🔬 General Science Solved MCQs with Answers

Practice 4010 approved 🔬 General Science questions with verified answers from the 🌐 Current Affairs & GK subject for Pakistan exams.

4010 solved MCQs

Which of the following is used as fuel for burning in nuclear reactors?Answer: Uranium Energy is a nuclear reaction is produced due toAnswer: Uncontrolled chain of reaction Which type of energy is produced during a fission reaction in a nuclear reactor?Answer: Thermal energy The amount of energy required to break nucleus is called its?Answer: Binding energy For producing fission in 92U₂₃₈, we need?Answer: Electron انسانی جسم کے کس عضو کے چار چیمبر ہوتے ہیںAnswer: دل خون کو کون سا عضو صاف کرتا ہےAnswer: پھپڑے دودھ میں پانی کی مقدارکتنے فیصد ہوتی ہےAnswer: 80% Which part of the brain is the seat of intelligence, memory association, imagination, and will?Answer: Cerebrum Which of the following alkali metal forms only normal oxide with O₂?Answer: Li The heat of sublimation of potassium is 98kJ/mol, the heat of dissociation of bromine gas is 192.5 kJ/mol. The ionization energy of K is 414 kJ/mol. The electron affinity of Br is -334.7 kJ/mol and the heat of formation of KBr is -405.8 kJ/mol. Calculate the lattice energy of KBrAnswer: -679.3 What is a cell?Answer: Smallest and basic unit of life What happens to calcium when skeletal muscles recover from contraction?Answer: Pumped into the sarcoplasmic reticulum In every instant of time, wavelength associated with a freely falling body:Answer: Decreases A wheel makes 3 complete revolutions. What is the total number of radians through which a point on wheel has rotated?Answer: 6π According to Lamarckism, the basis of evolution is:Answer: Inheritance of acquired characteristics The maximum power transfer theorem states that maximum power is delivered to the load whenAnswer: The load resistance is equal to the source resistance For longitudinal waves______Answer: The particles of the medium oscillate along the direction of the wave’s propagatio A lake starts freezing because of the cold atmosphere. It will first freezeAnswer: At the top surface Anaerobic are?Answer: Bacteria which can complete their life cycle without oxygen What is meant by meter per second?Answer: Velocity A social system in which there is little or no possibility of individual mobility?Answer: Closed system Unit Poise is the measurement of?Answer: Viscosity Ice block are covered with sawdust?Answer: To provide necessary insulation from heat The ligaments join?Answer: Bone to bone Approximately how many time each day do our heart valves open and close normally?Answer: 100000 Which of the following is not the inner ear? eustachian tube, cochlea, semicircular canals, sacculusAnswer: Eustachian tube In railway tracks, a small gap is left between the rails ?Answer: To allow for the expansion during heat Choose the one which best expresses the meaning of the given word: MIRTHAnswer: Merriment Respiratory center is situated in?Answer: Medulla oblongata