Q1562.Consider the following statements. 1. Teflon and Dacron are polymers. 2. Neoprene is synthetic rubber. 3. Polythene is polyethylene polymer. 4. Natural rubber is chloroprene. Which of the above statements are correct?
Correct answer: 1, 2 and 3
Q1563.It is more comfortable to wear white cloth in summer because
Correct answer: They reflect all the heat falling on them
Q1564.Mouse is
Correct answer: Input Device
Q1565.Radioactivity is measured by
Correct answer: Geiger Counter
Q1566.Lemon is citrus due to
Correct answer: Citric acid
Q1567.The most important function of perspiration is to
Correct answer: Regulate body temperature
Q1568.Which of the following is not an output device?
Correct answer: Mouse
Q1569.Match List-I with List-II and select the correct answer using the code given below the lists. List-I (Characteristic) (a) Zero mass (b) Fractional charge (c) Fractional spin (d) Integral spin List-II (Particle) 1. Positron 2. Neutrino 3. Quark 4. Photon Code (a) (b) (c) (d)
Correct answer: 2
Q1570.Which acid is used in lemons?
Correct answer: Citric acid
Q1571.Lightning can even burn a tree because it contains tremendous amount of
Correct answer: Electric energy
Q1572.Which of the following is not an output device?
Correct answer: Touch screen
Q1573.Which of the following is an example of chemical change?
Correct answer: Softening of vegetable when cooked
Q1574.The sensation of fatigue in the muscles after prolonged strenuous physical work is caused by
Correct answer: The accumulation of lactic acid
Q1575.A fan produces feeling of comfort during hot weather, because