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Polished SURFACE promotes dropwise CONDENSATION and does not WET the surface.

Polished surface promotes dropwise condensation and does not wet the surface.

Temperature.

Temperature.

It SATISFIES EQUATION of state and its SPECIFIC heats are constant.

It satisfies equation of state and its specific heats are constant.

Because there is no HEAT TRANSFER in this PROCESS.

Because there is no heat transfer in this process.

It will DECREASE.

It will decrease.

ISOTHERMAL, isochoric, isobaric, FREE EXPRESSION, throttling and ADIABATIC processes respectively.

Isothermal, isochoric, isobaric, free expression, throttling and adiabatic processes respectively.

Scavenging is PROCESS of FLUSHING out BURNT gases from engine cylinder by introducing fresh air in the cylinder before exhaust stroke ends. Supercharging is the process of supplying HIGHER mass of air by compressing the ATMOSPHERIC air.

Scavenging is process of flushing out burnt gases from engine cylinder by introducing fresh air in the cylinder before exhaust stroke ends. Supercharging is the process of supplying higher mass of air by compressing the atmospheric air.

doubled.

doubled.

Smaller.

Smaller.

ENERGY REQUIRED to CAUSE FAILURE.

Energy required to cause failure.

I SECTION.

I section.

It will INCREASE.

It will increase.

VELOCITY, KINETIC ENERGY and MOMENTUM.

Velocity, kinetic energy and momentum.

He should incline the ROPE with horizontal at ANGLE of FRICTION between FLOOR and BLOCK.

He should incline the rope with horizontal at angle of friction between floor and block.

They BALANCE each other.

They balance each other.

When SUM of the RESOLVED PARTS in any two PERPENDICULAR DIRECTIONS is zero.

When sum of the resolved parts in any two perpendicular directions is zero.

When there is RELATIVE MOTION between them.

When there is relative motion between them.

While WORK can be COMPLETELY CONVERTED to HEAT, heat cannot be converted FULLY to work.

While work can be completely converted to heat, heat cannot be converted fully to work.

No. Same is TRUE for only REVERSIBLE PROCESS.

No. Same is true for only reversible process.

Exergy.

Exergy.

Pyrometer measures temperature by radiation PRINCIPLE. Pyranometer is USED to MEASURE TOTAL hemispherical solar radiation. Pyrheliometer is used to measure beam intensity by collimating the radiation.

Pyrometer measures temperature by radiation principle. Pyranometer is used to measure total hemispherical solar radiation. Pyrheliometer is used to measure beam intensity by collimating the radiation.

In ISENTROPIC process, heat transfer takes PLACE and in THROTTLING process, enthalpy before and after the process is same.

In isentropic process, heat transfer takes place and in throttling process, enthalpy before and after the process is same.

By USING THROTTLING CALORIMETER.

By using throttling calorimeter.

Balanced DRAFT refers to combination of FORCED and induced draft fans CONTROLLED to keep the furnace under slightly vacuum CONDITION.

Balanced draft refers to combination of forced and induced draft fans controlled to keep the furnace under slightly vacuum condition.

It is the AMOUNT of WATER that would be EVAPORATED from water at 100°C to steam at 100°C by the same amount of HEAT which was actually absorbed by water and steam under operating conditions.

It is the amount of water that would be evaporated from water at 100°C to steam at 100°C by the same amount of heat which was actually absorbed by water and steam under operating conditions.

Impurities in water are usually in finely divided state which takes long TIME to settle and these usually pass through the filtering media. By adding CERTAIN chemicals (coagulants), gelatinous substances are formed which cause small PARTICLES to coalesce into groups LARGE enough to be checked during filtering.

Impurities in water are usually in finely divided state which takes long time to settle and these usually pass through the filtering media. By adding certain chemicals (coagulants), gelatinous substances are formed which cause small particles to coalesce into groups large enough to be checked during filtering.

ROTATION of turbine rotor is CAUSED by centrifugal force created due to CHANGE of direction of FAST FLOWING jet of steam.

Rotation of turbine rotor is caused by centrifugal force created due to change of direction of fast flowing jet of steam.

