1) An isentropic flow: a) has no heat transfer, b) does not
allow temperature to change,...
1) An isentropic flow: a) has no heat transfer, b) does not
allow temperature to change, c) can occur in a real physical
problem, d) can only occur when the fluid is at rest.
2) Based on the first law of thermodynamics (assuming no
chemical reactions, i.e. just a simple gas like air or helium): a)
changing the flow velocity can heat the flow, b) moving a solid
body through a fluid can heat the fluid, c) compressing a perfectly...
Thermodynamics: Consider the equilibrium reaction A(g) + B(g)
-><- C(g)+D(g). At T=298 K, the standard enthalpies...
Thermodynamics: Consider the equilibrium reaction A(g) + B(g)
-><- C(g)+D(g). At T=298 K, the standard enthalpies of
formation of the components in the gas phase are -20, -40, -30, and
-10 kJ/mol for A,B,C, and D, respectively. The standard-state
entropies of the components in the gas phase are 30, 50, 50, and 80
J/(mol K), in the same order. The vapor pressure of liquid C at
this temperature is 0.1 bar, while all other components are
volatile gases with Henry's...
A B C D E 1. Force per unit area is a) momentum, b) power, c)...
A B C D E 1. Force per unit area is a) momentum, b) power, c)
energy, d) pressure, e) impulse.
A B C D E 2. The law which deals with pressure applied to a
confined fluid is a) Archimedes Principle, b) Pascal's Principle,
c) Bernoulli's Principle, d) Newton's Second Law.
PART 2 – PROBLEMS, If your answer differs by a little bit in the
last digit, remember that the answers here may have been rounded
off
A B...
A number between 1 and 10 is chosen. Events A,
B, C, and D are defined...
A number between 1 and 10 is chosen. Events A,
B, C, and D are defined as follows.
A: {The number is even}
B: {The number is less than 7}
C: {The number is less than or equal to 7}
D: {The number is 5}
Identify all events that are mutually exclusive.
Select one:
a. C and D
b. None of the other answers
c. A and B
d. A and C
e. B and D
1. The visible region of the sun is known as a. corona b.
photosphere c. radiation...
1. The visible region of the sun is known as a. corona b.
photosphere c. radiation zone d. chromosphere
2. The average temperature of that part of the sun, which we
see, is (a) 6000 k (b) 60,000 k (c) 600 k (d) 15 million k
3. Granulation of the sun is caused by a. sunspots b.
prominences c. convection d. radiation
4. Convection zone is located a. next to the core b. between
radiation zone and photosphere c. between...
(1) 43 is the same as
Select one:
a. 16
b. 64
c. 8
d. none...
(1) 43 is the same as
Select one:
a. 16
b. 64
c. 8
d. none of the above
(2) A man buys 3 burgers and 2 jumbo deluxe fries for $7.40. A
woman buys one burger and 4 jumbo deluxe fries for $7.80. How much
is the burger and how much are the fries?
Select one:
a. Burger = $1.40, Fries = $1.60
b. Burger = $1.50, Fries = $1.80
c. Burger = $2.80, Fries = $2.00
d. Burger...
A thumbs up will be given:
Table 1
t
A
B
C
D
0
(14,900,000)...
A thumbs up will be given:
Table 1
t
A
B
C
D
0
(14,900,000)
(17,900,000)
(16,600,000)
(19,700,000)
1
4,980,000
5,990,000
3,850,000
6,400,000
2
4,980,000
6,210,000
4,990,000
5,880,000
3
4,510,000
6,250,000
6,860,000
6,800,000
4
4,510,000
4,700,000
4,990,000
6,650,000
Risk
High
Average
Low
Average
Table 1 shows the expected after-tax operating cash flows for
each project. All projects are expected to...