1)4 Q2 D5 Q2 f$ W. o. K
Which of the following is fully killed steel?7 h0 d" A8 M% E; f
) u7 H# r- O [ M, H
a)
! C; U4 P0 b5 x) m! z* |ASTM A 53" O, l' q% D8 E" U2 G! D2 u
b)
, ?2 J `: m8 H/ @+ e. T# g+ mASTM A 106
n) r# ^* F2 rc)
/ y2 D9 n# K; x3 i6 N3 _. P( V3 ^. zASTM A 333
3 @8 G& s7 B" G: sd)
- {7 j4 t' J6 t5 ~All of the above$ L6 p6 b7 K1 F) [# V9 Q& Z
5 K7 N: ^. Y4 e) N* x
Ans. b1 V ^1 [: C8 T* V7 R
+ J; g9 _: l& l8 q& V6 ]' c2)* i" Q9 J9 J% _
What is the mill’s tolerance to be considered for the thickness calculation of smls pipe as per ASME B31.3$ c; u# D9 q! B! z
a)
. K0 p6 v' x' |- B+ u12
0 i& ?; w' x3 y4 h4 ^b)
' K# O- W* ~+ X& p5 F, L12.25
9 T4 s4 a/ z7 U( B+ l, K' r+ oc)5 h9 j. x& h3 A( G# m+ h
12.5
2 L$ ~) y7 J% l; [d)
7 X/ p* a* j6 b4 l: s) kNone of the above5 `! f* `" v5 D& b" Z4 j
. P* J5 k0 B0 e* b
Ans. c% P9 j4 G, D: p/ F: y0 v. |: p
; _( O/ }6 n% ~- S2 v9 x5 Q3)
! D s3 q$ y0 {- T, D, I8 _5 W: D9 a6 W( Q
Butt welded fittings (upto 600#) are generally used in which Size range6 \ T8 h$ X* Y: d: s
a)+ E. s* X$ e0 g' D/ ~: M L& I) J$ t
11/2” & above
: A3 t& G8 A& R2 z J3 {b)$ P& }: \5 w: F, g/ V
2” & above
, O/ e' B. I- W( g% hc)
) @( ?0 q7 [$ I# |6 L; bBoth a & b) K9 l3 _* P( e% G
d)
5 e5 J5 L: T; V) r% H0 P! K5 CNone of the above7 T) ?/ O5 k! t
" P3 b; N5 v' _4 Q l" G% {Ans. b
# X6 V o* Q a2 J! B$ Z' ]8 I
, x0 j# [8 u0 P6 w, l3 D9 i2 Q4)
5 r4 G$ v3 Q# nASME B16.10 describes about ; p' x7 v) O$ ~ J j: k
a)
+ t1 V/ f$ u2 o+ \( f. j8 L# uFace to face & end to end dimensions of non-ferrous valves3 `, A4 a5 X1 o& S0 C& ]5 F; _
b)& F) w5 I$ |! d9 {
Face to face & end to end dimensions of ferrous valves
, M; i) S9 s; [. ac): z! C' M. z5 K0 e: v- _, x- C
Both a & b
. H% @5 \$ }0 E% c" N( t' g8 Yd)
. {% t# W5 N: Y7 @6 q7 a1 ZNone of the above
1 H4 m4 V4 m4 [2 k0 n" v7 k9 F( ]
+ C: K, D: D" ~% P" e* \Ans. b
* _" S) d: a3 {8 V( l8 a$ S 4 T; v9 p& d3 l) P9 c7 A
5) ASTM Std. for 6” C.S welded pipe is1 K' r( j% E5 [) m0 i3 l" |
a) A106 Gr.B# S9 a) J2 m4 E. s' u0 F; [: J
b) A53 Gr.B
7 h' L! X. {; U# L& C5 W) wc) API 5L Gr.B
9 \3 i% j$ f2 s7 D a2 zd)All of the above
! Z! |% ]$ P8 r7 _1 p9 ^: K1 K8 E. w$ o( f; v0 b- j/ m0 U' ?
