GRAINS INSPECTOR (BS 12) 18J26J2022 (30/04/2023) - FOOD DEPARTMENT - 20234PPSC - FOOD GRAINS INSPECTOR (BS 12) 18J26J2022 (30/04/2023) - FOOD DEPARTMENT - 20231PPSC - Field Assistant - Agriculture Department - 20182PPSC - Field Assistant Crop Reporter - Agriculture Department - 20182PPSC - HEALTH EDUCATOR (BS 17) - PUNJAB DEPARTMENT - 20142PPSC - INSTRUCTOR (BS 17) - Management and Professional Development Department - 00001PPSC - Inspector (BS 16) - Cooperative Societies - 20242PPSC - Inspector (BS 16) - Youth Affairs2PPSC - Inspector - Anti Corruption Establishment - 20201PPSC - Inspector - Cooperative Societies Department Punjab - 20192PPSC - 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Revenue Department - 20194PPSC - Junior Clerk - S&GAD Punjab - 20181PPSC - Junior Clerk - S&GAD Punjab - 20193PPSC - Junior Clerk - Services and General Administration Department Punjab (S&GAD) - 20191PPSC - Labour Inspector (BS 14) - Labour & Human Resource Department - 20192PPSC - Labour Inspector - Labour & Human Resource Department - 20202PPSC - Labour Inspector - Labour and Human Resource Department - 20184PPSC - Labour Officer - Labour & Human Resource Department - 20201PPSC - Labour Officer - Labour and Human Resource Department - 20184PPSC - Lecturer Computer Science IT (BS 17) - Higher Education Department Punjab - 20171PPSC - Lecturer Computer Science IT - Higher Education Department Punjab - 20173PPSC - Lecturer English (Male) 9 Jun 2024 - Higher Education Department - 20242PPSC - Lecturer History (Male) - Higher Education Department - 20213PPSC - Manager (20M2020) - AUQAF - 20201PPSC - Monitoring & Evaluation Assistant / Field Coordinator - Punjab Employees Social Security Institution - 20191PPSC - NAIB TEHSILDAR (ENGLISH) (BS 14) - REVENUE DEPARTMENT PUNJAB - 20223PPSC - NAIB TEHSILDAR (GENERAL KNOWLEDGE) (BS 14) - REVENUE DEPARTMENT PUNJAB - 20222PPSC - PMS - PPSC - 202425PPSC - PMS GK - 2020 MCQs1PPSC - PMS General Knowledge - S&GAD - 20191PPSC - PMS General Knowledge - S&GAD - 20201PPSC - PMS General Knowledge - S&GAD - 20224PPSC - PMS General Knowledge - S&GAD - 20191PPSC - PMS General Knowledge - S&GAD - 20222PPSC - Past Papers - Most Repeated1PPSC - Personal Assistant & Assistant (BPS 16) - S&GAD - 20203PPSC - Personal Staff Officer (BS 17) - S&GAD - 20202PPSC - Planning Officer /Deputy District Officer (Planning) - Planning & Development - 20143PPSC - Provincial Management Service (PMS) - S&GAD - 20185PPSC - Provincial Management Service PMS (Ministerial Quota) - S&GAD - 20192PPSC - Service Center Official - Punjab Land Record Authority - 20182PPSC - Service Center Officials (BPS 11) - Punjab Land Record Authority - 20202PPSC - Social Security Officer – (PESSI) Labour and Human Resource Department - 20182PPSC - Sub Inspector (BS-14) - Transport - 20192PPSC - Sub Inspector (Open Merit) - Punjab Police - 20221PPSC - Sub Inspector (Service Quota) - Punjab Police - 20192PPSC - Sub Inspector - Cooperative Societies Punjab - 20182PPSC - Sub Inspector - Punjab Police - 20192PPSC - Tehsildar Consolidation Officer/Hill Torrent Officer /Reader to members Board of Revenue (BS 16) - Revenue Department - 20201PPSC - ZILADAR (14 19G2020) - Irrigation Department - 20201PPSC - ZILADAR (Research/DLR Zone) 14.20G2020 - Irrigation Department - 20203Punjab held on 13-07-2024 (2024)2SPSC - Assistant Director (BS 17) - Education Department Sindh - 20231Sports2Sports Archaeology & Tourism Department - 20192Sub Divisional Officer (2024)1Sub Inspector (BS-14) Held on 19-10-2025 (2025)1System Administrator 202657