4th Class Power Engineering Unit A7:
g8 g8 g8 g8 g8 g
Introductory Fluid Handling Technolo
8 g8 g8 g8
gy
Theg8materialg8designationg8ofg8ag8valve:
Selectg8one:
a.g8givesg8whereg8theg8materialg8isg8used
b.g8tellsg8whatg8materialg8makesg8upg8theg8valve
c.g8givesg8theg8temperatureg8tog8whichg8theg8valveg8cang8beg8subjected
d.g8tellsg8whatg8theg8materialg8isg8suitedg8forg8-g8correctg8answer✔ ✔ b
Pipeg8hangersg8areg8installedg8atg8threeg8metreg8intervalsg8to:
Selectg8one:
a.g8aligng8theg8pipe,g8keepg8theg8pipeg8outg8ofg8theg8wayg8ofg8footg8traffic
b.g8provideg8ag8properg8drainageg8slope,g8aligng8theg8pipe,g8allowg8freeg8move
mentg8forg8pipeg8expansiong8
c.g8provideg8ag8properg8drainageg8slope,g8preventg8leaks
d.g8keepg8theg8pipeg8outg8ofg8theg8wayg8ofg8footg8trafficg8-g8correctg8answer✔
✔ b
Theg8maximumg8temperature,g8whichg8ag8non-
specialg8alloyg8steelg8valveg8cang8beg8usedg8forg8is:
,Selectg8one:
a.g8280g80C
b.g8425g80C
c.g8650g80Cg8
d.g81,000g80Cg8-g8correctg8answer✔ ✔ c
Beforeg8admittingg8anyg8steamg8tog8ag8steamg8pipingg8systemg8itg8isg8imperativ
eg8tog8first:
Selectg8one:
a.g8warmg8theg8lineg8upg8properly
b.g8positivelyg8ensureg8thatg8nog8waterg8org8condensateg8existsg8ing8theg8piping
c.g8crackg8openg8theg8steamg8valve
d.g8ensureg8theg8steamg8pressureg8isg8atg8maximumg8valueg8allowedg8withoutg8t
heg8boilerg8safetyg8valveg8openingg8-g8correctg8answer✔ ✔ b
Ag8basicg8ballg8valveg8mustg8beg8turnedg8thisg8farg8tog8gog8fromg8ag8fullyg8closed
g8tog8ag8fullyg8openg8position:
Selectg8one:
a.g81g8fullg8turn
b.g83⁄4g8ofg8ag8turn
c.g81⁄2g8ofg8ag8turn
, d.g81⁄4g8ofg8ag8turng8-g8correctg8answer✔ ✔ d
Weldingg8togetherg8pipeg8sizeg8ofg8twog8inchg8nominalg8sizeg8andg8smallerg8isg8
usuallyg8doneg8by:
Selectg8one:
a.g8theg8oxygen-acetyleneg8method
b.g8theg8socketg8weldedg8methodg8
c.g8theg8buttg8weldedg8method
d.g8non-pressureg8weldersg8-g8correctg8answer✔ ✔ b
Youg8wouldg8useg8thisg8typeg8ofg8valveg8whereg8thereg8isg8veryg8littleg8roomg8be
tweeng8theg8handleg8andg8ag8fixedg8surface:g8
Selectg8one:
a.g8ag8non-risingg8stemg8valveg8
b.g8ag8checkg8valve
c.g8ag8ballg8valve
d.g8ag8safetyg8valveg8-g8correctg8answer✔ ✔ a
Improperg8drainageg8ofg8steamg8linesg8could:
Selectg8one:
a.g8resultg8ing8excessiveg8steamg8pressures
g8 g8 g8 g8 g8 g
Introductory Fluid Handling Technolo
8 g8 g8 g8
gy
Theg8materialg8designationg8ofg8ag8valve:
Selectg8one:
a.g8givesg8whereg8theg8materialg8isg8used
b.g8tellsg8whatg8materialg8makesg8upg8theg8valve
c.g8givesg8theg8temperatureg8tog8whichg8theg8valveg8cang8beg8subjected
d.g8tellsg8whatg8theg8materialg8isg8suitedg8forg8-g8correctg8answer✔ ✔ b
Pipeg8hangersg8areg8installedg8atg8threeg8metreg8intervalsg8to:
Selectg8one:
a.g8aligng8theg8pipe,g8keepg8theg8pipeg8outg8ofg8theg8wayg8ofg8footg8traffic
b.g8provideg8ag8properg8drainageg8slope,g8aligng8theg8pipe,g8allowg8freeg8move
mentg8forg8pipeg8expansiong8
c.g8provideg8ag8properg8drainageg8slope,g8preventg8leaks
d.g8keepg8theg8pipeg8outg8ofg8theg8wayg8ofg8footg8trafficg8-g8correctg8answer✔
✔ b
Theg8maximumg8temperature,g8whichg8ag8non-
specialg8alloyg8steelg8valveg8cang8beg8usedg8forg8is:
,Selectg8one:
a.g8280g80C
b.g8425g80C
c.g8650g80Cg8
d.g81,000g80Cg8-g8correctg8answer✔ ✔ c
Beforeg8admittingg8anyg8steamg8tog8ag8steamg8pipingg8systemg8itg8isg8imperativ
eg8tog8first:
Selectg8one:
a.g8warmg8theg8lineg8upg8properly
b.g8positivelyg8ensureg8thatg8nog8waterg8org8condensateg8existsg8ing8theg8piping
c.g8crackg8openg8theg8steamg8valve
d.g8ensureg8theg8steamg8pressureg8isg8atg8maximumg8valueg8allowedg8withoutg8t
heg8boilerg8safetyg8valveg8openingg8-g8correctg8answer✔ ✔ b
Ag8basicg8ballg8valveg8mustg8beg8turnedg8thisg8farg8tog8gog8fromg8ag8fullyg8closed
g8tog8ag8fullyg8openg8position:
Selectg8one:
a.g81g8fullg8turn
b.g83⁄4g8ofg8ag8turn
c.g81⁄2g8ofg8ag8turn
, d.g81⁄4g8ofg8ag8turng8-g8correctg8answer✔ ✔ d
Weldingg8togetherg8pipeg8sizeg8ofg8twog8inchg8nominalg8sizeg8andg8smallerg8isg8
usuallyg8doneg8by:
Selectg8one:
a.g8theg8oxygen-acetyleneg8method
b.g8theg8socketg8weldedg8methodg8
c.g8theg8buttg8weldedg8method
d.g8non-pressureg8weldersg8-g8correctg8answer✔ ✔ b
Youg8wouldg8useg8thisg8typeg8ofg8valveg8whereg8thereg8isg8veryg8littleg8roomg8be
tweeng8theg8handleg8andg8ag8fixedg8surface:g8
Selectg8one:
a.g8ag8non-risingg8stemg8valveg8
b.g8ag8checkg8valve
c.g8ag8ballg8valve
d.g8ag8safetyg8valveg8-g8correctg8answer✔ ✔ a
Improperg8drainageg8ofg8steamg8linesg8could:
Selectg8one:
a.g8resultg8ing8excessiveg8steamg8pressures
