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TRB MODEL QUESTIONS FOR MATHS

TRB Model Questions
11. The units of work in the F.P.S. system is
 
  • A. foot
  • B. pound
  • C. foot–poundal
  • D. joule
 
12. The least upper bound of the set{1, 2, ........... 20}
 
  • A. 1
  • B. 0
  • C. 20
  • D. 21
 
 
13. The locus of centre of curvature of a given curve is called an
 
  • A. evolute
  • B. envelope
  • C. involute
  • D. asymptote
 
14. The length of latus rectum of the parabola is
 
  • A. a
  • B. a/2
  • C. 2a
  • D. 4a
 
15. If A and B are symmetric matrices then a + B is
 
  • A. unit matrix
  • B. diagonal matrix
  • C. skew matrix
  • D. symmetric