42,

43.

44,

45.

46.

47.

48.

49.

The standard size of A2 drawing sheet in mm is :
(^) 841 > 1189 (B) 297: 420
(0. 397% 420 (D) 420 % 594

A level surface is a

(५) Horizontal surface tangential to the mean earth surface
(B) Horizontal surface perpendicular to the plumb line
(0) Curved surface parallel to the mean spheroidal surface of the earth

(D) Surface which includes the plane of plumb line .

Final setting time of ordinary Portland cement should not be more than :
(A) 30 minute (B) 15 hour
(C) 1 hour (D) 10 hour

The instrument used for setting out perpendicular offsets is :
(A) Levelling staff (B) Clinometer
(C) Cross staff (D) Target staff

Convert the quadrantal bearing S 69°30' E in to whole circle bearing :
(4) 249° 30 (B) 69°30
(0). 110 80 (D) None of the above

The Instrument having common disc for measuring both vertical and horizontal angle is :
(A) Sextant (B) Theodolite

(C) Surveyors compass (D) Prismatic compass

For a well-conditioned triangle the angle should be in between :
(ക 90°and 180° (8) 0°and 45°
(0) 80" 874 120° (D) 45° and 150°

The curved-triangular space formed between the extrados and horizontal line through the
crown in an arch :

(4) ४०५88018 (B) Spandril
(©) Skew back (D) Soffit

53/2015 8 . A