Share Facebook Email Telegram WhatsApp Results #1. The process in which no heat enters or leaves the system is termed as? Isobaric Isobaric Adiabatic Adiabatic Isochoric Isochoric None None #2. Water is usual as coolant in the radiator of a car engine because it ? Has low boiling point Has low boiling point Has low density Has low density Has high specific heat Has high specific heat None None #3. Adding salt to vegetables takes less time to cook because? Boiling point of water increases Boiling point of water increases Boiling point of water decreases Boiling point of water decreases The secret heat of water evaporation increases The secret heat of water evaporation increases None None #4. What is the reason for clay buildings being colder in summer & hotter in winter than brick buildings? Raw soil is a bad driver Raw soil is a bad driver Raw soil is insulated Raw soil is insulated Raw soil is a good conductor Raw soil is a good conductor None None #5. At which temperature does the water boil on the hills? 100^0C 100^0C Below 1000^0C Below 1000^0C More than 100^0C More than 100^0C None None #6. Transfer of heat convection takes place in ? Solid & vacuum Solid & vacuum Solid & liquid Solid & liquid Gases & liquids Gases & liquids None None #7. Expansion during heating? Increases the weight of the material Increases the weight of the material Occurs only in solids Occurs only in solids Decreases the density of the material Decreases the density of the material None None #8. Which of the following substances has greatest specific heat? Water Water Copper Copper Iron Iron None None #9. Which is the fastest mode of heat loss? Conduction Conduction Radiation Radiation Convection Convection None None #10. Transfer of heat energy from a heater coil to the cooking vessel takes place through the process of ? Radiation & convection only Radiation & convection only Conduction & convection only Conduction & convection only Convection only Convection only None None Finish
