更多"Thermal energy in transition is als"的相关试题:
[单项选择]Mechanical energy in transition is referred to as （）.
A. horsepower
B. work
C. heat
D. velocity
[名词解释]状态转移矩阵 (state transition matrix)
[单项选择]Chemical Tankers are generally referred to the cargo ships constructed or adapted and used for the carriage of（）.
A. liquid chemicals in bulk
B. solid chemicals in bulk
C. chemicals in bulk
D. cargoes in bulk
[单项选择]The thermal expansion valve reacts directly to the （）
A. temperature in the space being cooled
B. liquid refrigerant pressure at the solenoid valve
C. pressure drop across the evaporator coils
D. refrigerant gas superheat at the coil outlet
[单项选择]The thermal expansion valve controls the amount of refrigerant that is allowed to flow to the （）.
A. compressor
B. cooling coils
C. condenser
D. receiver
[单项选择]The steering oar in a lifeboat is usually referred to as the（）.
A. bumpkin oar
B. stroke oar
C. sweep oar
D. becket oar
[单项选择]The bulb for the thermal expansion valve is located（）
A. in the middle of evaporator coils
B. near the evaporator coil outlet
C. near the evaporator coil inlet
D. on the bottom row of evaporator coils
[单项选择]The thermal expansion valve responds to the（）
A. amount of superheat in the vapor leaving the coil
B. amount of superheat in the liquid
C. temperature in the evaporator coils
D. pressure in the evaporator coils
[单项选择]Aluminum pistons have （） coefficient of thermal expansion compared with those of cast iron.
A. higher
B. lower
C. the same
D. none of the above
[单项选择]When a router has to make a rate transition from LAN to WAN, what type of congestion needs should be considered in the network design?（）
A. RX-queue deferred
B. TX-queue deferred
C. RX-queue saturation
D. TX-queue saturation
E. RX-queue starvation
F. TX-queue starvation
[单项选择]One function of the thermal expansion valve is to（）
A. act as a pilot from the solenoid valve
B. regulate the amount of refrigerant flow to the coil
C. regulate the water flow
D. turn the compressor off and on
[单项选择]A feeler or thermal bulb is used for the expansion valve to （）.
A. detect the temperature
B. detect the pressure
C. heat the refrigerant
D. accelerate the refrigerant
[单项选择]In order to control thermal stresses, some types of modern engines use pistons with（）
A. heavy wall and intensive cooling
B. heavy wall and no cooling
C. thin wall and no cooling
D. thin wall and intensive cooling
[单项选择]If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
A. increase the capacity of the coil
B. increase the superheat at the bulb
C. deliver more refrigerant to the coil
D. decrease the capacity of the coil
[单项选择]Clean air standards referred to as “Grade D” apply to compressed air for use in（）.
A. high pressure fluid accumulators
B. driving air-powered plunger pumps
C. filling open-circuit breathing systems
D. bladder-type accumulators
[单项选择]A vessel would be referred to as tender when the weight of the cargo is（）.
A. evenly distributed vertically and the double bottoms are full
B. concentrated low and the double bottoms are empty
C. concentrated low and the double bottoms are full
D. concentrated high and the double bottoms are empty
[单项选择]Cylinder liner cooling is often referred to as （）.
A. piston cooling
B. sleeve cooling
C. central cooling
D. jacket cooling
