Answer:
George Washington was the first president
Many vehicles use halogen light bulbs. What must you avoid when handling halogen bulbs?
Answer:
here
Explanation:
try not to touch the Glass on Halogen Light Bulbs, even when changing the bulb. This is because when you touch a Halogen Light Bulb, you leave behind a residue on the Light Bulb which can in time cause the bulb to heat up unevenly, and even cause the bulb to shatter as a result.
What is the measurement
Which of the following defines context?
the ability to find new ways of thinking about a problem
the condition in which a problem exists
the study of the theoretical nature of an event
the problem-solving technique of an engineer
Answer:
The condition in which a problem exists
Explanation:
Context is the situation surrounding information, e.g. if you don't understand a word in a passge you can look for "context clues" where you use surrounding words to infer the meaning of the unknown one
Q2
a) Prove that the rotor copper loss of 3-phase induction motor is.
Pr = sP2
where Pr = rotor copper loss
S = slip
P2 = rotor input power
Pm = mechanical power developed by the roto
Answer:
Pr=sP2
Pr=rotor copper loss.
How does Brake system work
Answer:
To stop a car, the brakes have to get rid of that kinetic energy. They do so by using the force of friction to convert that kinetic energy into heat. This hydraulic system multiplies the force of your foot on the brake pedal into enough force to apply the brakes and make the car stop.
in the metric system what is the prefix for 1000
Do you think that the country that has the right to force vaccinations on the community?
Answer:
no
Explanation:
we all have the freedom to choose whether we want to have something injected in our bodies that we aren't sure about. This would be a violation of our constitutional right to force us to take the vaccine.
On a typical 120 volt circuit in your home, you may have a 15 ampere fuse or circuit breaker. What is the maximum power (watts) that this circuit can handle? How many 10 Watt light bulbs could you turn on without blowing the fuse?
Answer:
Maximum power is
P = V × I
P = 120 × 15
P = 1800 watt
Calculate the engineering stress in SI units on a bar 25 cm long and having a cross section of 9.00 mm × 4.00 mm that is subjected to a load of 3500 kg.
Answer:
7500kg/mm
Explanation:
Express the following numbers in decimal:
(a) (11001.1011)
2
(b) (A3.C)
16
(c) (75.16)
8
(d) (ABCD)
16
(a)
11001.1011₂ = 1×2⁴ + 1×2³ + 1×2⁰ + 1×2 ⁻¹ + 1×2 ⁻³ + 1×2 ⁻⁴
… = 16 + 8 + 1 + 1/2 + 1/8 + 1/16
… = 411/16
(b) In base 16, we have A₁₆ = 10 and C₁₆ = 12, so
A3.C₁₆ = 10×16¹ + 3×16⁰ + 12×16 ⁻¹
… = 160 + 3 + 12/16
… = 2620/16 = 655/4
(c)
75.16₈ = 7×8¹ + 5×8⁰ + 1×8 ⁻¹ + 6×8 ⁻²
… = 56 + 5 + 1/8 + 6/64
… = 3918/64 = 1959/32
(d) B₁₆ = 11 and D₁₆ = 13, so
ABCD₁₆ = 10×16³ + 11×16² + 12×16¹ + 13×16⁰
… = 40960 + 2816 + 192 + 13
… = 43981
Rt = R1 + R2 + R3
[tex] \frac{1}{rt} = \frac{1}{r1} + \frac{1}{r2} + \frac{1}{r3} [/tex]
If R1 = 4Ω , R2 = 6Ω and R3 = 8Ω (Ω= ohm)
Calculate: 4.1.1 Rt (series)
4.1.2 Rt (parallel)
Answer:
In series:
[tex] \frac{1}{r} = \frac{1}{r_{1} } + \frac{1}{r _{2} } + \frac{1}{r_{3} } [/tex]
[tex] \frac{1}{r} = \frac{1}{4} + \frac{1}{6} + \frac{1}{8} \\ \\ \frac{1}{r} = \frac{13}{24} \\ \\ r = \frac{24}{13} \\ { \underline{r = 1.85 \: Ω}}[/tex]
In parallel:
[tex]r = r _{1} + r _{2} + r _{3} \\ r = 4 + 6 + 8 \\ r = 18Ω[/tex]
What are the factors that influence the power input to the compressor?
a) The mass flow of air
b) The pressure ratio of the compressor
c) The inlet temperature
d) Temperature difference between the inlet and outlet
e) The properties of the working medium
Answer:
option e is correct answer
