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.

4651.

Error in hierarchy

A. Copies the input text to the system clipboard
B. Replaces any text, in the clipboard, with the input text
C. Syntactical Error
Answer» B. Replaces any text, in the clipboard, with the input text
4652.

Which of the following technology distributes the coverage of the cell and extends the cell boundary to hard-to-reach places?

A. Cell splitting
B. Scattering
C. Sectoring
D. Micro cell zone concept
Answer» E.
4653.

Sodium ions contribute to which characteristic of the water?

A. pH
B. Total Dissolved Solids
C. Colour
D. Suspended solids
Answer» C. Colour
4654.

In a single-phase half-wave circuit with RL load and a freewheeling diode, the load voltage during the freewheeling period will be

A. zero
B. positive
C. negative
D. positive than negative
Answer» C. negative
4655.

The soil survey is conducted in which of the following survey?

A. Preliminary survey
B. Reconnaissance survey
C. Map study
D. Topography study
Answer» B. Reconnaissance survey
4656.

Armature reaction in a machine is demagnetizing due to _________

A. Machine is designed with iron which is slightly saturated
B. Machine is designed with iron which is unsaturated
C. Depends on the application where machine is being is used
D. Can’t tell
Answer» B. Machine is designed with iron which is unsaturated
4657.

Which calorific value is same as the thermodynamic heat of combustion?

A. Net calorific value
B. Flash point value
C. Gross calorific value
D. Fire point value
Answer» E.
4658.

Calculate strength in shear of 16mm diameter of bolt of grade 4.6 for lap joint

A. 50 kN
B. 40 kN
C. 29 kN
D. 59 kN
Answer» D. 59 kN
4659.

Error due to a

A. Error due to A
B. Error due to [];
C. Error due to ;
Answer» C. Error due to ;
4660.

ISO was founded in the year of ______

A. 1943
B. 1946
C. 1949
D. 1956
Answer» C. 1949
4661.

The specific heat of a substance at constant pressure is defined as the rate of change of ___ with respect to ___

A. work, pressure
B. enthalpy, temperature
C. enthalpy, pressure
D. heat, temperature
Answer» C. enthalpy, pressure
4662.

What does the permissible current density depend upon?

A. local heating
B. efficiency
C. output power
D. local heating and efficiency
Answer» E.
4663.

Which of the following factors can affect the step size calculation?

A. number of bits
B. input current
C. output current
D. all of the mentioned
Answer» B. input current
4664.

Which of the following is not the advantage of thermal conductivity detector used in gas chromatography?

A. Simple in construction
B. High sensitivity
C. Large linear dynamic range
D. Non-destructive character
Answer» C. Large linear dynamic range
4665.

To delete a database ___________ command is used

A. Delete database database_name
B. Delete database_name
C. drop database database_name
D. drop database_name
Answer» D. drop database_name
4666.

After finishing concrete surface must be kept __________

A. Dry
B. First dry it and then wet it
C. First wet it and then dry it
D. Wet
Answer» E.
4667.

A = {x: x ≠ x }represents$

A. {0].
B. {1}
C. {}
D. {x}
Answer» D. {x}
4668.

Handler method annotation.

A. @Before
B. @Controller
C. @After
D. @RequestMapping
Answer» E.
4669.

When primary current flows, secondary circuit should be open.

A. True
B. False
Answer» C.
4670.

By what means the power in the steam power plant is developed?

A. Condenser
B. Electric power system
C. Prime mover
D. Economizer
Answer» D. Economizer
4671.

The __________ test is an indirect method for determining amount of lignin consumption of permanganate ion.

A. Alfa
B. Beta
C. Gama
D. Kappa
Answer» E.
4672.

The parabolic profile of the cables in the edge beam counteracts the:

A. Compression
B. Tension
C. Deflection
D. Deformation
Answer» D. Deformation
4673.

In Overlap save method of long sequence filtering, what is the length of the input sequence block?

A. L+M+1
B. L+M
C. L+M-1
D. None of the mentioned
Answer» D. None of the mentioned
4674.

E, G, K and μ elastic modulus, shear modulus, bulk modulus and Poissons ratio respectively. To express the stress strain relations completely for this material, at least$

A. E, G and μmust be known
B. E, K and μmust be known
C. Any two of the four must be known
D. All the four must be known
Answer» D. All the four must be known
4675.

