Online Test

Question: Two resistance of 3Ω and 6Ω respectively are connected to a battery of 18V in series. The current passing through the circuit is 1. 2A 2. 3A 3. 6A 4. 9A Answer: 1 Question: When the length of a pendulum in a clock is increased, then 1. The period increases...

Question: Transistors used in electronic equipments are mostly made of 1. Silver 2. Copper 3. Silicon 4. Carbon Answer: 3 Question: Which of the following is a unit of angle measurement? 1. Hour 2. Second 3. Millimeter 4. None of these Answer: 2 Question: Find the...

Question: Pulley in a belt drive acts as - 1. Cylindrical pair 2. Turning pair 3. Rolling pair 4. Sliding pair Answer: 1 Question: Minority carrier in P-type semiconductor is - 1. Free electrons 2. Free holes 3. Holes and electrons both 4. Holes minus electrons...

Question: What are Ferrites? 1. Magnetic but have low resistance 2. Magnetic but have high resistance 3. Non-magnetic with low resistance 4. Non-magnetic with high resistance Answer: 2 Question: An electronics circuits in which different components such as Diode,...

Question: The information is sent by CW transmitter by - 1. Changing the audio frequency 2. Interrupting radio signal 3. Using microphone 4. Using camera Answer: 1 Question: If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder...

Question: Hydrogen has the tendency to gain one electron to acquire helium configuration. In this tendency, it resembles 1. Alkali metals 2. Inert gases 3. Alkaline earth metals 4. Halogens Answer: 4 Question: The ore of aluminium metal is 1. Cuprite 2. Galena 3....

Question: Moving electric charge produces: 1. heat waves 2. magnetic field 3. light rays 4. sound waves Answer: 2 Question: The blue colour of the water in the sea is due to 1. Refraction of the blue light by the impurities in sea water. 2. Reflection of blue sky by...

Question: Suppose you are standing 1 m in front of a plane mirror. What should be the minimum vertical size of the mirror so that you can see your full image in it? 1. twice your height 2. 2m 3. 0.50 m 4. half of your height Answer: 4 Question: The material used for...

Question: A student heated some sulphur in a spatula and collected the gas 'X'. Which one among the following is correct about 'X'? 1. X is SO2 and it turns moist litmus to red 2. X is SO3 and it turns dry litmus to blue 3. X is SO3 and it turns moist litmus to red 4....

Question: The Phillips Curve shows the relation between - 1. Income and price level 2. Income and investment 3. Inflation and unemployment 4. Income and consumption Answer: 2 Question: Which metal is extracted from sea water? 1. Magnesium 2. Potassium 3. Beryllium 4....

Question: When a light wave is reflected from a mirrior, there is a change in its 1. velocity 2. frequency 3. wavelength 4. amplitude Answer: 4 Question: In AC circuits, AC meters measure 1. mean values 2. peak values 3. mean square values 4. rms values Answer: 4...

Question: Which one among the following statements is correct? 1. Concave mirrors are used as reflectors 2. Convex mirrors are used by doctors to examine oral cavity 3. Convex mirrors are used as reflectors 4. Convex mirrors should be used as shaving Answer: 1...

Question: The focal length of a convex lens is 1. shorter for blue light than for red 2. the same for all colours 3. shorter for red light than for blue 4. maximum for yellow light Answer: 1 Question: When a ball drops on to the floor it bounces. Why does it bounce?...

Question: A fluorescent tube contains 1. Argon 2. Nitrogen 3. Neon 4. Oxygen Answer: 3 Question: The feeding of a job in planner is done by 1. Table movement 2. Tool movement 3. Ram movement 4. Movement of a clapper box Answer: 4 Question: Which of the following...

Question: A mobile phone charger is - 1. an inverter 2. a UPS 3. a step-down transformer 4. a step-up transformer Answer: 3 Question: ___ is an instrument used to measure electric current. 1. Voltameter 2. Galvanometer 3. Durometer 4. Dosimeter Answer: 2 Question:...

Question: Speed of sound is maximum in: 1. Gas 2. Same in all cases 3. Liquid 4. Solid Answer: 4 Question: Newton is a unit of: 1. Force 2. Acceleration 3. Work 4. Energy Answer: 1 Question: The mass of a body at the centre of earth is: 1. Zero 2. Remains constant 3....

Question: There are four statements gives below explaining why mercury is chosen as a thermometric liquid. which of these statements is wrong? 1. Volume of mercury increases equally for equal rises of temperature 2. Mercury is a good conductor of heat 3. Mercury does...

Question: Ultrasonic waves are those sound waves having frequency 1. between 20 hertz and 1000 hertz 2. between 1000 hertz and 20000 hertz 3. less than 20 hertz 4. more than 20 kilohertz Answer: 4 Question: The best colours for a Sun umbrella will be - 1. white on top...

Question: Confirmation of the presence of Higgs boson will justify - 1. Both the standard model and superstring theory 2. The unification of all the four fundamental forces 3. The steady-states model of the universe 4. The mass of the fundamental particles Answer: 4...

Question: In summer, sometimes the bicycle tube bursts because inside the tube 1. Weight of the air increases 2. Pressure of the air increases 3. Pressure of the air decreases 4. Volume of the air decreases Answer: 2 Question: The clear sky looks blue because of 1....

Question: Fathom is the unit of marine depth. One Fathom is equal to 1. 5 feet 2. 7 feet 3. 10 feet 4. 6 feet Answer: 4 Question: In which metal corrosion takes place soon? 1. Iron 2. Copper 3. Gold 4. Brass Answer: 1 Question: Radio telescopes are better than optical...

Question: A GM counter is used for detecting - 1. Underground oil 2. Coal 3. Radioactivity 4. Mehane gas Answer: 3 Question: Which of the following statements in Not correct regarding the Ultra-violet rays? 1. It is a class of electromagnetic waves of various...

Question: Standing in front of a special mirror, a man finds his image small head and body but legs of actual size. The shapes of mirror parts are - 1. Concave and plane 2. Concave and convex 3. Convex and plane 4. Plane and convex Answer: 1 Question: The ultimate...

Question: A particle is moving freely. Then its 1. Kinetic energy is always greater than zero 2. Potential energy is greater than zero and kinetic energy is less than zero 3. Potential energy is less than zero and kinetic energy is greater than zero 4. Potential...

Question: Ohm's law defines 1. a resistance 2. current only 3. voltage only 4. both current and voltage Answer: 2 Question: A car is moving with a uniform speed. However its momentum is changing. Then the car 1. may be on an elliptical path 2. is moving on a straight...

Question: The sound of explosion in a distant star is not heart from the Earth because 1. The frequency of sound produced is below 10 Hz 2. The frequency of sound produced is above 100 Hz 3. There is no continuous medium from the star to Earth 4. The distance of the...

Question: A person climbing a hill bends forward in order to - 1. Avoid slipping 2. Increase speed 3. Reduce fatigue 4. Increase stability Answer: 4 Question: Conservation of energy means that - 1. Energy can be created as well as destroyed 2. Energy can be created,...

Question: The freezing point of fresh water is - 1. 0°C 2. 4°C 3. 3°C 4. 5°C Answer: 1 Question: Flywheel is an important part of a steam engine because it - 1. gives strength to the engine 2. accelerates the speed of the engine 3. helps the engine in keeping the...