Related Questions

A ladder is resting against a vertical wall and its bottom is 2.5 m away from the wall. If it slips 0.8 m down the wall, then its bottom will move away from the wall by 1.4 m. What is the length of the ladder?
A 6.2 m
B 6.5 m
C 6.8 m
D \7.5 m
The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is
A 1.5
B 1
C $$\sqrt 2 $$
D None of these
For earthquake resistant masonry buildings, the vertical distance between openings one above the other in a load bearing wall shall not be less than
A 50 cm
B 60 cm
C 75 cm
D 100 cm
Exposed portions of vertical surface at right angles to the door or window frame, are known as
A Jambs
B Lintels
C Reveals
D Soffits
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.
A $$\frac{{\text{H}}}{3}$$
B $$\frac{{\text{H}}}{2}$$
C $$\frac{{2{\text{H}}}}{3}$$
D $$\frac{{3{\text{H}}}}{4}$$
The vertical faces of a door opening which support frame of the door, are
A Jambs
B Posts
C Reveals
D Styles
Compensation against openings in process vessels for giving inlet and outlet connections, for providing sight glasses and manholes etc. is provided for strength and rigidity. The most efficient type of compensation is of __________ type.
A Nozzle or rim
B Flared out
C Fluid in
D Ring plate
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. Which of the following statement is correct?
A The pressure on the wall at the liquid level is minimum
B The pressure on the bottom of the wall is maximum
C The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum
D The pressure on the bottom of the wall is zero
When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
A Sum
B Difference
C Arithmetic mean
D Geometric mean
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is
A 0.25
B 0.50
C 0.75
D 1.0

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