Q. At which place Earth's magnetic field becomes horizontal?
1) Magnetic meridian
2) Magnetic equator
3) Geographical pole
4) Tropic of Cancer
Q. A Kelvin thermometer and a Fahrenheit thermometer both given the same reading for a certain sample. What would be the corresponding reading in a Celsius thermometer?
1) 574.25
2) 301
3) 273
4) 232
Q. Why is it difficult to measure the coefficient of expansion of a liquid than solid?
1) Liquids tend to evaporate at all temperatures
2) Liquids conduct more heat
3) Liquids expand too much when heated
4) Their containers also expand when heated
Q. An inductor stores energy in -
1) electrostatic field
2) electromagnetic field
3) core
4) magnetic field
Q. Liquid crystal material is used in -
1) Ultrasonic amplification and display devices
2) Display devices and thermal
3) Thermal sensors and transducers
4) Transducers and ultrasonic amplification
Q. Which material may also be considered a semiconductor element?
1) Carbon
2) Argon
3) Ceramic
4) Mica
Q. An accurate ammeter must have a resistance of -
1) high value
2) very high value
3) low value
4) very low value
Q. Utrasonic amplification through electron-photon interaction is generally achieved using a -
1) Supreconductor
2) Piezoelectric material
3) Paramagnetic material
4) Elemental semiconductor
Q. The temperature coefficient of resistance of an insulator is -
1) Negative and independent to temperature
2) Negative and dependent on temperature
3) Positive and dependent on temperature
4) Positive and independent of temperature
Q. An ammeter is a -
1) recording instrument
2) integrating instrument
3) absolute instrument
4) secondary instrument
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