Ans. b5 a" J$ q5 L& C3 D W
6 @! s% I A+ O* e0 M7 _
6) ASTM Std. for 8” C.S 150# flange
' w1 Y6 G# P$ l8 f+ P5 y! oa) A234Gr WPB
9 r7 v4 v7 b, w, mb) A216Gr WCB
0 c% c) L+ y' J: \- h, J8 N+ vc) A1055 {9 I0 e7 n( l. j! S9 d# }
d) None of the above- o% I) {2 C9 O: e8 e) W& `
" ^+ C( f+ L" o' t* T K3 S& PAns. c
$ \& ]2 R6 p) X
) _- ^5 ]2 Z$ g
5 z0 |) f/ [# [3 |' _
' X1 V2 t) v5 y/ m# @- x4 O7) Usually the ASTM Std. for 30” L.T.C.S. EFW pipe is
2 e6 d9 J2 T4 P. T( p: D6 aa) A333 Gr.6. C$ T$ ]3 z6 N. b) D. |
b) A106 Gr.B
) l! z, K; A& e; S5 a! [9 Oc) A671 Gr.CC60 Cl.32
, @- B* h; W' \/ @- r: R* R P e! ed) All of the above: ` p5 C# u8 M5 i/ f3 J
, L: c! D- J" e/ s; H
9 v2 L1 F( y j# j
Ans. c
7 b# i8 O+ p4 z& A/ i2 ]
- O/ K# r+ V3 H t6 v 9 S4 X$ n* D( C
8) Which of the fluid Service is non-toxic in nature?8 N4 a J$ K0 T C4 P! n+ a* Q1 @
+ I5 x8 r8 Y' F1 ~a)
! G$ w2 u2 N" b* v+ v3 _* ^, b: h# yCategory D
: D( Z2 S6 d) H4 q8 nb)' \1 L U6 O$ e, g
Category M4 F+ \" F8 [5 V* C5 Y
c)
* z/ W' i. `! t2 n1 c! PHigh Pressure fluid service% I1 T5 D& r# Y+ E4 D; K/ g
d)
8 @6 X5 d+ p) O/ HNormal fluid service# B" o; a* h4 h& O
- \- u2 o5 Q/ k' g) {! q9 x0 o2 b& o: P. @5 c9 d0 B
Ans. a$ G' Y9 _( [0 }* C
- T% u- i: t# \9 ?7 x5 m$ [
7 S7 N7 X# s- e1 N! J
9) All Pipe bends in CS are ____________" h4 F3 B! x# _5 z( J% ^8 r
0 W# ]$ g: W9 i) d# O) @4 Ua)
0 L+ r( j! H9 K/ uhot formed) L4 Q9 m% ~( |& X! M0 V. G
b)4 A* ]6 D/ O, w E" h1 B9 O, Y
cold formed
8 |/ w+ A! t H! Lc)
$ n3 e" |3 d" U6 Mboth a & b
. E4 ~5 i i( V6 j8 H* Id)
3 b9 {6 N. J3 Tnone of the above& r3 z! N8 x4 T$ P0 N5 N
# B8 L; A3 e& z) `+ A+ {
! g" u7 H- x2 [. q
Ans. b( Q: _3 ~4 J; R2 D* }
! u& g d* v D4 `6 D- g
10) What is the Size range in NPS for ASTM A106 Smls.Pipe% U- R+ v& P) G
- W+ _7 O- ?' I" P9 T" Y
* L0 t, U$ K, F& w0 z: q% W& @ d, g& ia)
" S8 @/ i. c( D0 O. t! D6 [# k1/8 to 46
) Z: R$ \* `: H. M; D+ o/ Wb)# H" U$ G7 G$ i; e3 a( f c+ S* ^
1/8 to 44( ?, U/ n2 f6 E1 ^
c)
. U$ X2 J2 x3 V& n- U5 c$ D: @1/8 to 48
: X' k( G3 Y1 v% I& _1 md)' M9 f4 v: f. L9 A/ Q
None of the above" ]8 E. }/ ?0 S9 |' G
3 L9 g1 b! n+ O1 T- @% m
% x" T) C6 g& K# a, U: z
/ s; | F; @" ]; x' uAns. c- p7 ]! ^9 t) a5 h
% N3 d; d) ~# i2 l3 F: U% B5 L! @11) What is the dmn.std. for S.B. gate valve?
: a" R7 O2 U) ]* N " Q6 E Z, B0 R+ |0 p' B+ E
a)1 x" C7 s' T! c f; A
API-602
7 K9 f4 K% T5 n& Jb)* P1 G3 e6 O8 `, M" c1 w
API-600 |( D: f) b5 `4 Z8 { T
c)0 R! b4 D6 Y- P4 p! s
API-609+ _ U* |+ _: w
d)
9 X+ x( H8 p8 w4 Z( `None of the above) |5 _( d$ P! {) `
" k, V6 }$ W" S' {7 f+ ~6 {( Q8 J, J& t# G) C0 W
Ans. a" F- S0 I5 a5 J7 e
3 E/ s3 o6 W, [. h6 t: j12) What is the dmn.std. for L.B. gate valve?% A7 _6 t) b1 B* j6 R5 N- {. b
- u4 c$ m0 W& z9 m4 G" ~7 ga)
9 S4 e& }$ G' e1 p8 vAPI-602. L+ \( J6 `% X2 M% T6 E9 Z' i
b)" v% N4 B5 u# F; _: a
API-600
+ U! B+ I# i8 ~9 D0 j% ]7 zc)
6 Q7 [8 Y2 w5 U' J% |API-6092 j1 q( v9 O) ?, ^2 D6 }
d)
; K; U2 n# k9 Y2 I' VNone of the above
" D$ ]/ I$ L+ C, I 6 L m7 m+ x# Q: G, y& ?
