Electrical Engineering

Most standby generator systems are designed to provide power to all loads in case of a utility power ...

Most standby generator systems are designed to provide power to all loads in case of a utility power ...

 Most standby generator systems are designed to provide power to all loads in case of a utility power failure.

▸ true

▸ false

18iq   27   1 Reply

overlandtrail

For the circuit shown, the impedance (Z) would be

For the circuit shown, the impedance (Z) would be

[html]For the circuit shown, the impedance (Z) would be

32264   26   1 Reply

aupadhay287

Please help me with the following questions - Automechanics

Please help me with the following questions - Automechanics

1.   Which one of the following is a prime source of problems in secondary air systems?
    
A. Engine coolant
B. Engine oil
C. Water
D. Dirt

2.   The positive crankcase ventilation (PCV) syst

aantonopoulos   944   6 Replies

awc21

Please help with the following Questions - AutoMechanics (Part 2)

Please help with the following Questions - AutoMechanics (Part 2)

9.   You're using a scan tool to evaluate the overall exhaust gas recirculation (EGR) system operation on a vacuum-type EGR system. Which one of the following is the best parameter to monitor with a scan tool?
     
A.

aantonopoulos   3883   11 Replies

bio_man

Please help with the following Questions - Auto-Mechanics (Part 4)

Please help with the following Questions - Auto-Mechanics (Part 4)

2.   Technician A says that many port fuel-injection systems on four-cylinder engines use a simultaneous firing of injectors. Technician B says that sequential fuel injectors are timed and pulsed individually, much like the spark plugs are seque

aantonopoulos   2328   7 Replies

VyprMoto

Please help with the following questions - Auto-Mechanics (Part 6)

Please help with the following questions - Auto-Mechanics (Part 6)

1.   Technician A says that nonemission-related codes that make the malfunction indicator lamp (MIL) illuminate are called "Type A" codes. Technician B says that emission-related codes that illuminate the MIL after the first fault are

12

aantonopoulos   2580   15 Replies

Dwayne Philpot

Please help me with these questions - Auto-Mechanics (Part 3)

Please help me with these questions - Auto-Mechanics (Part 3)

5.   Which of these items will least likely increase pressure in the evaporative emission control system?
     
A. Volatility of the fuel
B. Returned fuel from the fuel-injection system
C. Fuel temperature
D.

aantonopoulos   370   3 Replies

Suedyso

Please help with the questions below - Auto-Mechanics (Part 5)

Please help with the questions below - Auto-Mechanics (Part 5)

12.   Technician A says that the most efficient method of EVAP system leak detection is introducing smoke under low pressure from a machine specifically designed for this purpose. Technician B says that nitrogen gas pressurization uses nitrogen

aantonopoulos   269   4 Replies

Kstan109

Please help with the following Questions - Auto-Mechanics (Part 7)

Please help with the following Questions - Auto-Mechanics (Part 7)

1. Technician A says that nonemission-related codes that make the malfunction indicator lamp (MIL) illuminate are called "Type A" codes. Technician B says that emission-related codes that illuminate the MIL after the first fault are called

aantonopoulos   691   8 Replies

bio_man

Please help with the questions below (Part 8)

Please help with the questions below (Part 8)

Courtesy of Chrysler Corporation

2.   The above wiring diagram is from a vehicle with a misfire diagnostic trouble code (DTC) for number 4 cylinder. Which of the following is the most likely cause?
     
A. Bad co

aantonopoulos   2197   3 Replies

nwhite33

Please help with the following questions: Hybrid and Fuel Cell Vehicles (Part 1)

Please help with the following questions: Hybrid and Fuel Cell Vehicles (Part 1)

2. Technician A says that polymer electrolyte fuel cells (PEFCs) can use hydrogen as fuel. Technician B says that proton exchange membrane (PEM) fuel cells can use hydrogen as fuel. Which technician is correct?
 
A. Technician B only

aantonopoulos   238   2 Replies

bio_man

Please assist with the questions below (Hybrid and Fuel Cell Vehicles - Part 2)

Please assist with the questions below (Hybrid and Fuel Cell Vehicles - Part 2)

3. Technician A says that polymer electrolyte fuel cells (PEFCs) can use hydrogen as fuel. Technician B says that proton exchange membrane (PEM) fuel cells can use hydrogen as fuel. Which technician is correct?
 
