Top 100 Important Everyday Science Mcqs Set-8 81- The dress made out of which of the following materials is safe to wear while cooking? A. SilkB. CottonC. NylonD. Terylene View Answer Answer : B. Cotton Description 82- Tiredness is felt on the top of the mountains because of: A. High temperature B. Low temperature C. High pressure outside the bodyD. Low pressure outside the body View Answer Answer : D. Low pressure outside the body Description 83- The wet camel hair, when brushed, clings together due to: A. ElasticityB. ViscosityC. AdhesionD. Surface tension View Answer Answer : D. Surface tension Description 84- Which vitamin is essential for blood clotting? A. Vitamin AB. Vitamin B12C. Vitamin ED. Vitamin K View Answer Answer : D. Vitamin K Description 85- Cooking is quicker in a pressure cooker because: A. Of the penetrating action of steam B. It increases the temperature of the contents C. The whole of heat remains inside D. It increases boiling point of water View Answer Answer : D. It increases boiling point of water Description 86- The water in an open pond remains cool even in hot summer because: A. Of continuous evaporation of waterB. Water radiates heat more rapidly than the atmosphere C. Water absorbs heat less rapidly than the atmosphere D. None of these View Answer Answer : A. Of continuous evaporation of water Description 87- Distribution of electric power from one place to another is done at high AC voltage because: A. Wastage of electricity is minimizedB. Stealing of electric wires is prevented C. Electricity spreads in very short timeD. It adds brightness View Answer Answer : A. Wastage of electricity is minimized Description 88- The process of changing a liquid into gas is called: A. EvaporationB. CondensationC. SublimationD. Precipitation View Answer Answer : A. Evaporation Description 89- Nights are cooler in the deserts because: A. Sand radiates heat less quickly as compared to earthB. The sky is generally clear C. Sand radiates heat more quickly as compared to earthD. The sky is generally cloudy View Answer Answer : C. Sand radiates heat more quickly as compared to earth Description 90- Which organ in the human body filters waste from the blood? A. HeartB. LungsC. LiverD. Kidney View Answer Answer : D. Kidney Description 91- Water pipes are apt to burst in cold weather because: A. They contract in cold B. Heavy pressure is exerted by snow C. The water in the pipe turns into ice and expandsD. The water in the pipe cannot evaporate View Answer Answer : C. The water in the pipe turns into ice and expands Description 92- Clothes keep us warm in winter because they: A. Supply heat B. Do not radiate heat C. Prevent air to enter D. Prevent the heat of the body from escaping View Answer Answer : D. Prevent the heat of the body from escaping Description 93- Cooking gas cylinders placed on the top floor cause more fire hazard on leakage to the lower floors because LPG (Liquefied Petroleum Gas) is: A. Lighter than airB. Heavier than air C. Carried away by the blasted pieces D. Attracted by the flame View Answer Answer : A. Lighter than air Description 94- Water stored in ordinary earthen pots is cooler because: A. Air passes through its pores and cools the waterB. The pots constantly radiate heat cooling the water C. The material of the pots has low specific heat D. Water passes out through the pores and evaporates View Answer Answer : D. Water passes out through the pores and evaporates Description 95- Small liquid drops are spherical in shape because: A. Of adhesion B. Of gravitational force C. Of the atmospheric pressure from all sides on the drop D. The liquid tends to have minimum surface area due to surface tension View Answer Answer : D. The liquid tends to have minimum surface area due to surface tension Description 96- Why is a cyclist required to bend inwards while moving in a circular path? A. To keep the vehicle on the road B. To make the center of gravity fall within the baseC. To produce the necessary centripetal force required to keep him moving in a curved pathD. None of these View Answer Answer : C. To produce the necessary centripetal force required to keep him moving in a curved path Description 97- Pouring of kerosene oil on stagnant water reduces mosquito production because: A. It is highly toxic to the mosquitoes B. It interrupts the mating of adults C. It repels the mosquitoes D. It interrupts the breathing of larvae View Answer Answer : D. It interrupts the breathing of larvae Description 98- Pressure cooker is fast in cooking rice because: A. It lets the steam escape B. It does not let the heat energy escape easily C. High pressure raises the boiling point of waterD. High pressure crushes the hard covering of rice grains View Answer Answer : C. High pressure raises the boiling point of water Description 99- The tube light is felt cooler than the light from a bulb of the same wattage because the: A. Tube is fixed at a greater height than the bulb B. Surface area of tube is larger than that of a bulbC. Tungsten is not used in the bulb D. Tube consumes less power View Answer Answer : B. Surface area of tube is larger than that of a bulb Description 100- Sodium thiosulphate is used in photography because: A. It reacts with light B. It helps in fixing the photographC. It is an oxidizing agent D. It is a reducing agent View Answer Answer : B. It helps in fixing the photograph Description 1 2 3 4 5
