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. Aluminium
Answer: 1
Question: The freezer in a refrigerator is fitted near the top
1. it facilities convection currents
2. to keep it away from hot compressor which is nearer to the bottom
3. because of convenience
4. to minimize power consumption
Answer: 1
Question: The swing of a spinning cricket ball in air can be explained on the basis of
1. Turbulence caused by wind
2. sudden change in wind direction.
3. Buoyancy of air.
4. Bernoulli’s theorem.
Answer: 1
Question: When a person walking in bright sunlight enters a dark room, he is not able to see clearly for a little while because
1. the retina retains the bright images for sometimes and becomes momentarily insensitive.
2. the eye muscles cannot immediately adjust the focal length of the eye lens.
3. the iris is unable to dilate the pupil immediately
4. the iris is unable to contract the pupil immediately
Answer: 1
Question: Which of the following is most elastic?
1. Wet clay
2. steel
3. Plastic
4. Rubber
Answer: 2
Question: Which of the statements about glass are correct? 1. glass is a super-cooled liquid having infinite viscosity 2. violet coloured glass is obtained by adding MnO2 3. glass is a man-made silicate 4. glass is a crystalline substance select the correct answer using the code given below:
1. 1,2 and 3
2. 1,2 and 4
3. 2, 3 and 4
4. 1 and 3 only
Answer: 1
Question: Which one among the following methods is not affective in removing arsenic from contaminated ground water?
1. Reverse osmosis
2. Boiling
3. Ion exchange
4. coagulation-adsorption
Answer: 2
Question: Which of the following statements about diamond are correct? 1. It is used as a gem in jewellery because of its ability to reflect light 2. It is a good conductor of electricity 3. It is used for cutting glass, marble stones and other hard materials 4. It is used for drilling of rocks select the correct answer using the code given below:
1. 2 and 4 only
2. 1, 2 and 3
3. 2, 3 and 4
4. 1,3 and 4
Answer: 4
Question: Which of the statements given below is/are correct? Permanent hardness of water is due to the presence of soluble: 1. chloride of calcium 2. bicarbonate of calcium 3. sulphate of magnesium 4. bicarbonate of magnesium select the correct answer using the code given below:
1. 1 and 3 only
2. 1, 2and 3
3. 2 and 4
4. 1 only
Answer: 1
Question: Silver ware turns black after a period of time due to formation of:
1. nitrate coating on silver
2. oxide coating on silver
3. chloride coating on silver
4. sulphide coating on silver
Answer: 4