A. Technician B only

aantonopoulos   191   1 Reply

Curtis Nolingal

Please assist with the following questions (Engine Diagnostics)

Please assist with the following questions (Engine Diagnostics)

10.   A vehicle fails an HC emission test at idle and 2,500 rpm, and the engine has an acceleration stumble. The heated oxygen sensor (HO2S) voltage is 0.1–0.3 volts on a scan tool, and the injector pulse width is high. No diagnostic trouble cod

aantonopoulos   563   N/A

aantonopoulos

Please assist with the following questions (Drum and Disc Brakes)

Please assist with the following questions (Drum and Disc Brakes)

1.   Manufacturers use specific lining materials that dampen vibrations to quiet noisy disc brakes. Most calipers use _______ to hold the pads in the caliper under tension to help prevent vibration.
 
A. antirattle clips
B. stif

aantonopoulos   1828   3 Replies

priyan

Please assist with the following questions (Hydraulic Braking Systems - Part 2)

Please assist with the following questions (Hydraulic Braking Systems - Part 2)

1.   Technician A says the proportioning valve controls pressure to the rear brakes to prevent wheel lockup. Technician B says the front-brake metering valve delays brake pressure to the front calipers during a hard brake application. Who is cor

aantonopoulos   426   4 Replies

bio_man

Please assist in helping me with the questions below (Antilock Braking Systems (ABS))

Please assist in helping me with the questions below (Antilock Braking Systems (ABS))

1.   The antilock braking system component most likely to sustain damage is the
     
A. hydraulic pump.
B. wheel speed sensor.
C. control module.
D. master cylinder.

2.   When observing wheel

aantonopoulos   1399   2 Replies

bio_man

Please assist with the following questions (Hydraulic Braking Systems)

Please assist with the following questions (Hydraulic Braking Systems)

1.   Technician A says the proportioning valve controls pressure to the rear brakes to prevent wheel lockup. Technician B says the front-brake metering valve delays brake pressure to the front calipers during a hard brake application. Who is cor

aantonopoulos   686   3 Replies

hmonier

Please help me with the questions below (Engine Diagnostics)

Please help me with the questions below (Engine Diagnostics)

1.   An OBD-II vehicle fails an emission test with high CO and HC emissions. Technician A says that the cause may be low fuel pressure. Technician B says the cause may be a restricted return line on the fuel supply system. Who is correct?

12

aantonopoulos   5022   18 Replies

Adam638

Please help me with the questions below (Drum and Disc Brakes - Part 2)

Please help me with the questions below (Drum and Disc Brakes - Part 2)

9.   Which of these is the greatest disadvantage of drum brakes?
 
A. Lack of adjustment
B. Lack of proper power assist
C. Poor parking brake performance
D. Brake fade
 
10.   A starwheel adjuster is

aantonopoulos   468   2 Replies

Shiloni James

Please assist me with the following questions: Antilock Braking Systems (ABS)

Please assist me with the following questions: Antilock Braking Systems (ABS)

3.   The red brake warning lamp is dimly lit on a rear-wheel-drive pickup with RWAL. Which is the most likely cause?
     
A. Hydraulic system failure
B. Computer malfunction
C. Antilock braking system fault

aantonopoulos   2022   2 Replies

Anthony Romero

Please Assist with the following questions (Clutch and Manual Transmissions)

Please Assist with the following questions (Clutch and Manual Transmissions)

2.   If the driven gear has 48 teeth and the drive gear has 12 teeth, the gear ratio is
 
A. 4.5:1.
B. 4:1.
C. 2.4:1.
D. 3:1.

3.   The pressure plate in a clutch assembly is bolted to and rotates wit

aantonopoulos   262   1 Reply

bio_man

Please assist with the following questions (Automatic Transmission and Transaxle Operation)

Please assist with the following questions (Automatic Transmission and Transaxle Operation)

1.   Technician A says that a continuously variable transmission uses two pulleys and a drive chain to change gear ratios. Technician B says that one clutch in a dual clutch transmission is used for first, second, and third gears. Which technici

aantonopoulos   469   1 Reply

Aliya1

Please assist with the questions below (Automatic Transmission and Transaxle Operation - Part 2)

Please assist with the questions below (Automatic Transmission and Transaxle Operation - Part 2)

10.   The resistance of most on-off shift solenoids is _______ ohms.
     
A. 8–12
B. 10–15
C. 15–20
D. 5–10

12.   In certain conditions, the torque converter clutch increases efficiency by

aantonopoulos   200   1 Reply

bio_man

Please assist with the following questions (Automatic Transmission and Transaxle Service)

Please assist with the following questions (Automatic Transmission and Transaxle Service)

1.   Which of the following statements is true of checking the stall speed of a vehicle?
     
A. The line pressure is higher in reverse and may give a more accurate engine speed.
B. The engine speed in reverse is cappe

aantonopoulos   292   7 Replies

bio_man

Please help me with the questions below (Automatic Transmission and Transaxle Service Part 2)

