Thiss takehome Exam theyve 10 multiple choice questions Th

** This\'s take-home Exam & they\'ve 10 multiple choice questions. This\'s PTAC 1410-Process Technology I-Equipment 1\'s class (Process Technology). Please, help me to find the answers all of these questions. Thank you so much. **

Q11. The effect of temperature on viscosity is generally that viscosity ……………

(a) Is not affected by temperature

(b) Increases as temperature decrease

(c) Decrease as temperature decrease

(d) Increase as temperature increase

Q12. Which are two dynamic compressors?

(a) Centrifugal and axial

(b) Dynamic and rotary

(c) Rotary and reciprocating

(d) Axial and centronic

Q13. Internal buildup on the surface area of a heat exchanger that results in restriction is referred to as

(a) Fouling

(b) Purging

(c) Plugging

(d) Scale

Q14. A type of steam trap that is controlled by temperature changes is a ………….

(a) Inverted bucket trap

(b) Bellows trap

(c) Float trap

(d) Thermostatic steam trap

Q15. A butterfly valve can be used for …………….

(a) Throttling services

(b) On-off services

(c) Cooling tower water services

(d) All of the above

Q16. The body of the valve contains information referred to as

(a) Manufacturer specification

(b) Valve etchings

(c) Bridge wall plate

(d) Bridge wall marking

Q17. A check valve responds to which of the following scientific principles

(a) Density and viscosity

(b) Fluid flow and gravity

(c) Pressure and temperature

(d) Laminar and turbulent flow

Q18. A device used in a cooling tower to break up and redirect flow of falling water is a ………

(a) Louver

(b) Column

(c) Drift eliminator

(d) Splash bar

Q19. Heat exchangers effectiveness is linked to all of the following except

(a) Differential temperature

(b) Flow rate

(c) Flame strength

(d) Pressure drop

Q20. The type of compressor that uses two helical rotors to compress gas is a

(a) Twin lobe design

(b) Rotary screw

(c) Liquid ring

(d) Piston-V layout

Solution

11) d

generally for the liquids viscosity decreases as temperature increases, for gases vicosity increase with rise of temperature

12) a

13) a

14) d