D:-none of these
Correct Answer:- Option-B
Question29:-The angle of miter line is__ degrees
‏75ھ‎
‎B:-60
‎C:-45
‎D:-30
‎Correct Answer:- Option-C
Question30:-A solid bounded by twelve equal regular pentagon is known as
A:-Octahedron
B:-Tetrahedron
C:-Icosahedron
D:-Dodecahedron
Correct Answer:- Option-D

Question31:-If the smallest division of a Verneir is longer than the smallest division of its primary scale, teh Vernier is known

as
A:-Direct Vernier
B:-Double Verneir
C:-Simple Vernier
D:-Retrograde Vernier
Correct Answer:- Option-D

Question32:-When a chain is used at a temperature more than the temperature it was calibrated the erorr in measured
length will be

A:-Cumulative
B:-Compensative
C:-Negative
D:-Observational error
Correct Answer:- Option-A
Question33:-The length of an Engineer's chain should be
A:-100 ft
B:-66 ft
C:-30 m
D:-20 m
Correct Answer:- Option-A
Question34:-Generally while chaining, the arrow which accompany with one chain must be
A:-3 nos
B:-5 ೧೦5
C:-10 nos
D:-12 nos
Correct Answer:- Option-C
Question35:-The difference between the most probable value of a quantity and its observed value is
A:-Conditional error
B:-True error
C:-Residual error
D:-Safe error
Correct Answer:- Option-C
Question36:-The base line is measured with
A:-Metallic tape
B:-Steel tape
C:-Invar tape
D:-Chain
Correct Answer:- Option-D
Question37:-An offset more than 15 m in length is known as
A:-Long offset
B:-Short offset
C:-Oblique offset
D:-Right-angled offset
Correct Answer:- Option-A
Question38:-Which of the following instruments is used for measurements of angles ?