Microbial means has a number of advantages over other methods. THIOBACILLUS ferrooxidans is the most widely used micro organism studied for coal desulphurisation. This BACTERIA can REMOVE 90-98% of pyritic sulphur from coal. The reaction, of course, is SLOW and may TAKE several days to several weeks to complete the reaction.

Microbial means has a number of advantages over other methods. Thiobacillus ferrooxidans is the most widely used micro organism studied for coal desulphurisation. This bacteria can remove 90-98% of pyritic sulphur from coal. The reaction, of course, is slow and may take several days to several weeks to complete the reaction.

Sulphur in coal gives rise to number of ecological problems ranging from acid MINE drainage to ASH waste problems and AIR pollution due to SO2 emission. Emission of S02 is the CAUSE of acid rain and is responsible for severe environmental damage.

Sulphur in coal gives rise to number of ecological problems ranging from acid mine drainage to ash waste problems and air pollution due to SO2 emission. Emission of S02 is the cause of acid rain and is responsible for severe environmental damage.

FIN efficiency is DEFINED as the ratio of the mean TEMPERATURE difference from surface to fluid DIVIDED by the temperature difference from fin to fluid at the base or root of the fin.

Fin efficiency is defined as the ratio of the mean temperature difference from surface to fluid divided by the temperature difference from fin to fluid at the base or root of the fin.

When the EMISSIVITY of material does not change with temperature, it is CALLED gray body.

When the emissivity of material does not change with temperature, it is called gray body.

Emissivity of a BODY is the RATIO of the emitted RADIANT ENERGY flux density to the emitted radiant energy flux density of a blackbody at the same temperature.

Emissivity of a body is the ratio of the emitted radiant energy flux density to the emitted radiant energy flux density of a blackbody at the same temperature.

Speed

Speed

It will be maximum when VEHICLE speed APPROACHES the relative velocity of GASES at nozzle EXIT.

It will be maximum when vehicle speed approaches the relative velocity of gases at nozzle exit.

4 stroke CI engine has highest brake thermal EFFICIENCY FOLLOWED by 4 stroke SI engine and the 2 stroke SI has lowest brake thermal efficiency.

4 stroke CI engine has highest brake thermal efficiency followed by 4 stroke SI engine and the 2 stroke SI has lowest brake thermal efficiency.

ALCOHOL has low cetane number and THUS its ignition is prevented by COMPRESSION.

Alcohol has low cetane number and thus its ignition is prevented by compression.

When the shear stress is DIRECTLY proportional to VELOCITY gradient.

When the shear stress is directly proportional to velocity gradient.

Jet pumps are EASY to maintain and can be USED to TRANSPORT gases, liquids and mixtures of both.

Jet pumps are easy to maintain and can be used to transport gases, liquids and mixtures of both.

DEAERATION PROCESS.

Deaeration process.

Compressibility EFFECTS USUALLY become significant at gas flow velocities greater than 0.5 times the VELOCITY of sound.

Compressibility effects usually become significant at gas flow velocities greater than 0.5 times the velocity of sound.

It is the RATE at which RADIATION LEAVES a SURFACE.

It is the rate at which radiation leaves a surface.

LOGARITHMIC and HYPERBOLIC.

Logarithmic and hyperbolic.

RATEAU and CURTIS RESPECTIVELY.

Rateau and Curtis respectively.

10, 12.5 and 16 RESPECTIVELY.

10, 12.5 and 16 respectively.

These CHARACTERISTICS affect SI engines in cold STARTING, ICING of carburettor and DILUTION in crankcase respectively.

These characteristics affect SI engines in cold starting, icing of carburettor and dilution in crankcase respectively.

Wilson LINE represents saturation line on the Mollier DIAGRAM. Willans line is connected with DETERMINATION of FRICTIONAL power in IC engines.

Wilson line represents saturation line on the Mollier diagram. Willans line is connected with determination of frictional power in IC engines.

BRAYTON CYCLE, and Bell-Coleman cycle.

Brayton cycle, and Bell-Coleman cycle.

AMMONIA and CO2 RESPECTIVELY.

Ammonia and CO2 respectively.

Evaporative COOLING.

Evaporative Cooling.

HUMIDIFICATION in SUMMER and DEHUMIDIFICATION in WINTER.

Humidification in summer and dehumidification in winter.