GMJ 6035 Scientific Principles Quiz

THE TERM D.C. STANDS FOR WHICH ONE OF THE FOLLOWING WHEN REFERRING TO ELECTRICAL SUPPLY

• DIRECT CURRENT

• DISPLAY CURRENT

• DESIGN CURRENT

• DIVERTER CURRENT

A DOMESTIC AC SUPPLY IS PROVIDED BY WHICH OF THE FOLLOWING

• POWER STATION

• BATTERY

• PHOTO VOLTAIC

• ALTERNATOR

LARGE HEAVY VICTORIAN BATHS ARE USUALLY MANUFACTURED FROM WHICH MATERIAL

• COPPER

• LOW CARBON STEEL

• CAST IRON

• BRASS

DOMESTIC CENTRAL HEATING SYSTEMS ARE USUALLY INSTALLED USING WHICH MATERIALS?

• COPPER AND PLASTIC

• CAST IRON AND COPPER

• LOW CARBON STEEL AND BRASS

• PLASTIC AND LOW CARBON STEEL

FOR A SUBSTANCE TO FLOAT ON WATER, IT MUST HAVE A DENSITY FOR LESS THAN

• 0.5

• 1

• 5

• 7.0

THE STATEMENT “THE AMOUNT OF HEAT REQUIRED TO RAISE A KG OF A SUBSTANCE BY 1 DEGREE CELSIUS” REFERS TO WHICH OF THE FOLLOWING

• SPECIFIC HEAT CAPACITY

• RELATIVE DENSITY

• LATENT HEAT

• SENSIBLE HEAT

IN ORDER TO CALCULATE THE LINEAR EXPANSION OF A MATERIAL, THE COEFFICIENT MUST BE MULTIPLIED BY WHICH TWO VARIABLES

• ORIGINAL LENGTH AND TEMPERATURE RISE

• ORIGINAL TEMPERATURE AND SPECIFIC HEAT CAPACITY

• EXPANDED LENGTH AND RELATIVE DENSITY

• TEMPERATURE RISE AND DENSITY OF THE MATERIAL

WHICH ONE OF THE FOLLOWING SOLID MATERIALS IS A GOOD CONDUCTOR OF HEAT?

• MDF TIMBER

• COPPER

• POLYETHYLENE

• GLASS FIBRE

WHICH ONE OF THE FOLLOWING INDICATES THE TERM FOR LIQUID BEING DRAWN BETWEEN TWO ADJACENT SURFACES?

• CAPILLARITY

• REFLECTION

• CORROSION

• RADIATION

CAPILLARY ACTION CAN BE UTILISED IN WHICH ONE OF THE FOLLOWING PROCESSES?

• SOLDERING COPPER FITTINGS

• CRIMPED STEEL FITTINGS

• THREADING LCS PIPEWORK

• COMPRESSION COPPER FITTINGS