Engineering, 06.04.2021 03:40 jhanes1983
10. Technician A says that the powertrain control module (PCM) uses the manifold absolute pressure (MAP) sensor to determine the load on the engine and the
amount of fuel needed. Technician B says that, at idle, the MAP sensor voltage will be higher at high altitudes than when at sea level. Who is correct?
O A. Technician A
O B. Technician B
O C. Both Technicians A and B
OD. Neither Technician A nor B
Answers: 1
Engineering, 03.07.2019 14:10
The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite
Answers: 3
Engineering, 04.07.2019 18:10
Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
Answers: 1
Engineering, 04.07.2019 18:20
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Engineering, 04.07.2019 19:10
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
Answers: 3
10. Technician A says that the powertrain control module (PCM) uses the manifold absolute pressure (...
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
English, 15.05.2021 01:00
Biology, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00
Mathematics, 15.05.2021 01:00