Basic Science MCQ 1 5%Question 1 of 201. Hydroscope is an instrument that used to __________.see objects under the water atmospheric humidity density of liquid sound under water None of theseQuestion 1 of 20Question 2 of 202. Bernoulli theorem is applicable to _____?Mass Momentum Energy All of the above None of theseQuestion 2 of 20Question 3 of 203. A piece of wood is float above water then up thrust on it will be ____________.equal to the weight of the wood less than weight of the wood more than weight of the wood Zero None of theseQuestion 3 of 20Question 4 of 204. What is the unit of the physical quantity "Inductance"?weber farad henry tesla None of theseQuestion 4 of 20Question 5 of 205. Which of the following is not a property of heavy water?Boiling point of heavy water is lower than that or ordinary water Density of heavy water is more than that of ordinary water Freezing point of heavy water is more than that of ordinary water It produces corrosion None of theseQuestion 5 of 20Question 6 of 206. Human saliva contains an enzyme called "salivary amylase" that breaks down starch to give sugar. It is present in the mouth. There is another area which uses this enzyme. Which of the following is it?Small Intestine Liver Large intestines Pancreas None of theseQuestion 6 of 20Question 7 of 207. Which of the following is/are true about blood pressure in the human body? I. This pressure is much greater in arteries than in veins. II. The pressure of blood during contraction is called diastolic pressure. III. The normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg.Only III Only I and III Only II Only I Only I and IIQuestion 7 of 20Question 8 of 208. Which of the following statements is/are correct? I. In vertebrates, blood flows twice through the heart in each cycle. II. Amphibians and many reptiles have three-chambered hearts. III. Fishes have only two chambers to their hearts. Only II Only I Only III Only I and II All of the aboveQuestion 8 of 20Question 9 of 209. Blood Pressure in humans is measured using theSphygmomanometer Thermometer Anemometer Anapestic meter None of the aboveQuestion 9 of 20Question 10 of 2010. Which of the following is/are true about the human heart? I. The heart has valves to ensure blood does not flow backwards when the atria or ventricles contract. II. Oxygen-rich blood from the lungs enters the heart via the right atrium. III. Ventricles have thicker muscular walls than the atria.Only I Only II Only I and III Only I and II None of theseQuestion 10 of 20Question 11 of 2011. Which of the following is/are true about the functions of blood in human body? I. It consists of a fluid medium called plasma which transports oxygen. II. It contains red blood cells which transports food, carbon dioxide and nitrogenous wastes. III. Blood makes up around 7% of the weight of a human body.Only III Only I and II Only II and III Only I None of theseQuestion 11 of 20Question 12 of 2012. The long, slender projection of a nerve cell that conducts electrical impulses (carrying information) away from the nerve cell body and transmits this information to different neurons, muscles, and glands is known as:Myelin Axon Schwann All of the above None of the aboveQuestion 12 of 20Question 13 of 2013. The ending of a nerve cell used to acquire information from our environment is calledNucleus Nerve ending Dendrite Axon None of theseQuestion 13 of 20Question 14 of 2014. Receptors used to detect taste are known asGustatory receptors Olfactory receptors Nerve cell receptors All of the above None of theseQuestion 14 of 20Question 15 of 2015. Pyorrhea is a disease of theDigestive system Gums Liver Pancreas None of theseQuestion 15 of 20Question 16 of 2016. How many millimeters make ten kilometers?\( 10^1 \) \( 10^9 \) \( 10^8 \) \( 10^7 \) None of theseQuestion 16 of 20Question 17 of 2017. Which one of the following substances is used in the preservation of food stuff?Citric Acid Potassium Chloride Sodium Benzoate Sodium Chloride None of theseQuestion 17 of 20Question 18 of 2018. Optical fiber works on the principle ofTotal internal reflection Refraction Scattering Interference None of theseQuestion 18 of 20Question 19 of 2019. The term LASER stands forLight Amplification by Stimulated Emission of Radiation Light Amplification by Spontaneous Emission of Radiation Light Amplification by Stimulated Emission of Rays Light Amplification by Stimulated Energy of Radiation None of theseQuestion 19 of 20Question 20 of 2020. A Refrigerator works on which of the following principles?Osmosis Centrifugation Dispersion Evaporation None of the aboveQuestion 20 of 20 Loading...