What three events should occur in order for an engine to start running properly?
What will be an ideal response?
For an engine to start and run properly, three things are necessary:
- Sufficient compression
- A timed spark
- Fuel and air mixed in the correct ratio
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____ are used most frequently as overtravel stops for machines, equipment, and products in process.
a. Thermostats b. Float switches c. Pressure switches d. Limit switches
If the base of a triangle is 34 mm and the height is 17.1 mm, what is the area in square millimeters?
A. 288.5 B. 290.7 C. 293.4 D. 298.3
What values of Km and Kf will scale a 4-mH inductor and a 20-?F capacitor to 1 H and 2 F respectively?
What will be an ideal response?
A 2-kW resistance heater wire whose thermal conductivity is k = 10.4 Btu/h•ft•R has a radius of ro = 0.06 in and a length of L = 15 in, and it is used for space heating. Assuming constant thermal conductivity and one-dimensional heat transfer, express the mathematical formulation (the differential equation and the boundary conditions) of this heat conduction problem during steady operation. Do not solve.
What will be an ideal response?