CENG 420: K01 2006 Midterm June 22, 2006
Time: 75 Minutes Questions: 8 Total Marks: 80 NAME: STUDENT NO.:
CLOSED BOOK No Calculators All questions are each worth 10 marks
CENG 420 Artificial Inteligence Midterm
1 of 9
1. Answer the following questions: a)

Assumptions 1 Steady operating conditions exist. 2 The mixing chamber is well-insulated so that heat
loss to the surroundings is negligible. 3 Changes in the kinetic and potential energies of fluid streams are
negligible.
Properties Noting that T < Tsat @

Q2]. . . [11 points] Write down the distributive law for A over V.
A A (BVC.> E (ABS) \I (AAC)
Write down the distributive law for V over A.
A V (9MB 2 (Away (A Va)
Write down the two De Morgan laws (involving negations of /\ and V statements).
7(AABB 3 7

Assumpti
ions 1 Steady operating con
nditions exist 2 The critic Reynolds n
t.
cal
number is Recr = 5 105.
3 Radiatio effects are negligible.
on
Properties The propert of engine oil at the film temperature of (Ts + T )/2 = (80+30)/ =55 C are
s
ties
m
e
/2

Assumptio 1 Steady op
ons
perating condit
tions exist. 2 Air is an ideal g with consta properties. 3 The local
A
gas
ant
atmospheri pressure is 1 atm.
ic
Properties We assume th surface temp
he
perature to be 50 C. Then the properties of air at 1 atm an t

Assumpti
ions 1 Steady operating con
nditions exist 2 Radiation effects are n
t.
n
negligible. 3 A is an ideal gas
Air
l
with constant propertie
es.
Properties The propert of air at 1 atm and the film tempera
s
ties
ature of (Ts + T )/2 = (90+7 = 48.5 C a

Assumpti
ions 1 Steady operating con
nditions exist 2 The critic Reynolds n
t.
cal
number is Recr = 5 105.
3 Radiatio effects are negligible. 4 Air is an ideal gas with co
on
onstant prope
erties.
Properties The propert of air at 1 atm and the film
s
ties

Assumptio 1 Steady op
ons
perating condit
tions exist. 2 Air is an
A
ideal gas with constant pr
w
roperties. 3 Th local atmosp
he
pheric
pressure is 1 atm.
T
er
r
Analysis The heat transfe surface area of the cylinder is
A
DL
L
D = 2 cm
0.050 m 2
027
(0.0

CENG 420: K01 2004 Midterm June 28, 2003
Time: 75 Minutes Questions: 10 Total Marks: 80 CLOSED BOOK No Calculators
1. Put the following sentences into their conceptual graph representation: (Marks 10) a) John wrote the exam on tuesday and passed easily. b