1 Which type of pump is usually used to pump water from wells? a) Booster pumps b) Submersible turbine pumps c) Progressive cavity pumps d) Reciprocating pumps 2 What do you call the passing of energy from molecule to molecule through a substance? a) Conduction b) Convection c) Conservation d) Radiation 3 What is the purpose of a pump mechanical seal? a) Keep leakage off slipperry floors b) Prevent leakage between the pump casing and shaft c) seal water to maintain prime pump d) provide an effective backflow prevention device 4 What is the primary purpose of priming a pump? a) Ensure the pump operates freely c) Prevent backflow b) Fill the volute with water d) avoid water flow along the seal 5 It is when the substance moves because of the decrease in its density which is caused by increase in temperature a) Forced conduction b) Heat transfer c) Conduction through fan d) Free convection 6 The component of a centrifugal pump sometimes installed on the end of the suction pipe is called a) throttle valve b) foot valve c) impeller d) check valve 8 Any device which affects the transfer of heat from one substance to another a) heating coils b) boiler tubes c) heat exchanger d) radiation device 9 It is the mechanism of heat transfer whereby heat energy is transferred by moving fluids a) steam jacketed kettles b) mechanical heat transfer c) carnot cycle d) convection 10 It is the gaseous form of water 11 Water boils at degree F under normal atmospheric conditions.