Explore topic-wise MCQs in Chemical Engineering.

This section includes 5314 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1851.

Which of the following taper is used for ‘shanks of the twist drills’?

A. Morse taper
B. Brown taper
C. Sharpe taper
D. Jarno taper
Answer» B. Brown taper
1852.

Which of the following option is correct for given statements about plug gauges for self-holding tapers?Statement 1: Plug is inserted with high pressure for checking taper.Statement 2: Morse taper is a type of self-holding taper.

A. T, F
B. F, F
C. T, T
D. F, T
Answer» E.
1853.

What is the not true for plug and ring gauges for self-holding tapers?

A. These tapers can be used for accurate alignment of tool
B. Can be used for the purpose of transmitting the torques
C. Use of these gauges helps in arriving at absolute deviation
D. Tapers can be external or internal
Answer» D. Tapers can be external or internal
1854.

x-ray brings the labeled data power of pandas to the physical sciences.

A. True
B. False
Answer» B. False
1855.

The ________ project builds on top of pandas and matplotlib to provide easy plotting of data.

A. yhat
B. Seaborn
C. Vincent
D. None of the mentioned
Answer» C. Vincent
1856.

Quandl API for Python wraps the ________ REST API to return Pandas DataFrames with time series indexes.

A. Quandl
B. PyDatastream
C. PyData
D. None of the mentioned
Answer» B. PyDatastream
1857.

What happens if the inclination is more than 3-6 degrees in the fuller Huron conveyor?

A. Difficulty in laying transportation lines
B. Faster transportation
C. Slows down the transportation
D. Has no effect
Answer» B. Faster transportation
1858.

Transportation through fluidization using more power than any other process, true or false?

A. True
B. False
Answer» C.
1859.

In below fig, how is the mixing of powdered particles taking place?

A. Water
B. Air
C. Steam
D. None of the mentioned
Answer» C. Steam
1860.

What is the application of the process mentioned in below fig?

A. Transportation
B. Mixing
C. Reaction
D. Segregation
Answer» B. Mixing
1861.

What is the maximum range of inclination, in the Fuller Huron air slide conveyor?

A. 1-3 degrees
B. 3-6 degrees
C. 6-9 degrees
D. 9-12 degrees
Answer» C. 6-9 degrees
1862.

Which of the following standard committee specifies Bluetooth and other Personal Area Networks (PAN)?

A. IEEE 802.11b
B. IEEE 802.15
C. IEEE 802.11g
D. IEEE 802.16
Answer» C. IEEE 802.11g
1863.

What is the raw channel bit error rate of Bluetooth?

A. 10-3
B. 10-10
C. 103
D. 10-1
Answer» B. 10-10
1864.

Bluetooth standard is named after ___________

A. King Ronaldo Bluetooth
B. Pope Vincent Bluetooth
C. King Herald Bluetooth
D. Pope Francis Bluetooth
Answer» D. Pope Francis Bluetooth
1865.

Which of the following is not an open standard?

A. Bluetooth
B. WWW
C. HTML
D. VPN
Answer» E.
1866.

If a character input is given to a command which only takes integers, it’ll always give an error.

A. True
B. False
Answer» B. False
1867.

The uniform distribution can range from -infinity to 0 or 0 to Infinity but not from -infinity to infinity.

A. True
B. False
Answer» C.
1868.

If y = cos-1x, then

A. (yn+2)(0) = -n(2n-1) yn(0)
B. (yn+2)(0) = n(2n-1) yn(0)
C. (yn+2)(0) = n(n-2) yn(0)
D. (yn+2)(0) = n(n-3) yn(0)
Answer» C. (yn+2)(0) = n(n-2) yn(0)
1869.

If y = sin-1x, then

A. (1-x2)yn+2 – xyn+1(2n-1) = nyn(2n-1)
B. x2yn+2 – xyn+1(2n-1) = nyn(2n-1)
C. (1-x2)yn+2 – 2nxyn+1 = nyn(2n-1)
D. (1-x2)yn+2 – xyn+1(2n-1) +nyn(2n-1)=0
Answer» B. x2yn+2 – xyn+1(2n-1) = nyn(2n-1)
1870.

If y(x) = tan-1x then

A. (yn+1)(0) = (n-1)(yn-1)0
B. (yn+1)(0) = n(n-1)(yn-1)0
C. (yn+1)(0) = -(n-1)(yn-1)0
D. (yn+1)(0) = -n(n-1)(yn-1)0
Answer» E.
1871.

