On a split$-$type heat pump system, the larger field$-$installed line carries

A$.$ high$-$pressure liquid in the cooling mode and highpressure gas in the heating mode.

B$.$ high$-$pressure gas in the cooling mode and low$-$pressure gas in the heating mode.

C$.$ high$-$pressure gas in the heating mode and low$-$pressure gas in the cooling mode.

D$.$ high$-$pressure liquid in the heating mode and lowpressure gas in the cooling mode.

On ductless split$-$type heat pump system, which of the following statements is true regarding the field$-$installed refrigerant lines if the system is operating in the heating mode?

A$.$ The larger line will contain low$-$pressure, low$-$temperature vapor.

B$.$ The larger line will contain high$-$pressure, high$-$temperature vapor.

C$.$ The smaller line will contain high$-$pressure, high$-$temperature vapor.

D$.$ The smaller line will contain low$-$pressure, low$-$temperature vapor.

What device is often used in conjunction with a thermostatic expansion valve that allows refrigerant to flow in the opposite direction, bypassing the valve's needle and seat assembly?

A$.$ Bypass valve

B$.$ Biflow valve

C$.$ Counterflow valve

D$.$ Check valve

Which of the following metering devices has no moving parts?

A$.$ Capillary tube

B$.$ Piston

C$.$ Electronic expansion valve

D$.$ Thermostatic expansion valve

The filter drier that operates as two filter driers in one casing to filter refrigerant flowing in either direction is called the

A$.$ bypass filter drier.

B$,$ biflow filter drier.

C$.$ counterflow filter drier.

D$,$ check$-$type filter drier.

$13.$ As an inverter$-$controlled compressor speeds up

A$,$ the suction pressure and the discharge pressure drop.

B$,$ the suction pressure and the discharge pressure rise.

C$.$ the suction pressure rises and the discharge pressure drops.

D$.$ the suction pressure drops and the discharge pressure rises.