Atmospheric pressure is equal to____________?
Atmospheric pressure is equal to____________?A. 1.013 bar B. 760mm of Hg C. 101.3KN/m2 D. All of these
Atmospheric pressure is equal to____________?A. 1.013 bar B. 760mm of Hg C. 101.3KN/m2 D. All of these
What is the most common valve used in pig systems to throttle or regulate flow ?A. Globe valve B. Gate valve C. Butterfly valve D. Plug valve
Ball valves are commonly used to_________?A. throttle flow B. check flow C. change flow direction D. start/stop flow
Which tool is used to measure gap size in a rough alignment?A. Inside caliper B. Dial indicator C. Feeler gage D. Measuring tape
The part of the coupling that actually transmits power and rotation from one shaft to the other shaft is_________?A. gap B. hub C. key D. driver
The stress developed in a material at breaking point in extension is called__________?A. Breaking stress B. Fracture stress C. Yield point stress D. Proof stress
Aeroplanes employ following type of compressor_______________? A. radial flowB. axial flow C. centrifugal D. combination of above E. none of the above
Compression efficiency is compared against_____________________? A. ideal compression B. adiabatic compression C. botii isothermal and adiabatic compression D. isentropic compressionE. isothermal compression
An ideal air compressor cycle with clearance on p-v diagram can be represented by following processes_______________? A. one adiabatic, two isobaric, and one constant volumeB. two adiabatic and two isobaric C. two adiabatic, one isobaric and one constant volume, D.…
The work done per unit mass of air in compression will’be least when n is equal to______________? A. 1 B. 1.2 , C. 1.3 D. 1.4 E. 1.5