Trades & Technology - Automotive; Pre Quiz 3

White exhaust smoke indicates excessive fuel being burned.

Technician A says that the use of premium high-octane gasoline in an engine designed to use regular-grade gasoline will increase engine power. Technician B says that flexible fuel vehicles are designed to operate on gasoline or gasoline-ethanol blends up to 85% ethanol. Which technician is correct?

3

If any crankshaft is ground, it must also be ________

4

A fluid level switch may fail by sticking in either the open or closed position

5

According to the text, hybrid vehicle high voltage batteries can have voltages as high as ________

6

What are the steps taken when line boring?

7

In an electronic regulator, when the AC generator output is controlled by varying the amount of time the field coil is energized, what is this called?

8

A technician connects one lead of a digital voltmeter to the positive (+) terminal of the battery and the other meter lead to the battery terminal (B) of the starter solenoid and then cranks the engine. During cranking, the voltmeter displays a reading of 878 mV. Technician A says that this reading indicates that the resistance of the positive battery cable is too high. Technician B says that this reading indicates that the starter is defective. Who is right?

9

The camshaft spins at twice the speed of the crankshaft.

10

What does the ring and pinion in the drive axle do to the torque it receives from the transmission?

11

Two technicians are discussing the safe use of a wrench. Technician A says that a wrench should be pulled toward you. Technician B says a wrench should be pushed away from you. Which technician is correct?

12

An engine diesels after being shut off. The ignition source for this problem is usually ________

13

You should always use high impedance electrical testers when troubleshooting wire harness and crash sensor problems in an air bag system.

14

Technician A says that an attendant must be present any time a pyrolytic oven is used. Technician B says that aluminum parts should be cleaned at a temperature greater than 600 deg F. Which technician is correct?

15

Change the following amount of time into its decimal equivalent of an hour. 60 minutes

16

This symbol in a wiring diagram indicates ________.

17

List the three responsibilities the employer has under the right to know laws regarding the handling of hazardous materials by employees.

18

A(n) ____________________ is when there is a high rate of current for a short period.

19

When a starter motor will not crank the engine over and the engine cannot be turned over by hand, this is called a(n) ____________________.

20

What routine service procedure could result in lower fuel economy, which the owner may notice?

21

Technician A says that the sum of the voltage drops in a series circuit should equal the source voltage. Technician B says the current (amperes) varies depending on the value of the resistance in a series circuit. Which technician is correct?

22

Technician A says that after repairing and refilling a coolant system, all air must be purged from the system. Technician B says that when refilling a cooling system, a mixture of 25 percent glycol and 75 percent water should be added. Who is correct?

23

Technician Asays a wheel-mounted pressure sensor uses wireless communication to send the pressure signal to a PSB computer, which in turn, illuminates the warning light or icon in the dash. Technician B says factory sensors are usually installed in place of the regular tire valve stem. Who is correct?

24

Technician A says that comparing the front vehicle height sensors to the rear sensors allows the ECM to determine body roll created by cornering force. Technician B says that vehicle height sensors are only located on the rear. Which technician is correct?

25

The newer Prius models use a 16-bit CPU microprocessor.

26

An ion-sensing ignition system has the ability to detect ________

27

Which of these things as a good thing to do when steering to avoid a crash

28

The rate or speed at which work is performed is called:

29

When a clutch is adjusted this dimension should also be checked and corrected if necessary:

30

During the application of artificial nails, after applying tips on natural nails what is the next step?

31

Two technicians are discussing government regulations. Technician A says OSHA oversees the transportation of hazardous materials. Technician B says the EPA enforces workplace safety laws. Which technician is correct?

32

ASE-Style Multiple Choice ____ is an airless welding method and can be utilized for both single-sided and two-sided repairs.

33

Bad ____ are a common cause of AC generator charging problems.

34

The SAE standard J2788 requires improved performance from ____________

35

Drive-through lifts are more open in the center to allow easier access to the underside of the vehicle.

36

Technician A says that a MAF sensor is a high-authority sensor and is responsible for determining the fuel needs of the engine based on the measured amount of air entering the engine. Technician B says that a cold wire MAF sensor uses the electronics in the sensor itself to heat a wire 20°C below the temperature of the air entering the engine. Which technician is correct?

37

Technician A says that a vibration felt in the seats may be caused by improper rear wheel balance. Technician B says that a vibration felt in the steering wheel may be caused by a worn clutch throwout bearing. Which technician is correct?