If the fifth-wheel locking pins appear to be stuck, the driver can usually free them by
A. gently rocking the tractor
B. carefully moving the fifth wheel forward
C. knocking the kingpin into position
D. pressing and releasing the air brakes
Answer: A
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Answer the following statements true (T) or false (F)
1 A gravimetric feeder conveys material at a controlled rate by running at a set motor speed. 2 A volumetric feeder must have a predetermined maximum feed rate that is calculated by the feeder’s maximum motor speed and material density. 3 A trickle valve is a free-hanging flap between two different pressure environments and maintains an air seal inside a flow area. 4 Flare systems are most often used during emergency situations and unit start-ups and shutdowns to dispose of gases rapidly. 5 "Landfills allow contaminants to leach into the soil to complete their for proper decomposition." 6 A cement truck is an example of a drum mixer.
La corriente secundaria en un transformador de corriente constante es normalmente de entre:
a. 0,5 A y 1 A. b. 1 A y 2 A. c. 4 A y 7,5 A. d. 10 A y 20 A.
? Identify and state the historical significance of Jacob Riis.
What will be an ideal response?
Cycles per second are expressed in ________
A) Slope B) Duty cycle C) Pulse width D) Hertz