网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
A barometer showing falling pressure indicates the approach of a（）.
A
high pressure system
B
low pressure system
C
high dew point
D
low dew point
参考答案
参考解析
解析：
暂无解析
更多 “单选题A barometer showing falling pressure indicates the approach of a（）.A high pressure systemB low pressure systemC high dew pointD low dew point” 相关考题
考题
________ causes strong winds and rough sea at northwest Bay of Biscay．A.Strong low pressureB.Strong high pressureC.Steep pressure gradientD.Steep gradient pressure
考题
What alarm is NOT found on an inert gas system ________．A.Low oxygen alarmB.Low pressure alarmC.Scrubber high water level alarmD.Deck seal low water alarm
考题
When a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）______．A.High pressure areaB.Extratropical low-pressure systemC.Tropical stormD.Easterly wave
考题
You are located within a stationary high pressure area．Your aneroid barometer is falling very slowly．This indicates a（n）______．A.Wind shift of 180°B.Large increase in wind velocityC.Decrease in the intensity of the systemD.Increase in the intensity of the system
考题
What kind of pressure systems travel in easterly waves ________．A.High pressureB.Low pressureC.Subsurface pressureD.Terrastatic pressure
考题
______causing strong winds and rough sea north west Bay of Biscay.A.Strong low pressureB.Strong high pressureC.Steep pressure gradientD.Steep gradient pressure
考题
A barometer showing falling pressure indicates the approach of a ______.A.high pressure systemB.low pressure systemC.high dew pointD.low dew point
考题
An air mass is termed warm if ______.A.it is above 70°FB.the ground over which it moves is cooler than the airC.it originated in a high pressure areaD.it originated in a low pressure area
考题
An occluded front is caused by a(n) ______.A.low pressure areaB.high pressure areaC.area of calm airD.cold front overtaking a warm front
考题
Good weather is usually associated with a region of ______.A.low barometric pressureB.high barometric pressureC.falling barometric pressureD.pumping barometric pressure
考题
单选题A barometer showing falling pressure indicates the approach of a（）.A
high pressure systemB
low pressure systemC
high dew pointD
low dew point
考题
单选题A heated bulkhead has the effect on a hygroscopic commodity of（）.A
causing moisture to accumulate against bulkheadB
lowering the vapor pressure of the commodityC
lowering the dew point of the airD
raising the vapor pressure of the commodity
考题
单选题Early injection timing is indicated by （）.A
high exhaust temperature and low firing pressureB
high exhaust temperature and high firing pressureC
low exhaust temperature and low firing pressureD
low exhaust temperature and high firing pressure
考题
单选题Leaky exhaust valve will result in which of the following?（） (1) high exhaust temperature; (2) low compression pressure; (3) low firing pressure.A
(1) and (2)B
(1) onlyC
(2) onlyD
(1),(2) and (3)
考题
单选题（）causing strong winds and rough sea north west Bay of Biscay.A
Strong low pressureB
Strong high pressureC
Steep pressure gradientD
Steep gradient pressure
考题
单选题Late fuel injection timing is indicated by （）A
lower than normal cylinder pressure and low exhaust temperatureB
lower than normal cylinder pressure and high exhaust temperatureC
higher than normal cylinder pressure and low exhaust temperatureD
higher than normal cylinder pressure and high exhaust temperature
考题
单选题Compared to a low pressure system，generally the air in a high is（）.A
warmer，less dense，and less stableB
cool，more dense，and drierC
muggy and cloudyD
extremely moist with high relative humidity
考题
单选题High pressure and low pressure alarms must be tested（）.A
no earlier than 24 hours prior to loadingB
no later than 24 hours prior to loadingC
anytime prior to loadingD
weekly
考题
单选题Which of the listed set of conditions indicates early fuel injection timing?（）A
Loss of engine power and high exhaust temperaturesB
Higher than normal firing pressure and low exhaust temperaturesC
High fuel consumption and high exhaust temperaturesD
Lower than normal compression pressure and high exhaust temperature
考题
单选题Either a low injection pressure or a leakage of piston rings is able to lead （）.A
a high exhaust temperatureB
a high smoky exhaustC
a high outputD
a high compression
考题
单选题The greater the pressure difference between a high and a low pressure center，the（）.A
dryer the air mass will beB
cooler the temperature will beC
greater the force of the wind will beD
warmer the temperature will be
考题
单选题Two well-developed high pressure areas may be separated by a（）.A
Hill of low pressureB
Trough of low pressureC
Valley of low pressureD
Ridge of low pressure
考题
单选题The loss of the diesel engine cylinder air charge through leaky valves, piston rings, worn or scored liners, would be indicated by which of the following sets of conditions?（）A
Low compression pressure and high exhaust temperatureB
Low firing pressure and high exhaust temperatureC
Low compression pressure and low exhaust temperatureD
Low firing pressure and low exhaust temperature
考题
单选题An indication of a diesel engine air intake being partially clogged, is （）.A
low firing pressure and low exhaust temperaturesB
low firing pressure and normal exhaust temperaturesC
high firing pressure and low exhaust temperaturesD
high firing pressure and high exhaust temperatures
考题
单选题An air mass is termed warm if（）.A
it is above 70°FB
the ground over which it moves is cooler than the airC
it originated in a high pressure areaD
it originated in a low pressure area
考题
单选题An un-loader is installed on an air compressor to （）.A
bypass the high pressure stage to the low pressure stage on 100% of the air compressors in serviceB
prevent excessive inter-stage pressure buildupC
control compressor discharge pressureD
remove all but the frictional load during starting
考题
单选题The direction of the surface wind is（）.A
directly from high pressure toward low pressureB
directly from low pressure toward high pressureC
from high pressure toward low pressure deflected by the earth's rotationD
from low pressure toward high pressure deflected by the earth's rotation
考题
单选题The device used for low-pressure control and high-pressure cutout on a compressor is called a（）A
cutoutB
pressure controllerC
controller switchD
cutout switch
热门标签
最新试卷