-
The power factor at which a paralleled AC generator operates is usually adjusted by the （）.
A . connected load
B . prime mover speed
C . field excitation
D . generators rated voltage
-
The most inefficient method of voltage reduction from the stand point of power loss, is a/an （）
A . capacitor in series with the load
B . inductor in series with the load
C . capacitor and inductor in series with the load
D . resistor in series with the load
-
The total power consumed in a parallel circuit is （）
A . the sum of the powers used in each load (resistor)
B . divided by the number of loads
C . always less than the power used in the smallest load
D . the sum of the powers used in each individual load never more than the power used in the largest load
-
What is the result of increasing the value of the parameter ASM_POWER_LIMIT during a rebalance operation？（）
A . The ASM rebalance operation will likely consume fewer resources and complete in a shorter amount of time.
B . The ASM rebalance operation will consume fewer resources and complete in a longer amount of time.
C . The ASM rebalance operation will be parallelized and should complete in a shorter amount of time.
D . There is no ASM_POWER_LIMIT setting used in ASM.
E . None of the above.
-
What is the standard power supply that is delivered with a BladeCenter H chassis for a North American customer？（）
A . Redundant 2900W （2 x 2900 W）
B . Single 2900W （1 x 2900 W）
C . Single 2000W （1 x 2000 W）.
D . Redundant 2000W （2 x 2000 W）
-
Which of the following is the correct command to document a Power Systems server using sysplan?（）
A . mksysp -m Server-9117-MMA-SN10FC123 > Server-9117-MMA-SN10FC123.sysplan
B . mksysplan -f Server-9117-MMA-SN10FC123.sysplan -m Server-9117-MMA-SN10FC123
C . sysplan -new Server-9117-MMA-SN10FC123.sysplan -m Server-9117-MMA-SN10FC123
D . sysplancreate -m Server-9117-MMA-SN10FC123.sysplan -f Server-9117-MMA-SN10FC123
-
The most powerful signal of stress is a change of pitch on the vowel.（）
A . 正确
B . 错误
-
An administrator has an existing HMC and POWER6 570 connected to a network switch. The administrator is planning to install two POWER6 570s with a dedicated HMC. Which infrastructure is required for the new HMC?（）
A . An additional switch for the new HMC
B . Asynchronous adapters on the new HMC
C . The two 570 servers are directly connected to the new HMC
D . One 570 is directly connected to the new HMC and the other is directly connected to the existing HMC
-
Which of the following is the correct command to document a Power Systems server using sysplan（）？
A . mksysp -m Server-9117-MMA-SN10FC123 > Server-9117-MMA-SN10FC123.sysplan
B . mksysplan -f Server-9117-MMA-SN10FC123.sysplan -m Server-9117-MMA-SN10FC123
C . sysplan -new Server-9117-MMA-SN10FC123.sysplan -m Server-9117-MMA-SN10FC123
D . sysplancreate -m Server-9117-MMA-SN10FC123.sysplan -f Server-9117-MMA-SN10FC123
-
The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.
A . VHF communications are basically line of sight
B . the air is more dense the higher you go
C . salt water is a poor conductor of sound
D . sea water absorbs the radiated energy
-
Heat energy is a source of power, but （） will cause damage to the engine.
A . excessive heat
B . insufficient heat
C . effective cooling
D . high output
-
A customer is unsure how POWER7 processors can outperform POWER6 processors when the clock speeds are slower. What contributes to the improved performance?（）
A . Added Turbo memory switching
B . Removed internal OLTP limits
C . Moved L3 cache onto the chip
D . Increased DDR2 memory speed
-
An administrator has an existing HMC and POWER6 570 connected to a network switch. The administrator is planning to install two POWER6 570s with a dedicated HMC. Which infrastructure is required for the new HMC？（）
A . An additional switch for the new HMc
B . Asynchronous adapters on the new HMc
C . The two 570 servers are directly connected to the new HMc
D . One 570 is directly connected to the new HMC and the other is directly connected to the existing HMc
-
What is a key advantage of the POWER5 technology over all other competitive offerings？（）
A . POWER5 supports multiple operating systems.
B . POWER5 supports more nodes in a clustered environment.
C . POWER5 hypervisor has significantly less overhead than hardware partitioning.
D . POWER5 has greater granularity of resources such as memory， processors and I/O.
-
A sailing vessel is overtaking a power-driven vessel in a narrow channel，so as to pass on the power-driven vessel’s port side. The overtaken vessel will have to move to facilitate passage. The sailing vessel is the（）.
A . stand-on vessel and would sound two short blasts
B . give-way vessel and would sound no whistle signal
C . stand-on vessel and would sound no whistle signal
D . give-way vessel and would sound two prolonged blasts followed by two short blast
-
A culture of high power distance index means the power is equally distributed.
-
The real power absorbed by a capacitor is zero. (a) (b)
-
For a balanced three-phase △ -connected load, the average power absorbed by the load is P . Change the △ -connected load to Y-connected load, the power will :
-
Unregulated power supplies contain three basic components: a transformer, retifier and filter capacitor. Thi type of power supply, because of its simplicity, is the least costly. The disadvantage is that the output voltage is not constant.
-
Which of the following is based on an individual identification with a more powerful person.
A . expert power
B . reward power
C . referent power
D . A and B.
E . A and C
-
His mother always keeps a candle in the house______there is a power cut.
A．in case
B．in the case
C．in the event
D．in event of
-
The onrush of cheap communications, powerful computers and the Internet all explain why many people feel that, nowadays, change is happening ever more rapidly as technological progress accelerates. Moore's law, that the power of microchips doubles every 18 months, has been tested and found correct. This is what gives people the sense of a world shifting beneath their feet.
2. Yet the implication that rapid change is a new phenomenon is again misleading. If you measure the time it takes for a technology to become widely diffused, today's experience does not seem unusual. Take the car. The basic patent for an internal-combustion engine capable of powering a car was fried in 1877. By the late 1920s—50 years later—over half of all American households owned a car.
3. The comparable dates for the computer axe harder to tie down, but the first big computer, based on vacuum valves, was built in 1946. The transistor—the first semiconductor device—was invented at Bell Laboratories in 1948. The first patent for an integrated circuit was filed in 1959. Now, in 1999-50 years after the first one was built—around half of American households own a computer. The pace of introduction has been similar to that of the car.
4. You have to cheat, choosing only the date for the personal computer, say(mid-1970s), or the internet (ditto) to make it seem much more rapid.
Comparing its diffusion among private users is, you might say, unfair to the computer, for that machine's main use is in businesses. On that measure, the best historical analogy is with electrification, and the spread of the electric dynamo into factories.
5. According to Paul David, a historian at Stanford University in California, the first electricity-generating stations had been installed in New York and London in 1881, but it was well into the 1920s before the dynamo became widely used and started to raise productivity. The adoption of the computer in business has also been slow, and failed to have any measurable impact on productivity until very recently.
-
听力原文：They installed a solar panel to provide the power, and instead of an old-fashioned telephone line, the Internet connection was provided by a wireless transmission system.
(86)
-
Though the Unites States is a ____ country, it should obey the rules made by the United Nations. (power)
