Biomedical Engineering Gate 2025 Questions with Answer
Ques 1 GATE 2025
96C and 106C are ______ whereas 96C and 85B are ______
Ques 2 GATE 2025
In the context of temperature sensitive polymers, LCST stands for
Ques 3 GATE 2025
Gelatin solutions P and Q of concentrations 3.5% and 0.5%, respectively, need to be mixed to obtain a 3% solution R. How much volume (in ml) of P needs to be mixed with 100 ml of Q to obtain R? (Choose the correct option)
All concentrations are in units of weight/volume.
Ques 4 GATE 2025
At a given frequency, the storage modulus (G') and loss modulus (G') of four biomaterials are shown in the table below. Which of the following option(s) is/are CORRECT?
| Biomaterial | G' (Pa) | G' (Pa) |
| P | 1000 | 50 |
| Q | 80 | 1000 |
| R | 1000 | 100 |
| S | 0 | 1000 |
Ques 5 GATE 2025
Polylactic-co-glycolic acid (PLGA) is combined with an equal amount (by weight) of hydroxyapatite (HA) to make a bone scaffold. If the porosity of the scaffold is 80%, what is the scaffold density in g/cm3? (rounded off to two decimal places)
Assume densities of PLGA and HA to be 1 g/cm3 and 3 g/cm3, respectively.
Ques 6 GATE 2025
Strength (σ) of an implanted suture is given by the equation σ=σ0-2 loge(t) for t≥1, where σ0 represents the original strength and time t is measured in weeks. If the strength of the suture is 2 MPa at 4 weeks, what will be its strength (in MPa) at 8 weeks? (rounded off to two decimal places)
Ques 7 GATE 2025
The storage modulus (G') of a collagen gel scales as G'~[C]3, where [C] represents the collagen concentration in mg/ml. If the storage modulus of a 1 mg/ml collagen gel is 100 Pa, then the storage modulus of a 3 mg/ml collagen gel is ______ Pa. (rounded off to the nearest integer)
Ques 8 GATE 2025
Let R1, R2 and R3 be the Reynolds numbers corresponding to the following three cases, respectively
Case 1: A 1 μm long bacterium swimming in water
Case 2: A 10 cm long fish swimming in water
Case 3: A 10 m long whale swimming in water
If each of them covers a distance equal to their respective body length in one second, which one of the following is CORRECT?
Ques 9 GATE 2025
The shape of an elastic rod of length l is represented by the position vector &vec;r(s) corresponding to the arc length S. If the bending energy of the rod is
Ques 10 GATE 2025
For a tissue with Young's modulus 4 kPa and shear modulus 1.5 kPa, what is the value of the Poisson's ratio?
Ques 11 GATE 2025
Which of the following statement(s) is/are CORRECT about isotonic and isometric tests?
Ques 12 GATE 2025
A Newtonian fluid of viscosity μ is undergoing laminar flow in a tube of radius R. For a constant pressure drop per unit length along the tube, which of the following statement(s) is/are CORRECT?
Note: r represents the radial position; assume no slip condition at the boundaries.
Ques 13 GATE 2025
For pulsatile blood flow through an artery of internal diameter 20 mm, wall thickness 1 mm and Young's Modulus 1 MPa, what is the wave speed in metres per second? (rounded off to one decimal place).
Assume the density of blood to be 1050 kg/m3.
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