Kickback is prevented in a power recirculating ball steering gear by:
A. The preload between the ball nut teeth and the sector gear teeth
B. The flexible coupling in the steering shaft
C. An interference fit between the sector shaft and ball nut
D. A poppet valve in the pressure inlet fitting
Answer: D
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Indicate whether the statement is true or false
Which of the statements below best describes the basic operation of a dual-slope A/D converter?
A) The input voltage is used to set the frequency of a voltage-controlled oscillator (VCO). The VCO quits changing frequency when the input voltage stabilizes. The frequency of the VCO, which is proportional to the analog input voltage, is measured and is displayed on the digital display as a voltage reading. B) A ramp voltage and analog input voltage are applied to a comparator. As the input voltage causes the integrating capacitor to charge, it will at some point equal the ramp voltage. The ramp voltage is measured and displayed on the digital panel meter. C) Two ramps are generated: one by the input voltage and the other by a reference voltage. The input voltage ramp charges the integrating capacitor, while the reference voltage discharges the capacitor and enables the counter until the capacitor is discharged, at which time the counter value is loaded into the output latches. D) A ramp generator is used to enable a counter through a comparator. When the ramp voltage equals the input voltage the counter is latched and then reset. The counter reading is proportional to the input voltage since the ramp is changing at a constant V/second rate.
The primary advantage of mechanical fittings over heat-bonded joints is that they _____
A) are much stronger B) are less likely to leak C) can be used on smaller sizes of tubing D) can be taken apart and reassembled more easily
If 30 out of 75 piston pins are rejected, what percent is rejected?
A. 20 B. 25 C. 30 D. 40