Explore topic-wise MCQs in Bioprocess Engineering.

This section includes 27 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Taking question 10 into consideration, and Calculate the rate of discharge of the liquid if the vessel contains oil of viscosity 0.84 poise to its 2/3 capacity. Take the density of oil as 0.9 gm/cc.

A. 0.08 cm3/s
B. 0.06 cm3/s
C. 1.08 cm3/s
D. 1.06 cm3/s
Answer» B. 0.06 cm3/s
2.

At the bottom of a uniform cylindrical vessel of 30 cm height a horrizontal capillary tube of 2mm inner diameter and 10 cm length is connected to discharge the liquid. Calculate the rate of discharge of the liquid if the vessel contains water of viscosity 0.01 poise to its 2/3 capacity. Take the density of water as 1 gm/cc.

A. 7.59 cm3/s
B. 6.59 cm3/s
C. 7.69 cm3/s
D. 6.69 cm3/s
Answer» D. 6.69 cm3/s
3.

Which of the following factors do not determine the Blood viscosity?

A. Color
B. Erythrocyte deformability
C. Plasma viscosity
D. Temperature
Answer» B. Erythrocyte deformability
4.

Taking question 7 into consideration, and calculate the kinematic viscosity of the oil.

A. 30.11 cSt
B. 30.19 cSt
C. 35.11 cSt
D. 35.19 cSt
Answer» B. 30.19 cSt
5.

A capillary tube is 30 mm long and 1 mm bore. The head required to produce a flow rate of 8 mm3/s is 30 mm. The fluid density is 800 kg/m3. Calculate the dynamic viscosity of the oil.

A. 20.1 cP
B. 24.1 cP
C. 20.0 cP
D. 24.0 cP
Answer» C. 20.0 cP
6.

Oil flows in a pipe 100 mm bore diameter with a Reynolds’ Number of 500. The density is 800 kg/m3. Calculate the velocity of a streamline at a radius of 40 mm. The viscosity µ = 0.08 Ns/m2.

A. 0.60 m/s
B. 0.26 m/s
C. 0.36 m/s
D. 0.66 m/s
Answer» D. 0.66 m/s
7.

What value of angle Φ is between the plate and cone in Cone-and-Plate viscometer?

A. More than 3°
B. Less than 3°
C. More than 2°
D. More than 5°
Answer» C. More than 2°
8.

WHICH_OF_THE_FOLLOWING_IS_NOT_CONVERTING_VISCOSITY_TO_PRESSURE??$

A. Redwood viscometer
B. Saybolt viscometer
C. Orifice viscometer
D. Rotameter viscometer
Answer» E.
9.

WHICH_OF_THE_FOLLOWING_FACTORS_DO_NOT_DETERMINE_THE_BLOOD_VISCOSITY??$

A. Color
B. Erythrocyte deformability
C. Plasma viscosity
D. Temperature
Answer» B. Erythrocyte deformability
10.

Taking question 10 into consideration, and Calculate the rate of discharge of the liquid if the vessel contains oil of viscosity 0.84 poise to its 2/3 capacity. Take the density of oil as 0.9 gm/cc.$

A. 0.08 cm<sup>3</sup>/s
B. 0.06 cm<sup>3</sup>/s
C. 1.08 cm<sup>3</sup>/s
D. 1.06 cm<sup>3</sup>/s
Answer» B. 0.06 cm<sup>3</sup>/s
11.

Which_of_the_following_represents_Hagen-poissule_equation?$

A. µ= (πd<sup>4</sup>ΔP)/ (128Q’L)
B. µ= (d<sup>4</sup>ΔP)/ (128Q’L)
C. µ= (πd<sup>4</sup>ΔP)/ (Q’L)
D. µ= (πd<sup>4</sup>)/ (128Q’L)
Answer» B. ¬¨¬®¬¨¬µ= (d<sup>4</sup>‚âà√≠‚àö√ÜP)/ (128Q‚Äö√Ñ√∂‚àö√ë‚àö¬•L)
12.

