更多"The greater the pressure difference"的相关试题:
[单项选择]An increased pressure differential between the inlet and outlet of a strainer usually indicates the strainer is （）
A. holed
B. fouled
C. clean
D. dry
[单项选择]The pressure range between the system cut in and cut out pressures in a refrigeration unit is known as（）
A. opposing operational drag
B. pressure distribution
C. differential
D. system purge
[单项选择]The difference between the heights of low and high tide is the（）.
A. period
B. range
C. distance
D. depth
[单项选择]Low cylinder compression pressure and a high exhaust temperature may indicate （）
A. early fuel injection timing
B. leaking valves
C. a continuously open scavenge air port
D. low cooling water temperature
[单项选择]If the head pressure is too high,（）
A. the relief valve should open before the high-pressure cutout
B. the relief valve should open and let excess refrigerant go to receiver
C. the high-pressure cutout switch should operate before the relief valve opens
D. close in on the suction valve
[单项选择]The device used for low-pressure control and high-pressure cutout on a compressor is called a（）
A. cutout
B. pressure controller
C. controller switch
D. cutout switch
[单项选择]If a large difference exists between the compressor discharge pressure and the pressure corresponding to the existing condensing temperature in a refrigeration system, you should（）.
A. increase the flow of the cooling water through the condenser
B. adjust the high pressure cutout to maintain the desired pressure
C. open the hot gas bypass temporarily to reduce capacity
D. purge non-condensable gases to reduce the excess pressure
[单项选择]The difference between international and national Navtex Service is limited to（）.
A. frequency allocated
B. both language and frequency
C. language used
D. transmission power and time
[单项选择]The difference between measured and desired values is called （）.
A. make-up
B. desired value
C. deviation
D. set value
[单项选择]The difference between magnetic heading and compass heading is called（）.
A. variation
B. deviation
C. compass error
D. drift
[单项选择]What could cause a significant difference between actual chain tension and the tension measured by the tensiometer? （）
A. The type of anchor and mooring line being used
B. The type of bottom in which the ship is anchored
C. A significant difference between air and water temperature
D. The chain contacting a chock or fairlead between the tensiometer and the lower swivel fairlead
[单项选择]The principal difference between loop scavenging and crossflow scavenging, as used in single acting diesel engines, is the （）
A. direction of air flow within the cylinder
B. sequence of port opening
C. method of opening exhaust ports
D. volume of air admitted to the cylinder
[单项选择]The steady state difference between the control point and the value of the controlled variable, corresponding with the set point, is known as （）
A. dead band
B. control point
C. deviation
D. offset
[单项选择]The difference between the height of the metacenter and the height of the center of gravity is known as the（）.
A. metacentric height
B. height of the righting arm
C. fore and aft perpendicular
D. height of the center of buoyancy
[单项选择]The difference between the forward and aft drafts is（）.
A. list
B. heel
C. trim
D. flotation
[单项选择]The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between （）.
A. 8-10℃
B. 10-12℃
C. 10-15℃
D. 10-20℃
[单项选择]The difference between the starboard and port drafts due to wind or seas is called（）.
A. list
B. heel
C. trim
D. flotation
