nickel and copper

nickel and chromium

nickel , chromium and iron

copper and chromium

same

less

more

none of the above

Babbitt metal

Monel metal

Nichrome

phosphor bronze

Uranium

Thorium

Niobium

all of these

are formed into shape under heat and pressure and results in a permanently hard product

do not become hard with the application of heat and pressure and so chemical change occurs

are flexible and can withstand considerable wear under suitable conditions

are used as a friction lining for clutches and brakes