At_the_bottom_of_a_uniform_cylindrical_vessel_of_30_cm_height_a_horrizontal_capillary_tube_of_2mm_inner_diameter_and_10_cm_length_is_connected_to_discharge_the_liquid._Calculate_the_rate_of_discharge_of_the_liquid_if_the_vessel_contains_water_of_viscosity_0.01_poise_to_its_2/3_capacity._Take_the_density_of_water_as_1_gm/cc.$

A. 7.59 cm<sup>3</sup>/s
B. 6.59 cm<sup>3</sup>/s
C. 7.69 cm<sup>3</sup>/s
D. 6.69 cm<sup>3</sup>/s
Answer» D. 6.69 cm<sup>3</sup>/s
13.

Rotameter type viscometer convert viscosity to angular displacement?

A. True
B. False
Answer» C.
14.

Taking question 7 into consideration, and calculate the kinematic viscosity of the oil?

A. 30.11 cSt
B. 30.19 cSt
C. 35.11 cSt
D. 35.19 cSt
Answer» B. 30.19 cSt
15.

Orifice type viscometer covert viscosity to _______________

A. Force
B. Pressure
C. Displacement
D. Potential difference
Answer» C. Displacement
16.

A capillary tube is 30 mm long and 1 mm bore. The head required to produce a flow rate of 8 mm3/s is 30 mm. The fluid density is 800 kg/m3. Calculate the dynamic viscosity of the oil.

A. 20.1 cP
B. 24.1 cP
C. 20.0 cP
D. 24.0 cP
Answer» C. 20.0 cP
17.

What happens to viscosity of liquid and gas when temperature is increased?

A. Both increases
B. Both decreases
C. For liquid increases and for gas decreases
D. For liquid decreases and gas increases
Answer» E.
18.

What influences viscosity?

A. Temperature
B. Time
C. Velocity
D. Speed
Answer» B. Time
19.

Which of the following represents Newtonian fluids?

A. Lubricating oils
B. Honey
C. Rubber suspension
D. Synthetic oils
Answer» B. Honey
20.

Oil flows in a pipe 100 mm bore diameter with a Reynolds’ Number of 500. The density is 800 kg/m3. Calculate the velocity of a streamline at a radius of 40 mm. The viscosity µ = 0.08 Ns/m2.$

A. 0.60 m/s
B. 0.26 m/s
C. 0.36 m/s
D. 0.66 m/s
Answer» D. 0.66 m/s
21.

Which of the following represents relation for kinematic viscosity?

A. Absolute density/mass density
B. Absolute density √ó mass density
C. Absolute density √ó (mass density)<sup>2</sup>
D. Absolute density/(mass density)<sup>2</sup>
Answer» B. Absolute density ‚Äö√†√∂‚àö‚â• mass density
22.

Which one of the following is not applicable to Coaxial cylinder?

A. Endomyces sp.
B. Streptomyces aureofaciens
C. Penicillium chrysogenum
D. Xanthomonas campestris
Answer» E.
23.

Which of the following represents newton’s equation for viscosity?$

A. τ=µ(dv/dt)
B. µ=τ(dv/dt)
C. τ=dv/dt
D. τ= µ<sup>2</sup>(dv/dt)
Answer» B. ¬¨¬®¬¨¬µ=‚âà√¨‚àö√´(dv/dt)
24.

Which one of the following is not applicable to rotating spindle viscometer?

A. Penicillium chrysogenum
B. Saccharomyces cerevisiae
C. Aspergillus niger
D. Streptomyces aureofaciens
Answer» B. Saccharomyces cerevisiae
25.

If shear stress is equal proportional to velocity gradient, fluid is called as ______________

A. Newtonian fluid
B. Viscous fluid
C. Laminar fluid
D. None of the mentioned
Answer» B. Viscous fluid
26.

A small spherical ball of diameter 5mm is thrown into a well of water and it moves with a terminal velocity 10cm/s. Calculate the density of the spherical ball. Given that viscosity of water is 0.01poise.

A. 1.0083 gm/cm<sup>3</sup>
B. 1.0000 gm/cm<sup>3</sup>
C. 1.0023 gm/cm<sup>3</sup>
D. 1.0073 gm/cm<sup>3</sup>
Answer» E.
27.

What value of angle φ is between the plate and cone in Cone-and-Plate viscometer?

A. More than 3°
B. Less than 3°
C. More than 2°
D. More than 5°
Answer» C. More than 2¬¨¬®‚Äö√†√ª