Find nth derivative of xnSin(nx)

A. \(n!Sin(nx) + n_{C_1} n_{P_{n-1}}x^{n-1}nCos(nx) – n_{C_2}n_{P_{n-2}}x^{n-2}n^2Sin(nx)\) \(-n_{C_3}n_{P_{n-3} }x^{n-3}n^3Sin(nx)+n_{C_3}n_{P_{n-4}}x^{n-4}n^4Cos(nx)+..+x^nn^nSin(nx+nπ/2)\)
B. \(Sin(nx) + n_{C_1} n_{P_{n-1}}x^{n-1}nCos(nx) – n_{C_2}n_{P_{n-2}}x^{n-2}n^2Sin(nx)\) \(-n_{C_3}n_{P_{n-3}}x^{n-3}n^3Sin(nx)+n_{C_3}n_{P_{n-4}}x^{n-4}n^4Cos(nx)+..+n!x^nn^nSin(nx+nπ/2)\)
C. \(nSin(nx) + n_{C_1} n_{P_{n-1}}x^{n-1}nCos(nx) – n_{C_2}n_{P_{n-2}}x^{n-2}n^2Sin(nx)\) \(-n_{C_3}n_{P_{n-3}}x^{n-3}n^3Sin(nx)+n_{C_3}n_{P_{n-4}}x^{n-4}n^4Cos(nx)+..+nx^nn^nSin(nx+nπ/2)\)
D. \((n-1)!Sin(nx) + n_{C_1} n_{P_{n-1}}x^{n-1}nCos(nx) – n_{C_2}n_{P_{n-2}}x^{n-2}n^2Sin(nx)\) \(-n_{C_3}n_{P_{n-3}}x^{n-3}n^3Sin(nx)+n_{C_3}n_{P_{n-4}}x^{n-4}n^4Cos(nx)+..+x^nn^{n-1}Sin(nx+nπ/2)\)
Answer» B. \(Sin(nx) + n_{C_1} n_{P_{n-1}}x^{n-1}nCos(nx) – n_{C_2}n_{P_{n-2}}x^{n-2}n^2Sin(nx)\) \(-n_{C_3}n_{P_{n-3}}x^{n-3}n^3Sin(nx)+n_{C_3}n_{P_{n-4}}x^{n-4}n^4Cos(nx)+..+n!x^nn^nSin(nx+nπ/2)\)
1872.

The nth derivative of x2y2 + (1-x2)y1 + xy = 0 is,

A. x2yn+2 + yn(2n2-2n-2nx+x) – yn-1(2n2-3n)=0
B. x2yn+2 + yn+1(2nx-x2) + yn(2n2-2n-2nx+x) – yn-1(2n2-3n)=0
C. x2yn+2 + yn+1(2nx+1-x2) + yn(2n2-2n-2nx+x)-yn – 1(2n2-3n)=0
D. x2yn+2 + yn+1(2nx+1-x2) + xyn2n2-yn – 1(2n2-3n)=0
Answer» D. x2yn+2 + yn+1(2nx+1-x2) + xyn2n2-yn – 1(2n2-3n)=0
1873.

Find nth derivative of x2y2 + xy1 + y = 0

A. x2yn+2 + (2n+1)xyn+1 + (n2+1)yn = 0
B. x2yn+2 + nxyn+1 + (n2+1)yn = 0
C. x2yn+2 + (2n+1)xyn+1 + n2yn = 0
D. x2yn+2 + 2nxyn+1 + n2yn = 0
Answer» B. x2yn+2 + nxyn+1 + (n2+1)yn = 0
1874.

If nth derivative of xy3 + x2y2 + x3y0 = 0 then order of its nth differential equation is,

A. n
B. n+1
C. n+2
D. n+3
Answer» E.
1875.

Leibniz rule gives the

A. Nth derivative of addition of two function
B. Nth derivative of division of two functions
C. Nth derivative of multiplication of two functions
D. Nth derivative of subtraction of two function
Answer» D. Nth derivative of subtraction of two function
1876.

Pjb8 is an example of __________ vector.

A. Cosmid
B. Phagemid
C. Hybrid
D. M13 bacteriophage
Answer» B. Phagemid
1877.

Which type of vector is P1?

A. Phage
B. Plasmid
C. Cosmid
D. Phagemid
Answer» B. Plasmid
1878.

What are PACs?