Please help me with the questions below (Automatic Transmission and Transaxle Service Part 2)

1.   Which of the following statements is true of checking the stall speed of a vehicle?
     
A. The line pressure is higher in reverse and may give a more accurate engine speed.
B. The engine speed in reverse is cappe

aantonopoulos   354   1 Reply

bio_man

Please assist with the questions below (Automatic Transmission and Transaxle Service Part 3)

Please assist with the questions below (Automatic Transmission and Transaxle Service Part 3)

7.   Technician A says that when a scan tool is used to command an upshift, the transmission shouldn't be in drive. Technician B says if the scan tool commands a shift to occur and a shift doesn't occur, the problem is either in the sh

aantonopoulos   117   1 Reply

bio_man

The Sziklai pair uses two types of transistors, an npn and a pnp.

The Sziklai pair uses two types of transistors, an npn and a pnp.

The Sziklai pair uses two types of transistors, an npn and a pnp.

• true

• false

achalmers   70   2 Replies

achalmers

The sine wave shown is the input signal.Refer to Figure 4. The correct output waveform is ...

The sine wave shown is the input signal.Refer to Figure 4. The correct output waveform is ...

[html]

achalmers   102   2 Replies

achalmers

The sine wave shown is the input signal.Refer to Figure 4. If the zener were reversed, the ...

The sine wave shown is the input signal.Refer to Figure 4. If the zener were reversed, the ...

[html]

achalmers   96   1 Reply

Steve Trainer

Response curve for three different filters Refer to Figure 5. The response labeled "A" represents a

Response curve for three different filters Refer to Figure 5. The response labeled "A" represents a

[html]

achalmers   86   2 Replies

achalmers

The output of an AM demodulator is only the audio signal.

The output of an AM demodulator is only the audio signal.

Question 1.In a single-sideband system there is a carrier and one sideband.

• true

• falseQuestion 2.The output of an AM demodulator is only the audio signal.

• true

• false

achalmers   99   1 Reply

Curtis x9

________ value is the value at any point in time on the sine wave.

________ value is the value at any point in time on the sine wave.

________ value is the value at any point in time on the sine wave.

▸ RMS

▸ Peak

▸ Peak-to-peak

▸ Instantaneous

adotey   33   1 Reply

mooltipas

The bipolar junction transistor (BJT) is a current-controlled device.

The bipolar junction transistor (BJT) is a current-controlled device.

The bipolar junction transistor (BJT) is a current-controlled device.

▸ true

▸ false

adriii0825   59   1 Reply

kidace

For the parallel RC circuit shown, the power factor would be

For the parallel RC circuit shown, the power factor would be

[html]For the parallel RC circuit shown, the power factor would be

aeropa84   43   1 Reply

fs125

For the circuit shown, the voltage drop across resistor R3 would be:

For the circuit shown, the voltage drop across resistor R3 would be:

[html]For the circuit shown, the voltage drop across resistor R3 would be:

afrah   38   1 Reply

rainbow12

The superposition theorem is used to solve circuits with single voltage or current source.

The superposition theorem is used to solve circuits with single voltage or current source.

The superposition theorem is used to solve circuits with single voltage or current source.

▸ true

▸ false

afrah   29   1 Reply

krissyc39

For the parallel RC circuit shown, the capacitance value of the capacitor would be

For the parallel RC circuit shown, the capacitance value of the capacitor would be

[html]For the parallel RC circuit shown, the capacitance value of the capacitor would be

afrah   26   1 Reply

heathernhull

Power factor correction is achieved by the addition of ________ to motor control circuits.

Power factor correction is achieved by the addition of ________ to motor control circuits.

[html]Power factor correction is achieved by the addition of ________ to motor control circuits.

▸ capacitors connected in parallel

▸ capacitors connected in series

▸ inductors connected in parallel

▸ inductors con

afrah   28   1 Reply

maogin

To determine the polarity of the voltage drop across a resistor, it is necessary to know the:

To determine the polarity of the voltage drop across a resistor, it is necessary to know the:

[html]To determine the polarity of the voltage drop across a resistor, it is necessary to know the:

▸ value of the current through the resistor.

▸ direction of the current through the resistor.

▸ resistance value of the res

agoldberg2011   26   1 Reply

sherbiejr16

Liquid-filled transformers use oil for cooling purposes.

Liquid-filled transformers use oil for cooling purposes.

Liquid-filled transformers use oil for cooling purposes.

▸ true

▸ false

ahyukj   23   1 Reply

diana72g