Which statement is characteristic of a communist system? Choose four answers. The government controls the means of production. Prices and wages are set by supply and demand. The government regulates a centrally planned economy. Entrepreneurs are encouraged to take risks. Prices and wages are set by the government. Businesses are free to follow their own best interests. A single authoritarian party holds complete power.

Technician a says that in a fully charged orifice-tube system, the accumulator 3.temperature will be higher than the orifice tube temperature. technician b says that in a properly operating air-conditioning system, the inlet to the compressor should be cool and the outlet from the compressor hot. who is correct? a. technician b b. technician a c. neither technicians a nor b d. both technicians a and b 4. it's 90 °f in the shop with high humidity. what pressure will be shown on the high-side pressure gauge (ac system on)? a. at least 350 psi b. 10 to 50 psi c. 210 to 290 psi d. 40 to 140 psi 5. technician a says that leaking components are usually repaired rather than replaced. technician b says that a replacement o-ring can take care of a leak found at a joint. who is correct? a. technician a b. neither technician a nor b c. both technicians a and b d. technician b 12. technician a says that a system should be recharged with refrigerant until the condenser temperature is equal to the ambient temperature plus 100°f. technician b says that a system should be recharged with the type and amount of refrigerant found on the vehicle's under-hood sticker. who is correct? a. both technicians a and b b. technician b c. technician a d. neither technician a nor b 14. the majority of heat that the cooling system receives from the engine is a. recycled back to the engine. b. wasted. c. directed to the passenger interior. d contaminated air. 18. a schrader valve is able to open only when a. the service cap is removed. b. a special tool is used to disconnect the valve. c. the system has been evacuated. d. an internal depressor seals the connection 19. two technicians are discussing recycling specifications for refrigerant. technician a says that refrigerant oil with 5,000 parts per million (ppm) does not fall within specifications. technician b says that air can only have a maximum of 330 ppm. who is correct? a. both technicians a and b b. technician b c. neither technicians a and b d. technician a 20. two technicians are discussing refrigerant removal. technician a says that all refrigerant must be captured. technician b says that you can vent refrigerant into the atmosphere as long as it contains moisture. who is correct? a. neither technician a nor b b. technician a c. technician b d. both technicians a and b

Of four agents alpha, beta, gamma anddelta, three have to be sent together on amission. if alpha and beta cannot gotogether, beta and gamma cannot go togetherand gamma and delta cannot go together,then which of the following holds? 1. any three agents can be sent.2. alpha, delta and any one out of beta andv gamma can be sent.3. beta, gamma and any one out of alphaand delta can be sent.4. the mission is impossible.

This graph represents four ecosystems. each ecosystem has a different number of species, adding to its biodiversity. different colors represent different species. which statements correctly summarize the data depicted by the graph? 1. ecosystem d has more biodiversity than ecosystem c. 2. ecosystem b has more biodiversity than all the other ecosystems. 3. ecosystem a has more biodiversity than ecosystem b but less biodiversity than ecosystem c. 4. ecosystem b has more biodiversity than ecosystems c and d but less biodiversity than ecosystem a. 5. ecosystem a has more biodiversity than ecosystem c but less biodiversity than ecosystem b.