Hopefully that helps you out and is this for history or science?
In an airplane equipped with fuel pumps, the auxiliary electric fuel pump is used in the event the engine-driven fuel pump fails.. hope this helped !
If your accelerator gets stuck down, do the following: Shift to neutral. Apply the brakes. Keep your eyes on the road and look for a way out.If your accelerator gets stuck down, do the following:
Shift to neutral.
Apply the brakes.
Keep your eyes on the road and look for a way out.
Warn other drivers by blinking and flashing your hazard lights.
Try to drive the car safely off the road.
Turn off the ignition when you no longer need to change direction.
Answer:
a) Two points that differ in phase by π/8 rad are 0.0461 m apart.
b) The phase difference between two displacements at a certain point at times 1.6 ms apart is 4π/3.
Explanation:
f = 420 Hz, v = 310 m/s, λ = wavelength = ?
v = fλ
λ = v/f = 310/420 = 0.738 m
T = periodic time of the wave = 1/420 = 0.00238 s = 0.0024 s = 2.4 ms
a) Two points that differ in phase by π/8 rad
In terms of the wavelength of the wave, this is equivalent to [(π/8)/2π] fraction of a wavelength,
[(π/8)/2π] = 1/16 of a wavelength = (1/16) × 0.738 = 0.0461 m
b) two displacements at times 1.6 ms apart.
In terms of periodic time, 1.6ms is (1.6/2.4) fraction of the periodic time.
1.6/2.4 = 2/3.
This means those two points are 2/3 fraction of a periodic time away from each other.
1 complete wave = 2π rad
Points 2/3 fraction of a wave from each other will have a phase difference of 2/3 × 2π = 4π/3.
Answer: See explanation
Explanation:
1. How is diesel fuel ignited in a warm diesel engine?
B. Heat compression
2. Which type of diesel injection produces less noise?
A. Indirect injection (IDI)
3. Which diesel injection system requires the use of a glow plug?
A. Indirect injection (IDI)
4. The three phases of diesel ignition include:
C. Ignition delay, repaid combustion, controlled combustion.
5. What fuel system component is used in a vehicle equipped with a diesel engine that is seldom used on the same vehicle when it is equipped with a gasoline engine?
D. Water-fuel separator
6. The diesel injection pump is usually driven by a _________________.
A. Gear off the camshaft
7. Which diesel system supplies high-pressure diesel fuel to all the injectors all of the time?
C. High-pressure common rail
8. Glow plugs should have high resistance when _____________and lower resistance when __________________.
B. Warm/cold
9. Technician A says that glow plugs are used to help start a diesel engine and are shut off as soon as the engine starts. Technician B says that the glow plugs are turned off as soon as a flame is detected in the combustion chamber. Which Technician is correct?
D. Neither Technicians A NOR B
10. What part should be removed to test cylinder compression on a diesel engine?
D. A glow plug
