Questions $(20$p$)-$ Part A

states that heat flow innamics; $-$is essentially in expression of the congecration of en

$-$is essenti heat flows in the direction of decreasing temperature

states th princip

all of the above

$(2$p$)2.$ The volume of a simple compressible system are known. How many more intensive independent properties are needed to fix the state of this system?

zero

one

two

three

$(2$ p $)3.$ If a substance is assumed incompressible, which of its properties can be considered as constant? forse

$q,$

temperature

energy

density

force

pressure

$2$p$)4.$ Mass of the energy generated in the engine of a car is rejected to the air by the radiator through the circulating water. The radiator should be analysed as; $q,$

$-------$open $q,$

engine

closed system

open system

depends on the engine

$2$p$)5.$ Which one is valid among the following statements about

the higher the quality, the better the pure substance

the quality of superheated vapor is greater than $1$

the value of the quality $(x)$ always is $0x1$

$2$p$)6.$ BTU is a measure of ; $q,$ Pressure

energy

power

$q,$

none of them

No heat tronsfer

$q,$

$2$p$)7.$ An adiabatic process is associated with;$-$

No change in temperature $-$ No change in pressure

No heat transfer

p$)8.$ The region representing the compressed liquid is;$--$cegion $D$

region A

region B

region C

region D

p$)9.$ Fill in the correct word to make the following statement true. $($process$,$ property, cycle, homogeneous, intensive, extensive, two, three, path$)\text{'}$In engineering, all equations must be dimensionally, homagoseous $s$ which implies that every term must have same unit. A system is said to have undergone a $q,,$ if it returns to its initial state at the end of the process. The state postulate states that the state of a simple compressible system is completely specified by $q,$ independent $q,$ properties'.