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What is the name of the wooden plank or slab of concrete or stone usually provided at the bottom of an entrance door?

What is the name of the wooden plank or slab of concrete or stone usually provided at the bottom of an entrance door? Correct Answer Threshold

Concept:

Parts of a door:

  1. Jamb: These are the vertical components on each side of a door to which the doors get fastened to the frame with the help of screws or nails.
  2. Sill: Sill is the bottom component of a door frame. It the part of the door that gets sealed and fastened to the floor.
  3. Threshold: It is the protective cap that covers the sill.
  4. Casing: Casing trim is designed to hide the gaps between a window or door frame and the surface of the interior wall.
  5. Frame: Side jambs, head jambs, and mulls are the parts that make up the frame.
  6. Mull: The line between the two pieces of a door or window is called mull (or mullion).

Additional Information

  • Cornice: It is the decorated portion provided at top of the wall to protect the wall face.
  • Reveal: The outer side of the door frame is called the reveal.

Related Questions

A wooden block is kept on a polished wooden plank and the inclination of the plank is gradually increased. It is found that the block starts slipping when the plank makes an angle of 18° with the horizontal. However, once started the block can continue with uniform speed if the inclination is reduced to 15°. Find the coefficient of static friction between the block and the plank.
A wooden block is kept on a polished wooden plank and the inclination of the plank is gradually increased. It is found that the block starts slipping when the plank makes an angle of 18° with the horizontal. However, once started the block can continue with uniform speed if the inclination is reduced to 15°. Find the coefficient of kinetic friction between the block and the plank.
Which of the following statements are correct regarding Westergard’s concept for temperature stresses? 1. During the day, the top of the pavement slab gets heated under the sunlight when the bottom of the slab becomes hot 2. During summer season as the mean temperature of the slab increases, the concrete pavement expands towards the expansion joints 3. Due to frictional force at the interface, compressive stress is developed at the bottom of the slab as it tends to expand.
In counterfort type retaining walls
i) the vertical slab is designed as a continuous slab
ii) the heel slab is designed as a continuous slab
iii) the vertical slab is designed as a cantilever
iv) the heel slab is designed as a cantilever
The correct answer is
A rectangular plank $$\sqrt 2 $$ metre wide is placed symmetrically on the diagonal of a square of side 8 metres as shown in the figure. The area of the plank is :
Area mcq question image
In the question below are given four statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: All Stone are Hammer. No Hammer is a Bell. Some Bell are Door. All Door are Window. Conclusions: I. Some Window are Stone. II. Some Window are Bell. III. No window is a stone. IV. Some Bell are Stone.
There are two huts of two brothers each on the opposites sides of a medium sized pond. Each brother has to use 12 stones in the pond to visit each other’s hut by crossing the pond. These stones are numbered serially using numbers one to twelve. A dragon fly is jumping on these stones as follows; every minute it jumps to the fifth stone from where it started. Thus if it jumps from the fourth stone it would go to the ninth stone, from the ninth stone it would go to the second stone and so on. Select the option that indicates the number of stones on which this dragon fly would be resting if it stops jumping at the 36th minute if it starts jumping from the stone that is numbered two.
Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should admission to all professional courses be made on the basis of past academic performance rather than through entrance tests? Arguments : I. Yes. It will be beneficial for those candidates who are unable to bear the expenses of entrance tests. II. Yes. Many deserving candidates securing high marks in their qualifying academic examinations do not perform well on such entrance tests. III. No. The standard of examinations and assessment conducted by different Boards and universities are not comparable and hence there is a need to conduct entrance tests to calibrate them on a common yardstick.
Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument.

Statement : Should admission to all professional courses be made on the basis of past academic performance rather than through entrance tests?

Arguments :
I. Yes. It will be beneficial for those candidates who are unable to bear the expenses of entrance tests.
II. Yes. Many deserving candidates securing high marks in their qualifying academic examinations do not perform well on such entrance tests.
III. No. The standard of examinations and assessment conducted by different Boards and universities are not comparable and hence there is a need to conduct entrance tests to calibrate them on a common yardstick.
Applying a force of 5 newtons on a wooden plank with mass m1 kg, it accelerates with an acceleration of 10 ms-2. Another plank of mass m2 kg accelerates with an acceleration of 20 ms-2 when the same force is applied. If both the planks are tied with each other and the same force is applied on them, what will be the acceleration?