更多"（） will be used to blow away soot a"的相关试题:
[单项选择]（） will be used to blow away the combustion products from the tube surfaces.
A. The blow down valve
B. The scum valve
C. The air release cock
D. The soot-blower
[单项选择]Soot blowers should be used in proper sequence so that（）
A. excess stresses will not be set up in the boiler
B. the decks will not be covered with soot
C. the soot will be swept toward the uptakes
D. there will not be a loss of steam pressure
[单项选择]（）is used for heaving up and slacking away the anchor and chain.
A. A winch
B. A windlass
C. A deck crane
D. A lifeboat engine
[单项选择]Heavy soot accumulations in an auxiliary boiler could be caused by（）
A. water in the fuel oil
B. excessive cycling
C. high fuel oil pressure
D. improper burner maintenance
[单项选择]The soot blowers are operating in the oil fuel boiler the air/fuel ratio must （） throughout the action, and blowers greased after use.
A. be increased
B. be decreased
C. remain constant
D. either be increased or remain constant
[单项选择]A dry-type exhaust muffler clogged with soot, will cause（）
A. low exhaust temperature
B. loss of engine power
C. burned intake valves
D. engine racing
[单项选择]The southeast trade winds actually blow toward the（）.
A. Southeast
B. South
C. East
D. Northwest
[单项选择]Bottom blow valves are installed on auxiliary water-tube boilers to （）
A. completely drain the boiler in an emergency
B. prevent sludge from forming in the drum
C. remove floating impurities from the boiler water surface
D. remove settled solids from the water drum
[单项选择]A conscious victim who has suffered a blow to the head has symptoms that indicate the possibility of concussion. If the patient feels no indication of neck or spine injury，recommended treatment would include（）.
A. turning the victims's head to the side to keep his airway open
B. positioning the victim so the head is lower than the body
C. giving the victim water if he is thirsty，but no food
D. elevating the head and shoulders slightly with a pillow
[单项选择]Diesel engine blow-by is the leakage of combustion gases past the （）
A. oil rings only
B. compression and scraper rings
C. cylinder liner sealings
D. cylinder liner ring grooves
[单项选择]Blow-off of the relief valves of the main cylinders during operation indicates （）.
A. the cylinder cover is cracked
B. the injector holes is clogged
C. the cams are not properly set
D. fuel pump is leaking
[单项选择]Blow-off of the relief valves of the engines cylinders may be caused by （）.
A. too low lead
B. water in fuel
C. too tight spring
D. leakage
[单项选择]The donkey boiler may be given a bottom blow （）
A. to raise water level
B. only while making steam
C. to remove scum
D. when fire are secured
[单项选择]The（）enables water to be blow down or emptied from the boilerIt may be used when partially or completely emptying the boiler.
A. main stem stop valve
B. auxiliary steam stop valve
C. feed check or control valve
D. blow down valve
[单项选择]Diesel engine ‘blow-by’ into the crankcase is caused by excessive ring（）
A. back clearance
B. side clearance
C. gap clearance
D. taper clearance
[单项选择]In a diesel engine, blow-by is generally the result of worn（）
A. valve guides
B. oil control rings
C. valve seats
D. compression rings
