Which of the following is not a first order instrument?
A.U-tube type mercury manometer
B.Bimetallic thermometer (bare)
C.Vapour pressure thermometer (bare)
D.Ordinary mercury-in-glass thermometer (without avy covering or air gap).
A.U-tube type mercury manometer
B.Bimetallic thermometer (bare)
C.Vapour pressure thermometer (bare)
D.Ordinary mercury-in-glass thermometer (without avy covering or air gap).
A.nitrogen
B.hydrogen sulphide
C.methane
D.carbon monoxide
A.anhydrous ammonia and air
B.air and water
C.air and steam
D.anhydrous ammonia and water
A.10-10 cm
B.10-8 cm
C.10-14 cm
D.10-12 cm
A.n = 0
B.n < 1
C.n > 1
D.n = 1
A.Insulated pipes carrying hot water
B.Refrigerator freezer coils
C.Melting of ice
D.Boiler furnaces
E.Condensation of steam in a condenser
A.Alloys containing copper may be white
B.A soft metal may be hardened by alloying it with another metal or non-metal
C.Silver-plated copper articles contain an alloy of copper and silver
D.Alloys containing carbon are grey or black
A.as an additive and antiknock supplement compound for petrol
B.in extraction of uranium plutonium and thorium nitrates
C.in nuclear reactor fuel reprocessing
D.as fertilizer
A.Water
B.Mercury
C.Ethly alcohol
D.Carbon tetrachloride