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Херсонский государственный университет
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[НЕСОРТИРОВАННОЕ]
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4 курс 2 модуль 1 варіант.docx
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Smart Control

Stop and Check

Module 2 Refrigeration Plant

Variant 1

Name _________________________________ Group _______________ Date __________

Points 100/_________

Vocabulary

  1. Match the words with proper definitions

a/ melting point; b/connecting rod; c/ fin; d/ equalized valve; e/ suction strainer;

f/ sublimation; g/ magnet box; h/ oil spirals; i/ diaphragm; j/ thermodynamics

  1. The process of changing a solid substance to a gas by heating it and then changing it back to a solid in order to make it pure –

  2. A projecting rib used to dissipate heat from the surface of casing or radiator –

  3. The branch of science that deals with the relationship between heat and power and with the turning one into the other –

  4. Some arrangement through which compressor’s crankshaft is lubricated –

  5. A valve intended to maintain a constant degree of superheating and full vaporization of the liquid –

  6. The temperature at which a particular solid melts –

  7. A thin disk that divides or separates –

  8. An instrument of netlike material in the shape of a small bowl which keeps back solids from refrigerant is –

  9. A rod that joins two moving parts in any type of machinery –

  10. A piece of metal fitted inside the strainer basket to collect any metallic fragments which may enter –

___ / 10

  1. Choose the proper word to fill in gap

  1. To slow down ___ of bananas during transportation – cooling systems are used on reefers.

a/ processing

b/ ripening

c/ conditioning

  1. By the intention these both types act as giant ___ .

a/ holds

b/ accomodations

c/ thermoses

  1. The saturation pressure equivalent to the critical temperature is a ___ pressure.

a/ boiling

b/ expansion

c/ critical

  1. Insulation barriers are ___ in gas tanks.

a/ bulkheads

b/ cofferdams

c/ membranes

  1. There is no ___ phase in process of dry ice sublimation

a/ dry

b/ evaporation

c/ liquid

  1. Expansion valve causes high pressure ___ .

a/ rise

b/ drop

c/ fluctuation

  1. When refrigerant passes through the expansion valve it ___ .

a/ expands

b/ contracts

c/ condenses

  1. The condenser in refrigeration plant is a heat exchanger used to transfer heat from the refrigerant to the ___ air or water.

a/ cold

b/ ambient

c/ hot

  1. Thermostatic expansion valves are designed to be used as a ___ іn all expansion refrigeration systems.

a/ actuator

b/ receiver

c/ regulator

  1. The resulting refrigerant vapor returns to the compressor inlet at point 1 to complete the ___ cycle.

a/ thermodynamic

b/ thermoelectric

c/ thermal

  1. Insulation is used to ___ the work and energy required to achieve and maintain a lower temperature in the cooled space.

a/ provide

b/ reduce

c/ restrict

  1. In thermoelectric refrigeration heat ___ is created between the junctions of two different types of materials.

a/ flux

b/ store

c/ layer

  1. The ___ in refrigeration plant is a heat exchanger used to transfer heat from the air of a refrigerated space to the refrigerant.

a/ compressor

b/ refrigerant

c/ liquid

  1. Moss type is special ___ tanks produced from aluminum and nickel steel.

a/ membrane

b/ heat-reistant

c/ spherical

  1. The superheated vapor travels through the condenser which first cools and removes the ___ and then condenses the vapor into a liquid.

a/ superheat

b/ condensate

c/ vapour

___ / 15

Grammar

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