2 M* t2 d( W5 ~0 i. q6 S( r; yAns. b* Q9 L& P7 Z0 p0 U
7 h( ]: Q8 U+ h( o5 h7 J& K4 Z
13) What is the dmn.std. for S.B.9 F" [* w. \4 V
globe valve?
, y6 ?: M6 ^4 ~4 c% z6 a2 ~* E1 V; B8 e7 ~& o4 k4 F9 o
5 r" _. ?/ y0 T' Ja)
- ]: a5 t& }6 Q( }4 gBS-5351
; U/ ^7 i5 w( ^1 y1 Pb)
. \; b# x5 W0 d: a8 W( CBS-53528 U6 M* s% [; H2 A
c), M/ }- f. b- ~5 {0 \6 M- C" _3 ^+ h
BS-1873
/ U1 D, H! V5 ?' A; w. j% ?d), v* s: C( q) s: {
API-602* ]1 ?% ]' I8 i
5 z/ U3 ]3 {' Q/ D; ^7 _( V
9 m. k) A% J' k- M. \" m
0 C+ f1 ]0 X- wAns. b
2 I7 K. ^- `7 d o
7 \ X* w' u/ z( Z* J2 w+ o4 ~7 f
& d" @8 t( v; P( V5 }, G
' D+ J5 R& i" {8 B& A
. ]; @4 g* {; N- q- Y. E7 b
* H1 s" F v$ K4 F% t/ p9 H 6 G# }2 P% n9 z4 {0 c- [
14) What is the dmn.std. for L.B.1 p" p- p/ t8 R9 b- u
globe valve?/ X+ j! E3 ~- L& D& w" X
( I/ R, i# `& Q6 D( |! N8 O' D: s" u/ l3 P/ Z9 H" m
a)
1 C4 A. T3 N# }( C- VBS-5351
3 I! u" d0 c* {7 u) u* q$ a- l, mb)3 r8 u" o" h X/ e3 J, F5 u- ~0 ]( v
BS-5352
% ?) @, s- \1 r4 w* o, bc)
1 o+ V. X" w, U2 LBS-1873
M r8 N- P3 _9 j3 Z% Cd); n8 E# k$ S6 N& r% S& s
API-602) I4 A: M4 W/ h+ N) e) n7 T
4 g4 V# m" p9 ]+ c$ E' l- b
3 ^' c7 c7 O" O: nAns. c
6 f: v- h( ~) g$ g3 r$ R
: K0 f: x& X% e, I9 z- \
) X, N* T8 Z$ p5 d
! ~7 k# }0 y4 `
' M, W0 K% x# R) o15) What is the dmn.std. for check valve?
' k; p6 a: M( K& E
. Y, b1 F; O/ T/ E2 @8 ?" va)
j$ g) i! [. x( e/ `' h h M" qBS-5352
5 i. N* {# Z& B0 `1 wb)
1 D v0 T9 `4 N/ G7 D6 b5 G l) d1 GBS-18681 y* `2 V5 ~: [' d3 k- M+ r6 q
c)- S# P2 T, H- ?* F( I8 i" C5 [
BS-1873
+ A4 F) E! s2 y; id)
( ~; i- f# A! R. e8 e0 [Both a & b
+ P4 u$ o0 G: l8 ^2 _6 N 0 e2 v$ O! \* h! k5 Y* ~' y' j" N
) ^! C: D: w' Q6 P$ t, _8 a8 c
5 m6 B2 [1 n2 M; Q# Q7 q( c5 s/ _* J8 E3 F& O, P
; i5 U3 D7 j, f: k& l4 O" s0 uAns. d
. q w' J& s) ?- Q1 L
, `7 v% [$ H J+ e. ?- B9 z0 r3 a& v+ V+ }0 G+ a& f) U
, o7 I2 Q* I+ n R8 n9 x
' W9 v4 u+ E) S+ c1 y5 q6 _% t6 e |
狗仔卡
提升卡
置顶卡
沉默卡
变色卡