D:-Linear measurements
Correct Answer:- Option-C
Question58:-The image formed by the objective in the plane of crosshairs ‏كا‎
‎A:-Real and straight
B:-Real inverted
C:-Virtual and straight
D:-virtual and inverted
Correct Answer:- Option-B
Question59:-The brightness of the image the magnifying power.
A:-is directly proportional to
B:-is inversely proportional to
C:-varies directly as the square of
D:-varies inversely as the square വ്‌
Correct Answer:- Option-D
Question60:-An angle measured clockwise from the proceeding surveyline to the following surveyline is called

A:-Direct angle
B:-Vertical angle
C:-Horizontal angle
D:-Deflection angle
Correct Answer:- Option-A
Question61:-A twisted bar has about
&:-10%
B:-20%
C:-35%
0-46

Correct Answer:- Option-D
Question62:-In singly reinforced beams, steel reinforcement is provided in

more yield stress than ordinary mild steel bar.

A:-Tensile zone
B:-Compressive zone
:-Both tensile and compressive zone
D:-Neutral zone
Correct Answer:- Option-A
Question63:-The neutral axis of a balanced section is called
A:-Balanced neutral axis
B:-Critical neutral axis
C:-Equivalent neutral axis
D:-All of these
Correct Answer:- Option-B
Question64:-The longitudinal shearing stresses acting ന the surface between the steel and concrete are called

A:-Bond stresses
B:-Tensile stresses
C:-Compressive stresses
D:-None of these
Correct Answer:- Option-A
Question65:-For reinforcing bars in compression, the average bond stress can be increased by

&:-10%
8:-25%
C:-50%
D:-75%
Correct Answer:- Option-B
Question66:-The main advantage of a steel member s that it
A:-has high strength
B:-is gas and water light
C:-has long service life
0:-2॥ of these
Correct Answer:- Option-D
Question67:-For rivet diameters upto 24mm, the diameter of rivet hole is larger than the diameter of rivet by

A:-1Imm
B:-1.5mm