更多"（） is the control of temperature an"的相关试题:
[单项选择]Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the （）.
A. cooling water pump
B. nozzle cooling passages
C. cylinder jackets
D. heat exchanger
[单项选择]The meat box temperature control circuit, as used in ship service refrigeration system, is an example of （）
A. two position control
B. signal speed floating control
C. proportional control
D. reset control
[单项选择]For the proper control of the air temperature in an air conditioning system using chilled water circulation, which of the listed conditions should remain constant regardless of load changes?（）
A. Chilled water system supply temperature
B. Chilled water system return temperature
C. Compressor discharge temperature
D. Compressor suction pressure
[单项选择]The (auto)ignition temperature is that temperature atwhich（）.
A. no spark or flame is required to ignite gas or vapor
B. a fuel begins to give off explosive vapors
C. a fuel if ignited will continue to burn
D. a 1% mixture of the fuel with air will explode
[单项选择]Relative humidity is the percentage of water vapor that is in the air as compared to the maximum amount it can hold at（）.
A. a specific barometric pressure
B. a specific temperature
C. a specific wind speed
D. any time
[单项选择]The humidity of the atmosphere can be determined by the use of the（）
A. anemometer
B. potentiometer
C. manometer
D. psychrometer
[单项选择]The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
A. dead band action
B. neutral zone action
C. range
D. on-off action
[单项选择]Humidity (湿度) is so intense in some parts of the tropics that Europeans find they are unable to（）it.
A. maintain
B. persist
C. endure
D. sustain
[单项选择] You are developing a Web control. The Web control captures user address information in a Web application. You create a class named AddressControl that inherits from CompositeControl. This control consists of child controls.You need to ensure that the child controls are properly output to the browser.Developers using your control must be able to set the appropriate text for labels. In addition, they must be able to pull user address information from the associated text boxes during postback. What should you do?（）
A. Override the EnsureChildControls method of the base class. Add the child controls to the base container.
B. Override the CreateControlCollection method of the base class. Add the child controls to the ControlCollection class
C. Override the CreateChildControls method of the base class. Add the child controls to the base container.
D. Override the DataBindChildren method of the base class. Add the child controls to the ControlCollection class.
[单项选择]You develop a Web control. The Web control consists of labels and associated text boxes.You need to ensure that the Web control has both toolbox and visual designer support. What should you do?（）
A. Add a Web Control Library project to your solution. Define a class that inherits from CompositeControl.
B. Add a Windows Control Library project to your solution. Define a class that inherits from UserControl.
C. Add a Web User Control to your project. Define a class that inherits from UserControl.
D. Add a Mobile Web User Control to your project. Define a class that inherits from MobileUserControl.
[单项选择]The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）
A. Cross
B. Parallel
C. Counter
D. Circular
[单项选择]Temperature and moisture characteristics are modified in a warm or cold air mass due to （）.
A. pressure changes in the air mass
B. movement of the air mass
C. the heterogeneous nature of the air mass
D. upper level atmospheric changes
[单项选择]（） control system is one in which the control action is independent of the output.
A. Feed back
B. Negative feed back
C. Close loop
D. Open loop
[单项选择]（）is the temperature today?
A. What
B. How
C. How many
D. How much
[单项选择]Air temperature varies with（）.
A. the altitude above sea level
B. the season of the year
C. the latitude or distance from the equator
D. All of the above
[单项选择]Ambient temperature is the （）.
A. amount of temperature rise with no load
B. temperature of the compartment where the motor is located
C. normal operating temperature, less the room temperature
D. amount of temperature developed by an operating motor
[单项选择]Higher than normal temperature air passing through the intake of a diesel engine will result in（）
A. greater overall efficiency
B. greater fuel economy
C. lower horsepower
D. lower compression ratio
[单项选择]A lower thermostatic temperature setting will provide a desired degree of comfort in a room where （）
A. low relative humidity is maintained
B. triple banded squirrel cage fans are used
C. air circulation is a maximum
D. high relative humidity is maintained
