Related Questions

A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
A Remain horizontal
B Slant up towards direction of pull
C Slant down towards direction of pull
D None of the above
Which of the following errors cannot be eliminated by taking both face observations ?
A error due to horizontal axis not being perpendicular to the vertical axis
B index error i.e. error due to imperfect adjustment of the vertical circle vernier
C error due to non-parallelism of the axis of telescope level and line of collimation
D none of the above
Which of the following errors can be eliminated by taking mean of bot face observations ?
A error due to imperfect graduations
B error due to eccentricity of verniers
C error due to imperfect adjustment of plate levels
D error due to line of collimation not being perpendicular to horizontal axis
One time measurement unit (TMU) in method time measurement system equals
A 0.0001 minute
B 0.0006 minute
C 0.006 minute
D 0.001 minute
If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is
A 32
B 36
C 4
D None of these
ABC is a triangle where the angle ABC = 96° and AB = BC what is the measurement of the angle ACB?
A 42°
B 45°
C 60°
D 90°
The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of
A Friction
B Limiting friction
C Repose
D Kinematic friction
Which of the following measurement defines a measurement relative to a font’s x-height?
A ex
B em
C pt
D px
Which of the following measurement defines a measurement in centimeters?
A c
B cm
C centi
D centimeter
Which of the following measurement defines a measurement relative to the height of a font in em spaces?
A px
B in
C em
D pt

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