单选题The function of the bypass valve on the self-contained breathing apparatus is to（）.Acontrol the pressure of the oxygen as it enters the bodyBallow the wearer to manually give himself oxygenCrelease excess heat which would otherwise cause the bottle to explodeDallow exhaled gases to pass outside the bottle
单选题
The function of the bypass valve on the self-contained breathing apparatus is to（）.
A
control the pressure of the oxygen as it enters the body
B
allow the wearer to manually give himself oxygen
C
release excess heat which would otherwise cause the bottle to explode
D
allow exhaled gases to pass outside the bottle
参考解析
解析：
暂无解析
相关考题：
On a ship, the locker or space containing the self-contained breathing apparatus must _____.A.be located in close proximity to the main control stationB.be equipped with battery powered emergency lightingC.be marked SELF-CONTAINED BREATHING APPARATUSD.All of the above
The CO2 flooding system is actuated by a sequence of steps which are ______.A.break glass, pull valve, break glass, pull cylinder controlB.sound evacuation alarm, pull handleC.open bypass valve, break glass, pull handleD.open stop valve, open control valve, trip alarm
When replacing a thermostatic expansion valve sensing bulb, it is necessary toA.apply a light film of oil to increase heat transferB.apply a light film of oil to prevent oxidationC.apply a heavy coating of grease to function as a heat sinkD.carefully coat the device with silicone sealant to reduce the effects of convective cooling
The bypass valve on a self-contained breathing device should be opened if ______．A.You are entering a space containing poisonous vaporsB.You are entering a space containing explosive gasesC.The regulator of the breathing apparatus malfunctionsD.The face piece of the breathing device is too tight
The function of the bypass valve on the self-contained breathing apparatus is to ______．A.control the pressure of the oxygen as it enters the bodyB.allow the wearer to manually give himself oxygenC.release excess heat which would otherwise cause the bottle to explodeD.allow exhaled gases to pass outside the bottle
YOU issue the pins interface tl-1/1/0 1.1.1.1 bypass-routing count 1000 rapid command.Which statement is correct?（）A、The bypass-routing parameter is used to test the density on the TI line.B、The bypass-routing parameter cannot be used on a T1 interface.C、The bypass-routing parameter allows you to ping a host through an interface that has no route through it.D、The bypass-routing parameter allows you to ping a local WAN interface without generating any outbound traffic
关于防火墙中硬件描述错误的是（）A、USG2200支持电口Bypass卡B、USG5100支持电口Bypass卡C、USG5500支持电口Bypass卡D、USG5500支持光口Bypass卡
What is the S-Series Proxy Bypass List？（） A、a list of proxy servers that are to be bypassedB、a list of clients and destinations that will bypass the proxy in transparent modeC、a list of clients and destinations that will bypass the proxy in explicit forward modeD、a list of user agents exempt from authentication
单选题The bypass valve on a self-contained breathing device should be opened if（）.Ayou are entering a space containing poisonous vaporsByou are entering a space containing explosive gasesCthe regulator of the breathing apparatus malfunctionsDthe face piece of the breathing device is too tight
单选题When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear,the（）.Aram relief valves bypass oil to stop rudder movementBsix-way valve shifts to the neutral flow positionCsteering pump electric motor is de - energized by the transfer switchDfollow-up gear takes the hydraulic pump off stroke
单选题When the helm demands a 20°right rudder movement from an electro-hydraulic steering gear, which of the listed actions will be the FIRST action to happen when this rudder position is attained?（）AThe six-way valve opensBThe steering service pump motor is stoppedCThe follow-up gear takes the pump off strokeDThe cylinder relief valves bypass oil to the suction side the pump
单选题Which of the following statements describes the function of an air compressor intake filter?（）AProtects against suction valve floatBProvides a positive pressure on the air inlet valvesCPrevents lubricating oil contamination of the compressed air supplyDProtects against the damaging effects of airborne solid particles
单选题The primary function of a fuel delivery check valve assembly is to（）Adeliver proper fuel quantity to the injection nozzleBprovide rapid fuel injection cutoffCcontrol fuel quantity entering the pump bodyDcontrol fuel pressure delivered to the combustion chamber
单选题Which one of following statement is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?（）Athe direct acting relief valve is used for controlling lower flows and pressureBthe pilot operated relief valve is used for controlling higher flows and pressureCthe pilot operated relief valve is used for controlling lower flows and pressureDthe controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
单选题What is the S-Series Proxy Bypass List？（）Aa list of proxy servers that are to be bypassedBa list of clients and destinations that will bypass the proxy in transparent modeCa list of clients and destinations that will bypass the proxy in explicit forward modeDa list of user agents exempt from authentication
单选题The C02 flooding system is actuated by a sequence of steps which are（）.Abreak glass，pull valve，break glass，pull cylinder controlBsound evacuation alarm，pull handleCopen bypass valve，break glass，pull handleDopen stop valve，open control valve，trip alarm
单选题What is the function of thermostatic expansion valve in a compression refrigeration system?（）AnonexistentBfor controlling pressureCfor controlling superheatDfor controlling the solenoid valve
单选题In a full flow type lube oil system, the bypass relief valve will lift due to （）Aa clogged filter elementBexcessive lube oil pump discharge pressureCexcessive lube oil flowDexcessively hot lube oil
单选题What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）AThe tank must be gas freedBThe tank must be ballastedCThe tank must be vented to the atmosphereDThe bypass valve must also be closed
单选题Which of the following problems will occur if the internal drain at either end of a hydraulic, two-way, spool-type directional control valve cylinder were to become plugged?（）AThe reservoir would become vapor boundBThe valve would be placed in hydraulic lockCThe spring loaded relief ports would openDThe buffering chambers would be unable to function
单选题Diesel engine valve springs function to （）Ahold the valves openBkeep the valves off their seats until the exhaust stroke is completedCclose the valvesDopen inlet valves when the air injection cycle begins
单选题Valve lash, or clearance refers to the （）Aclearance between the top of the valve stem and the rocker armBcompression of the valve springsCclearance between the valve seat inserts and the headDout of roundness of the fuel injection cams
单选题With MPLS Fast Reroute, what is the "point of local repair"?（）Aegress routerBingress routerCstart of the bypass tunnelDall routers in the bypass tunnel
单选题Valve cages are used on some large diesel engines to （）Areduce wear on the valve stemBpermit the use of alloy valve seat materialsCreduce heat transfer from the valve seatDfacilitate valve removal for servicing
单选题A faulty thermostatic bypass valve, in a diesel engine cooling system, can result in （）Aexcessive time required for warming-upBexcessive freshwater corrosionCscale formation on the saltwater sideDsaltwater mixing with the freshwater
单选题One function of the thermal expansion valve is to（）Aact as a pilot from the solenoid valveBregulate the amount of refrigerant flow to the coilCregulate the water flowDturn the compressor off and on