Male gametophyte in angiosperm is represented by
Male gametophyte in angiosperm is represented by Option 1 : AntherOption 2 : AndroeciumOption 3 : MicrosporangiumOption 4 : Pollen grain
Male gametophyte in angiosperm is represented by Read More »
September 2023
A 0.5 m × 0.5 m square concrete pile is to be driven in a homogeneous clayey soil having undrained shear strength
Q. A 0.5 m × 0.5 m square concrete pile is to be driven in a homogeneous clayey soil having undrained shear strength, cu = 50 kPa and unit weight, γ = 18.0 kN/m3. The design capacity of the pile is 500 kN. The adhesion factor α is given as 0.75. The length of the
Pollen grains are
Pollen grains are Option 1 : Microspore tetradOption 2 : Dehydrated microsporesOption 3 : Megaspore tetradOption 4 : Pollen mother cells
The figure shows a simply supported beam PQ of uniform flexural rigidity EI carrying two moments M and 2M
Q. The figure shows a simply supported beam PQ of uniform flexural rigidity EI carrying two moments M and 2M. The slope at P will be (A) 0 (B) ML/(9EI) (C) ML/(6EI) (D) ML/(3EI) Ans: ML/(6EI) Sol:
A plate in equilibrium is subjected to uniform stresses along its edges with magnitude 𝜎𝑥𝑥 = 30 MPa
Q. A plate in equilibrium is subjected to uniform stresses along its edges with magnitude 𝜎𝑥𝑥 = 30 MPa and 𝜎𝑦𝑦 = 50 MPa as shown in the figure The Young’s modulus of the material is 2×1011 N/m2 and the Poisson’s ratio is 0.3. If 𝜎𝑧𝑧 is negligibly small and assumed to be zero, then
Which type of cell division occurs in the cell of sporogenous tissue to form microspore?
Which type of cell division occurs in the cell of sporogenous tissue to form microspore? Option 1 : Reduction divisionOption 2 : Equational divisionOption 3 : AmitosisOption 4 : Both (a) and (b)
Which type of cell division occurs in the cell of sporogenous tissue to form microspore? Read More »
Formation of pollen from pollen mother cell is referred to as
Formation of pollen from pollen mother cell is referred to as Option 1 : PollenogenesisOption 2 : MegasporogenesisOption 3 : MicrosporogenesisOption 4 : Ovulation
Formation of pollen from pollen mother cell is referred to as Read More »
A cylinder of radius 250 mm and weight, W = 10 kN is rolled up an obstacle of height 50 mm by applying a
Q. A cylinder of radius 250 mm and weight, W = 10 kN is rolled up an obstacle of height 50 mm by applying a horizontal force P at its centre as shown in the figure. All interfaces are assumed frictionless. The minimum value of P is (A) 4.5 kN (B) 5.0 kN (C) 6.0
Sporogenous tissue of microsporangia is
Sporogenous tissue of microsporangia is Option 1 : Groups of compactly arranges homogenous cellsOption 2 : Occupies the centre of microsporangiumOption 3 : Present inside young antherOption 4 : All the above
A cantilever beam of length 2 m with a square section of side length 0.1 m is loaded vertically at the free end
Q. A cantilever beam of length 2 m with a square section of side length 0.1 m is loaded vertically at the free end. The vertical displacement at the free end is 5 mm. The beam is made of steel with Young’s modulus of 2.0×1011 N/m2. The maximum bending stress at the fixed end of