Explore topic-wise MCQs in Bioprocess Engineering.

This section includes 15 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.

You will read the meniscus reading as you measure the level at the horizontal center or inside part of the meniscus.

A. True
B. False
Answer» B. False
Discussion
2.

What type of surface you would observe in the case of mercury with glass?

A. Concave meniscus
B. Convex meniscus
C. Contact angle = 180°
D. Contact angle = 0°
Answer» C. Contact angle = 180°
Discussion
3.

You are given a cube of pure copper. You measure the sides of the cube to find the volume and weigh it to find its mass. When you calculate the density using your measurements, you get 8.78 grams/cm3. Coppers accepted density is 8.96 g/cm3. What is your percent error?

A. 1%
B. 0.02%
C. 0.01%
D. 2%
Answer» E.
Discussion
4.

A group of students worked in separate teams to measure the length of an object. Here are their data: Find out:-i) The average lengthii) The range or spreadiii) The precision of the measurement

A. 2.7, 0.2, 2.7±0.2
B. 2.8, 0.1, 2.8±0.1
C. 2.0, 0.1, 2.0±0.1
D. 2.0, 0.2, 2.0±0.2
Answer» B. 2.8, 0.1, 2.8±0.1
Discussion
5.

The accepted value for the density of gold metal is 19.31 g/cm3. If a student measured the mass and volume of a sample of gold, and obtained a value of 19.03 g/cm3, the percent difference would be ______

A. -1.5%
B. 1.5%
C. -0.5%
D. 0.5%
Answer» B. 1.5%
Discussion
6.

What type of surface you would observe in the case of mercury with glass?$

A. Concave meniscus
B. Convex meniscus
C. Contact angle =180Àö
D. Contact angle= 0Àö
Answer» B. Convex meniscus
Discussion
7.

You are given a cube of pure copper. You measure the sides of the cube to find the volume and weigh it to find its mass. When you calculate the density using your measurements, you get 8.78 grams/cm3. Coppers accepted density is 8.96 g/cm3. What is your percent error?$

A. 1%
B. 0.02%
C. 0.01%
D. 2%
Answer» C. 0.01%
Discussion
8.

A group of students worked in separate teams to measure the length of an object. Here are their data: Find out:?

A. The average length
B. The range or spread
C. The precision of the measurement
Answer» B. The range or spread
Discussion
9.

The accepted value for the density of gold metal is 19.31 g/cm3. If a student measured the mass and volume of a sample of gold, and obtained a value of 19.03 g/cm3, the percent difference would be______

A. -1.5%
B. 1.5%
C. -0.5%
D. 0.5%
Answer» B. 1.5%
Discussion
10.

If a student measured the mass of an object on a balance three times and obtained the values 14.568 g, 14.566 g, and 14.565 g, the range and percent of the average value between the measurements would be ____________

A. 0.005gm, 0.01%
B. 0.004gm,0.02%
C. 0.003gm,0.02%
D. 0.001gm,0.01%
Answer» D. 0.001gm,0.01%
Discussion
11.

From the below data which one is precise?

A.
B.
Answer» B.
Discussion
12.

Which of the following is correct according to calculating relative error as a measure of Precision?

A. (Absolute error/ True value)*100
B. (Absolute error/True value)
C. (measurement being taken/Absolute error)*100
D. (Absolute error/measurement being taken)
Answer» E.
Discussion
13.

A piece of iron rod was measured and found to be 120cms. But the actual value of the wood is 123cms. Find the relative error?

A. 3%
B. 2.5%
C. 2.43%
D. 3.43%
Answer» D. 3.43%
Discussion
14.

Round off the number 425.68 to Tenths (1 decimal place), Hundredths (2 decimal place) and to Tens place?

A. 425.6, 425.68, 426
B. 425.7, 425.68, 430
C. 425.5, 426.78, 425
D. 425.7, 4257, 430
Answer» C. 425.5, 426.78, 425
Discussion
15.

What is the rounding off of a number?

A. To change a number to its nearest prime number
B. To change a number to its nearest odd number
C. To change a number to its nearest whole number
D. to change a number to its nearest even number
Answer» D. to change a number to its nearest even number
Discussion