SSC-JUNIOR ENGINEER (Civil & Structural) Online Exam 2017 (Part-II)Total Questions: 5031. Which among the following is used to transmit data in optical fibre?A. VibrationsB. LightC. SoundD. Electrical currentCorrect Answer: B. LightSolution:No explanation given in the book32. Which of the following statement(s) is/are CORRECT with respect to BIOS?I. It is a set of computer instructions in firmware.II. It controls input and output operations.III. Full form of BIOS is basic input-output system.A. Only I and IIB. Only I and IIIC. Only II and IIID. All statements are correct.Correct Answer: D. All statements are correct.Solution:No explanation given in the book33. What is the chemical formula of baking soda?A. Na₂CO₃.10H₂OB. Na₂CO₃C. NaHCO₃D. NaOHCorrect Answer: C. NaHCO₃Solution:No explanation given in the book34. Which of the following metal is most reactive?A. PotassiumB. CalciumC. SodiumD. ZincCorrect Answer: A. PotassiumSolution:No explanation given in the book35. Which of the following can be defined as the smallest particle of an element that is capable of an independent existence?A. ElectronB. ProtonC. NeutronD. MoleculeCorrect Answer: D. MoleculeSolution:No explanation given in the book36. In Modern Periodic Table, the atomic radius increases _________.A. while moving from left to right in a periodB. while moving from right to left in a periodC. while moving from top to bottom in a groupD. No option is correct.Correct Answer: B. while moving from right to left in a periodSolution:No explanation given in the book37. In science, a push or a pull on an object is called as ________.A. pressureB. gravitationC. forceD. frictionCorrect Answer: C. forceSolution:No explanation given in the book38. When two resistors are connected in parallel, they have _______.A. same currentB. same potential differenceC. different potential differenceD. Both same current and different potential differenceCorrect Answer: B. same potential differenceSolution:No explanation given in the book39. What precaution should be taken to avoid the overloading of domestic electric circuits?A. Fuse should be connected in the circuit.B. Too many appliances should not be connected in single circuit.C. Faulty appliances should not be connected in the circuit.D. All options are correct.Correct Answer: D. All options are correct.Solution:No explanation given in the book40. Dioptre is unit of _______.A. Power of lensB. Focal length of lensC. Intensity of lightD. Intensity of soundCorrect Answer: A. Power of lensSolution:No explanation given in the bookSubmit Quiz« Previous12345Next »