A liquid indicator sight glass is useful in determining whether or not a refrigeration system is sufficiently chargedIt is generally located in the（）.

相似题目

• A petroleum liquid has a flash point of 85°F. This is a grade （）.

  A . B flammable liquid B . C flammable liquid C . D combustible liquid D . E combustible liquid

  查看最佳答案

• The volatility of a liquid is the tendency of a liquid to （）.

  A . ignite B . explode C . asphyxiate D . vaporize

  查看最佳答案

• Some refrigeration systems have chemical moisture indicators installed in conjunction with the sight glass in the liquid lineIf excess moisture is present in the system, the indicator will （）

  A . activate the driers B . change color C . secure the compressor D . add a predetermined amount of liquid drier

  查看最佳答案

• On a Cisco Aironet 802.11 a/b/g wireless LAN client adapter， the status LED and activity LED arealternating on and off. What does this indicate？（）

  A . The client card is not associated to the network. B . The client card has awakened from power-save mode. C . The driver has been installed incorrectly. D . The client card has failed.

  查看最佳答案

• On a Cisco Aironet 802.11 a/b/g wireless LAN client adapter,the status LED and activity LED arealternating on and off. What does this indicate？（）

  A . The client card is not associated to the network. B . The client card has awakened from power-save mode. C . The driver has been installed incorrectly. D . The client card has failed.

  查看最佳答案

• The Urgency Signal（）indicates that the station calling has a very urgent message to transmit concerning the safety of a ship or aircraft，or of some person on board or within sight.

  A . SOS B . XXX C . TTT D . PAN

  查看最佳答案

• You have berthed in a area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?（）.

  A . A flashing yellow light B . A red light visible all around the horizon C . A green light visible all around the horizon D . An illuminated red and yellow caution flag

  查看最佳答案

• On a cisco aironet 802.11 a/b/g wireless lan client adapter， the status led and activity led are alternating on and off. What does this indicate？（）

  A . the client card is not associated to the network. B . the client card has awakened from power-save mode. C . the driver has been installed incorrectly. D . the client card has failed.

  查看最佳答案

• A petroleum liquid has a flash point of 135°Fahrenheit. This liquid is classed as a grade （）.

  A . B flammable liquid B . C flammable liquid C . D combustible liquid D . E combustible liquid

  查看最佳答案

• A liquid sight flow indicator in a refrigeration system is examined and gas bubbles are noted in motion with the fluid flowThis means （）.

  A . the system is fully charged B . there is air leaking in from the condenser C . ice crystals are forming in the refrigerant D . the system contains less than a full charge of refrigerant

  查看最佳答案

• A sight glass is installed in the liquid line to indicate the condition of the refrigerant charge and may also indicate the （）.

  A . condition of the expansion valve B . moisture in the system C . condition of the compressor suction valves D . condenser temperature

  查看最佳答案

• The tendency of a flammable liquid to vaporize is indicated by its （）.

  A . ignition temperature B . flash point C . flammable range D . convection index

  查看最佳答案

• The temperature （） a liquid changes its state from liquid to gas depends upon the liquid itself and upon the pressure （） it is subjected in the containing vessel.

  A . at which/to which B . from which/at which C . to which/from which D . in which/on which

  查看最佳答案

• “Flooding back” is a condition where the liquid refrigerant （）.

  A . vaporizes in the condenser B . reaches the compressor through the suction line C . flashes in the liquid line D . condenses in the receiver

  查看最佳答案

• A petroleum liquid has a flashpoint of 85℃.This liquid is in IMDG Code classed as a（）.

  A . flammable liquid B . nonflammable liquid C . inflammable liquid D . disflammable liquid

  查看最佳答案

• What is the substance called which can readily be converted from a liquid into a vapor, and also from a vapor into liquid with a reasonably narrow range of pressure?（）

  A . Refrigerator B . Refrigerant C . Cooling medium D . Brine

  查看最佳答案

• Which of the problems listed could be indicated if a sight glass in the refrigerant liquid line is full of bubbles?（）

  A . Proper refrigerant charge B . Faulty expansion valve C . Insufficient refrigerant D . Solenoid valve stuck ope

  查看最佳答案

• On a Cisco Aironet 802.11 a/b/g wireless LAN client adapter，the status LED and activity LED are alternating on and off. What does this indicate？（）

  A . The client card has failed. B . The client card is not associated to the network. C . The driver has been installed incorrectly. D . The client card has awakened from power-save mode.

  查看最佳答案

• The heat used to change a liquid to a vapor is called （）.

  A . latent heat of fusion B . latent heat of vaporization C . specific heat of vaporization D . latent heat of the ga

  查看最佳答案

• In an operating refrigeration system low on refrigerant, a liquid line sight glass will（）

  A . be clear B . be blue C . be light green D . show bubble

  查看最佳答案

• If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is （）.

  A . too much refrigerant in the system B . oil entrained in the refrigerant C . less than a full charge of refrigerant in the system D . ice crystals forming in the refrigerant

  查看最佳答案

• Which indicates a man who is short-sighted in the following idioms?

  查看最佳答案

• 汉译英：“即期汇票；即期信用证；形式发票”，正确的翻译为：（)。A．sight draft; sight L/C; commerci

  汉译英：“即期汇票；即期信用证；形式发票”，正确的翻译为：()。 A．sight draft; sight L/C; commercial invoice B．sight L/C; sight draft; proforma invoice C．sight draft; sight L/C; proforma invoice D．sight L/C; sight draft; commercial invoice

  查看最佳答案

• 汉译英：“即期汇票；即期信用证；形式发票”，正确的翻译为：（)。A．sight draft；sight L/C；commercial

  汉译英：“即期汇票；即期信用证；形式发票”，正确的翻译为：()。 A．sight draft；sight L/C；commercial invoice B．sight L/C；sight draft；proforma invoice C．sight draft；sight L/C；profonma invoice D．sight L/C；sight draft；commercial invoice

  查看最佳答案