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| Outside micrometers are used to measure journals or shafts to check for out-of-round. T/F? |
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| Runout is a term used to determine if there is a wobble in a wheel or disc. T/F? |
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Term
| Tire pressures should be checked when the tires have been warmed up. T/F? |
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Term
| Two technicians are discussing spark plug gaps. Technician A says that it is critical that spark plug gap be set. Technician B says that a round wire feeler gauge is used to measure gap. Who is correct? |
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Term
Which of the following statements is NOT correct concerning air gaps?
1. ABS and crank sensors use the same mode of operation
2. Toothed rings are designed to trigger the sensor
3. Air gap must be set correctly for the sensors to work
4. All vehicles with ABS have a sensor at every wheel |
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4. All vehicles with ABS have a sensor at every wheel.
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Term
| Two technicians are discussing air gap measurements. Technician A says that non-magnetic feeler gauges should never be used. Technician B says that measurements should be made with a tooth of the ring aligned with the center of the sensor. Who is correct? |
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Which of the following statements about measuring shaft diameter and wear is NOT correct?
1. Measurements only need to be made in one location
2. Noise does not accurately determine wear
3. Micrometers can be USC or metric
4. Even if a shop does not overhaul motors, measurements may need to be made |
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1. Measurements only need to be made in one location.
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Term
| Two technicians are discussing measuring bearing journals. Technician A says that measurements should be made on a machined area only. Technician B says that unmachined areas are typically measured. Who is correct? |
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| Two technicians are discussing journal measurements. Technician A says that two measurements are not necessary. Technician B says an out-of-round journal will not affect bearing life. Who is correct? |
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| Two technicians are discussing bore measurements. Technician A says that bores can be measured at the top with an outside micrometer. Technician B says that bores must be measured from the inside with a telescoping gauge. Who is correct? |
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Which of the following statements about bore measurements is NOT correct?
1. Select a telescoping gauge that reaches across from cylinder wall to cylinder wall
2. Release the spindles of the telescoping gauge and when the gauge is properly positioned, lock the spindles to maintain measurement and remove the gauge
3. Any micrometer can be used to measure bores, regardless of size
4. Measure the telescoping gauge with the micrometer |
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2. Release the spindles of the telescoping gauge and when the gauge is properly positioned, lock the spindles to maintain measurement and remove the gauge.
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| Two technicians are discussing measuring bores with inside micrometers. Technician A says that extension spindles allow the measurement of cylinder bores. Technician B says that once the micrometer is inserted into the bore and extended, it should be tightened and removed. Who is correct? |
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| Two technicians are discussing runout. Technician A says that runout won’t affect vehicle operation. Technician B says that runout can cause severe vibration. Who is correct? |
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Which of the following statements about measuring runout is NOT correct?
1. Do not turn the rotor while measuring runout
2. The rotor must be held in place with at least two lug nuts to accurately measure runout
3. Preload the plunger on the dial indicator approximately half way
4. Runout is measured with a dial indicator |
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1. Do not turn the rotor while measuring runout.
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| Two technicians are discussing brake rotor thickness. Technician A says that rotors must be removed to measure thickness. Technician B says that rotors can be measured on or off the vehicle. Who is correct? |
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