A. Low capacity phage vector
B. High capacity phage vector
C. Plasmid vector
D. Phagemid vector
Answer» C. Plasmid vector
1879.

BAC vectors are based on _________ plasmid.

A. R
B. F
C. Col
D. Trp
Answer» C. Col
1880.

Which of the following assertions is true in regard to a cosmid vector?

A. No plaques are produced
B. Lac-selection system is used
C. It can carry small DNA fragments
D. Origin of replication is taken from lambda
Answer» B. Lac-selection system is used
1881.

For the single crystal X-ray diffraction studies what is the length of the diameter that a single crystal should have?

A. 5mm
B. 5m
C. 100mm
D. 0.05mm
Answer» E.
1882.

High temperature X-ray diffraction is a valuable technique for obtaining ___________

A. Functional information on polymers
B. Structural information on polymorphs
C. Concentration of polymers
D. Solubility of polymers
Answer» C. Concentration of polymers
1883.

An X-ray powder diffraction pattern is a set of ______________

A. Circles
B. Lines
C. Parabola
D. Ellipse
Answer» C. Parabola
1884.

Main function of first stage of homogenization is?

A. Fat globule reduction
B. Separation of clusters of fat into individual fat molecules
C. Oxidation
D. Off flavor development
Answer» B. Separation of clusters of fat into individual fat molecules
1885.

Homogenization in which the main body of skim milk is not homogenized, but only the cream together with a small proportion of skim milk is homogenized is called?

A. Complete homogenization
B. Partial homogenization
C. Concentrate homogenization
D. Pasteurized homogenization
Answer» C. Concentrate homogenization
1886.

The milk after homogenization will not be suitable for the production of semi-hard or hard cheeses due to which of the following reasons?

A. Too soft coagulum
B. Too hard coagulum
C. Off flavor
D. Bitter taste
Answer» B. Too hard coagulum
1887.

The bacterial counts of milk will _______ after homogenization.

A. Increase
B. Decrease
C. Remain same
D. First increase then decrease
Answer» B. Decrease
1888.

Homogenization has which of the following effects on the physiology of nutrition of milk?

A. Improved digestibility
B. Reduced digestibility
C. Cholesterol
D. Sugar
Answer» B. Reduced digestibility
1889.

Which of the following is the effect of homogenization on the appearance of milk?

A. Dusty appearance
B. Yellowish appearance
C. Whitish appearance
D. Blackish appearance
Answer» D. Blackish appearance
1890.

Homogenization reduce the size of fat globules to which size?

A. Less than 2µ
B. Less than 3µ
C. Less than 4µ
D. Less than 5µ
Answer» B. Less than 3µ
1891.

Time complexity of the binary search algorithm is constant.

A. True
B. False
Answer» C.
1892.

Which algorithm is better for sorting between bubble sort and quicksort?

A. bubble sort
B. quick sort
C. both are equally good
D. none of the mentioned
Answer» C. both are equally good
1893.

The time complexity of the linear search is given by ___________

A. O(log2n)
B. O(1)
C. exponential
D. none of the mentioned
Answer» E.
1894.

The time complexity of binary search is given by ___________

A. constant
B. quardratic
C. exponential
D. none of the mentioned
Answer» E.
1895.

If for an algorithm time complexity is given by O((3⁄2)n) then complexity will be ___________

A. constant
B. quardratic
C. exponential
D. none of the mentioned
Answer» D. none of the mentioned
1896.

If for an algorithm time complexity is given by O(n2) then complexity will ___________

A. constant
B. quadratic
C. exponential
D. none of the mentioned
Answer» C. exponential
1897.

If for an algorithm time complexity is given by O(n) then the complexity of it is ___________

A. constant
B. linear
C. exponential
D. none of the mentioned
Answer» C. exponential
1898.

If for an algorithm time complexity is given by O(log2n) then complexity will be ___________

A. constant
B. polynomial
C. exponential
D. none of the mentioned
Answer» E.
1899.

If for an algorithm time complexity is given by O(1) then the complexity of it is ____________

A. constant
B. polynomial
C. exponential
D. none of the mentioned
Answer» B. polynomial
1900.

Which is used to measure the Time complexity of an algorithm Big O notation?

A. describes limiting behaviour of the function
B. characterises a function based on growth of function
C. upper bound on growth rate of the function
D. all of the mentioned
Answer» E.