Sakil Ahmed Classes

HSLC EXAM QUESTIONS – ELECTRICITY MCQ & Very Short Questions (1 Mark Each) Answers are provided after each question. 1. The unit of specific resistance of a material in S.I. system is (a) Ω  (b) Ωm  (c) Ωm⁻¹  (d) Ωm² ✅ Answer: (b) Ωm 2. A piece of wire of resistance 2 Ω is cut into four equal parts. These are connected in parallel. If R is the equivalent resistance, then (a) 16  (b) 1/16  (c) 1/8  (d) 8 ✅ Answer: (b) 1/16 Ω 3. Two wires have lengths, resistances and resistivities in the ratio 1 : 2. What is the ratio of diameters? (a) 1 : 2  (b) 1 : 4  (c) 4 : 1  (d) 1 : √2 ✅ Answer: (d) 1 : √2 4. Which of the following does NOT represent electrical power? (i) IR²  (ii) I²R  (iii) V²/R  (iv) VI Options: (a) IR² only  (b) I²R  (c) V²/R  (d) VI ✅ Answer: (a) IR² (This is incorrect dimensionally.) 5. The SI unit of electric charge is (a) coulomb  (b) volt  (c) watt  (d) joule ✅ Answer: (a) coulomb 6. Which of the following is used to measure potential differ...

  A. MCQ & Very Short Questions: Mark: 1 Q1. It can be defined as a programming model which is based upon the concept of calling procedure. What is it called? Answer: It is called Procedure Oriented Programming (POP) . [HSLC ’24] B. Short Type Questions: Marks: 2/3 Q1. What do you mean by library function? Is sum() a library function? Justify. Answer: A library function is a pre-defined function available in the C library which can be directly used in a program, such as printf() , scanf() , sqrt() , etc. They are stored in header files like <stdio.h> , <math.h> . sum() is not a library function because it is not part of the standard C library; it has to be created by the programmer. Hence, sum() is a user-defined function , not a library function. [HSLC ’23] Q2. What is group function? Explain with an example. Answer: A group function is a function that performs an operation on a group of values and gives a single result. 👉 Example: In dat...

  Chapter – 3 Geography of the World HSLC Exam Questions A. MCQ & Very Short Questions (Mark: 1) Q1. The land area of the continent of Asia is: [HSLC '13] (a) 64.2 million Km² (b) 24.2 million Km² (c) 44.2 million Km² ✅ (d) 54.2 million Km² Answer: (c) 44.2 million Km² Q2. One of the major rivers of Asia flowing into the Arctic Ocean is: [HSLC '16] (a) Ural (b) Yenisey ✅ (c) Mekong (d) Howang-Ho Answer: (b) Yenisey Q3. Which sea has separated the continents Asia and Africa? [HSLC '17] (a) Mediterranean Sea (b) Red Sea ✅ (c) Caspian Sea (d) Arabian Sea Answer: (b) Red Sea Q4. The longest mountain range in the world is: [HSLC '19] (i) The Himalayan Mountain Range (ii) The Andes Folded Mountain Range ✅ (iii) The Rocky Mountain Range (iv) The Ural Mountain Range Answer: (ii) The Andes Folded Mountain Range Q5. Physically, the continent of Europe is separated from Asia by the: [HSLC '18] (a) Karakoram Mountain Range...