The PCS2 is normally __ , with normally __ pressure. a. Open, high b. Closed, high c. Open, low d. Closed, low
There can be a difference in the way some ICs are connected. True False
Magnetic relays are not digital devices. True False
When more current is furnished to the base of the transistor than is needed for normal operation, the transistor __ is immediately shut down is immediately reenergized is driven into saturation will only operate at half effectiveness
What air pressure safety factor is required by NFPA 13 to prevent false trips due to normal pressure variations and surges? 5 psi above the valve trip pressure 10 psi above the valve trip pressure 3 psi above the valve trip pressure 20 psi above the valve trip pressure
Technician A states that the valve train assembly consists of the valves and their operating parts.Technician B states that engine displacement typically increases as the connecting rod extends. Which Technician is correct? A Technician A B Technician B C Both technicians A and B D Neither technician A nor B
If the power and ground are sufficient, if the signal wires are communicating the proper signal, and the module is not responding, chances are that the module is faulty and needs to be replaced. Select one: True False
Courtesy lights may be designed with timing circuits that allow for the cabin lamps to stay on for a short period after all the doors are shut or the vehicle is locked. Select one: True False
Increasing electrode extension in FCAW welding increases __ B spatter preheating strike oxidation
Why do the camshafts rotate at half the speed of the crankshaft? Because the exhaust valve must be opened 2 x per crankshaft revolution. Because the intake valve must be opened 1 x per 2 crankshaft revolutions. Because the exhaust valve must be opened 1 x per 2 crankshaft revolutions. Because the intake valve must be opened 2 x per crankshaft revolution.
9 Multiple Choice 1 point Which of the following is not a measurement function of a DMM? Pressure Voltage Continuity Resistance
An oilless lubricating system uses a well or reservoir in the end bell. A True B False Question 8 Which of the following statements about replacement capacitors is false? A They should have the same capacitance value as the original. B They should have a capacitance value up to $25\% $ greater than the original. C They should never be undersized. D They may have a capacitance value up to $10\% $ greater than the original.
Split-phase motors use a(n) __ to disconnect the start windings as the motor approaches running speed. A unloader B VFD C squirrel cage rotor D centrifugal switch Question 12 On a capacitor-start,induction-run motor, a centrifugal switch or relay disconnects __ when the motor reaches about $75\% $ of its rated speed. A the start winding only B the start capacitor only C both the start winding and start capacitor D both the start capacitor and run capacitor
Just before lifting off a rotary wing pilot must check the weather at the scene for a medical transport. In addition the pilot must also: Know the condition of the patient. Check the weather at the receiving hospital. Inventory all equipment on board the aircraft. Know the experience of the crew setting up the landing zone.
Advantages of ECMs include the following, except __ A ability to maintain constant airflow B easily replaceable brushes C efficient performance D variable speed Question 22 Important motor information such as rated voltage time rating, insulation class frequency, phase, and horsepower can be found on the __ A motor frame B motor nameplate C bearings D shaft
Which type of discontinuity is NEVER visible during visual inspection? underbead cracking porosity toe cracks undercut
The NEC in Table 210.24 shows that the minimum conductor size for branch-circuit wiring is __ 16 AWG 20 AWG 18 AWG 14 AWG
424170 What is the minimum number of trenches that should be dug across a truck-bed, railcar, or barge to acquire a representative sample? 3 (three) 4 (four) 5 (five) 7 (seven)
Nickel alloys should not be heat-treated. Select one: True False
The operator interface audible alarm sounds when there is a hydrogen event. Select true or false. True False
