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Nomenclature and Classification Systems MCQs

Prepare for Nomenclature and Classification Systems MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Practice Questions

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390987 MCQs Page 158

Topic Notes: Biology

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Practice Biology MCQs to prepare for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests in Pakistan. This section covers key theoretical concepts, syllabus topics, and repeated past paper questions related to Biology.

Topic-Wise Breakdown
Structured subject modules organized by difficulty and exam frequency.
Verified Answer Keys
Detailed explanations cross-referenced with standard textbooks and commission keys.
Complete Coverage
Covers fundamental definitions, advanced problem-solving, and recent exam trends.

How to Prepare Biology MCQs for Competitive Exams

Review each sub-topic systematically. Start with fundamental concepts, practice multiple-choice question sets under timed conditions, and note down questions you missed in your revision tracker. Select a specific topic from the list below to begin practice.

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1571
Two trains of lengths 100m and 150m are running on parallel tracks in the same direction at 40 km/hr and 58 km/hr respectively. In how much time will the faster train pass the slower one?
1572
A train 200 meters long crosses a platform 300 meters long in 25 seconds. What is the speed of the train in km/hr?
1573
A train 150 meters long is running at a speed of 54 km/hr. How much time will it take to pass a telegraph pole?
1574
A cistern has two pipes. One can fill it in 12 minutes and the other can empty it in 15 minutes. How long will it take to fill the cistern if both are opened?
1575
Two pipes A and B can fill a tank in 24 and 32 minutes. If both are opened, when must B be closed to fill the tank in 18 minutes?
1576
An inlet pipe fills a tank in 5 hours, but due to a leak, it takes 6 hours. How long will the leak take to empty the full tank?
1577
Pipe A fills a tank in 20 minutes and Pipe B in 30 minutes. If both are opened, how long will it take to fill the tank?
1578
A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank?
1579
Two pipes A and B fill a tank in 15 and 20 hours. A third pipe C can empty it in 25 hours. If all are opened, how long to fill the tank?
1580
A cistern can be filled by two pipes A and B in 10 and 12 hours respectively. If they are opened at 8 AM and A is closed at 10 AM, when will the cistern be full?