Before operating the equipment, remove all _____.
a. travel stops
b. turnbuckles
c. shipping tags
d. locking nuts
a. travel stops
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What is the ideal velocity for landscape irrigation in feet per second?
a. 3 c. 5 b. 4 d. 6
The electronic stability control (ESC) system requires that the vehicle be equipped with what type of brake system?
A) Four channel ABS B) Four-wheel disc brakes C) Three channel ABS D) Front disc with rear drum brakes
More charge should be added if:
A) The system subcooling is exactly the same as specified. B) The system subcooling is more than 1° F lower than specified. C) The system subcooling is more than 1° F higher than specified. D) The system subcooling is less than 1° F higher than specified.
Answer the following statement(s) true (T) or false (F)
1. Semiconductor materials exhibit a change of resistance with a change of temperature and have a positive temperature coefficient.
2. A semiconductor material’s resistance will increase with an increase of temperature.
3. Junction diodes can be used as temperature sensors by passing a constant current through them and measuring the voltage drop across the PN junction.
4. Since semiconductor materials have a negative temperature coefficient, an increase of temperature will produce an increase in voltage across the diode.
5. Since semiconductor materials have a negative temperature coefficient, an increase of temperature will produce an increase in voltage across the diode.