搜题

【单选题】

If a DC motor runs hot, the cause may be （）

A、high mica condition

B、low ambient temperature

C、clogged ventilation ducts

D、an open in the shunt field

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更多“If a DC motor runs hot, the cause may be （）”相关的问题

第1题

[单选题] If a steering motor becomes overloaded, the （）

A、overload condition of 5 % will trip the motor off the line immediately B、overload condition will be indicated visually in the machinery space C、motor running indicator will begin to flash "on" and "off" in response to the sustained overload condition D、standby steering pump will start automatically and come on the line

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第2题

[单选题] Universal motors will operate on AC or DC current, and are generally found in （）

A、portable tools B、large pump motors C、turbo electric main motors D、forced draft fans

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第3题

[单选题] The most common source of excitation for synchronous motors is a/an （）.

A、low voltage battery B、motor attenuator set C、DC exciter generator D、AC supply

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第4题

[多选题] Your company has a network that has an active directory domain. The domain has two servers named DC1 and DC2. You plan to collect events from DC2 and transfer them to DC1. You configure the required subscriptions subscriptions by selecting the normal option for the event delivery optimization setting and using the HTTP protocol . you discover that none of the subscriptions work. You need to ensure that the servers support event collections, which three actions should you perform? （）

A、Run the wecutil qc command on DC1. B、Run the wecutil qc command on DC2. C、Run the winrm quickconfig command on DC1. D、Run the winrm ruickconfig command on DC2. E、Add the DC2 account to the administrators group on DC1. F、Add the DC1 account to the administrators group on DC2.

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第5题

[多选题] Your company has a network that has an Active Directory domain. The domain has two servers named DC1 and DC2.You plan to collect events from DC2 and transfer them to DC1. You configure the required subscriptions by selecting the Normal option for the Event delivery optimization setting and by using the HTTP protocol.You discover that none of the subscriptions work.You need to ensure that the servers support the event collectors.Which three actions should you perform？（）

A、Run the wecutil qc command on DC1. B、Run the wecutil qc command on DC2. C、Run the winrm quickconfig command on DC1. D、Run the winrm quickconfig command on DC2. E、Add the DC2 account to the Administrators group on DC1. F、Add the DC1 account to the Administrators group on DC2.

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第6题

[多选题] Your company has a network that has an Active Directory domain. The domain has two servers named DC1 and DC2. You plan to collect events from DC2 and transfer them to DC1. You configure the required subscriptions by selecting the Normal option for the Event delivery optimization setting and by using the HTTP protocol. You discover that none of the subscriptions work. You need to ensure that the servers support the event collectors. Which three actions should you perform?（）

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第7题

[单选题] An advantage of DC motors over AC motors is that they （）

A、are less expensive B、require less maintenance C、can be started across the line D、offer a more effective means of controlling speed

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第8题

[多选题] Given: And MainClass exists in the /apps/com/company/application directory. Assume the CLASSPATH environment variable is set to "." (current directory). Which two java commands entered at the command line will run MainClass?（）

A、java MainClass if run from the /apps directory B、java com.company.application.MainClass if run from the /apps directory C、java -classpath /apps com.company.application.MainClass if run from any directory D、java -classpath . MainClass if run from the /apps/com/company/application directory E、java -classpath /apps/com/company/application:. MainClass if run from the /apps directory F、java com.company.application.MainClass if run from the /apps/com/company/application directory

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第9题

[单选题] If a centrifugal bilge pump were continually operated with the discharge valve closed the （）.

A、motor overload would open B、relief valve would open C、pump would eventually overheat D、motor would overheat

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