The intrinsic carrier density at room temperature in Ge is 2.37√ó1019/m3. If the electron and hole mobilities are 0.38 and 0.18 m2/Vs respectively. Calculate its resistivity.$

A. 0.18ohm m
B. 0.460ohm m
C. 0.4587ohm m
D. 0.709ohm m
Answer» E.
4676.

The fourth derivative of f(x) = sin(x)sinh(x) ‚ÅÑ x at x = 0 is given by$

A. 0
B. <sup>π</sup>⁄<sub>2</sub>
C. 45
D. 4
Answer» B. <sup>‚âà√¨‚àö√ë</sup>‚Äö√Ñ√∂‚àö√ñ‚àö√´<sub>2</sub>
4677.

Helium gas expands from 350 K, 125 kPa and 0.25 m^3 to 100 kPa in a polytropic process with n = 1.667. How much work does it give out?

A. 3.09 kJ
B. 4.09 kJ
C. 5.09 kJ
D. 6.09 kJ
Answer» C. 5.09 kJ
4678.

Which among the following is the distributive law for the cross product of three vectors?

A. Px(Q+S) = (PxQ) + (PxS)
B. Px(QxS) = (PxQ) + (PxS)
C. Px(QxS) = (PxQ) x (PxS)
D. Px(Q+S) = (PxQ) + (QxS)
Answer» B. Px(QxS) = (PxQ) + (PxS)
4679.

Which of the following is not a type of silicon nitride ceramics?

A. Reaction bonded silicon nitride
B. Hot pressed silicon nitride
C. Stiff silicon nitride
D. Pressure-less sintered silicon nitride
Answer» D. Pressure-less sintered silicon nitride
4680.

__________ is an excellent water soluble binder.

A. Cereal Binder
B. Zircon
C. Dextrin
D. Silica Sand
Answer» D. Silica Sand
4681.

What type of ranging is done if both ends of surveying lines are visible?

A. Direct
B. Indirect
C. Reciprocal
D. Unable to do
Answer» B. Indirect
4682.

The effects of intrinsic absorption can be minimized by-

A. Ionization
B. Radiation
C. Suitable choice of core and cladding components
D. Melting
Answer» D. Melting
4683.

Clicking on the model edge and a line intersecting it will dimension for the _______

A. length of model edge
B. length of intersecting line
C. angle between them
D. length of both lines
Answer» D. length of both lines
4684.

-5 mod -3 =

A. 3
B. 2
C. 1
D. 5
Answer» D. 5
4685.

If the standing wave ratio for a transmission line is 1.4, then the reflection coefficient for the line is:

A. 0.16667
B. 1.6667
C. 0.01667
D. 0.96
Answer» B. 1.6667
4686.

The CRC bits are computed based on the values of the _____

A. PID
B. ADDR
C. ENDP
D. Both ADDR and ENDP
Answer» E.
4687.

What is used to specify the operation done on a particular feature?

A. Dimension
B. Note
C. Arrowhead
D. Leader line
Answer» C. Arrowhead
4688.

Cores of which of the following shapes are not produced in core extrusion process:

A. Square
B. Hexagonal
C. Round
D. Random
Answer» E.
4689.

Choose the correct option:

A.
B. L1 U L2
C. L2 ‚à© L2
Answer» D.
4690.

Which of the following is a function of a modified histone tail?

A. Association with adjacent nucleosome
B. Interaction with DNA backbone
C. Interaction with chromodomains
D. Formation of 40-fold DNA structure
Answer» D. Formation of 40-fold DNA structure
4691.

When delta/delta connection is used?

A. Small HV
B. Small LV
C. High HV
D. High LV
Answer» E.
4692.

Which of the following statement(s) about stack data structure is/are NOT correct?

A. Linked List are used for implementing Stacks
B. Top of the Stack always contain the new node
C. Stack is the FIFO data structure
D. Null link is present in the last node at the bottom of the stack
Answer» D. Null link is present in the last node at the bottom of the stack
4693.

Which of the following holds true for Pulsed Electric field?

A. It has been successful in pasteurizing milk, yogurt, soup etc
B. If there are no air bubbles present or the if food has low electrical conductivity, PEF is non-applicable
C. It’s a continuous process. It cannot be applied for non-pump able solid food products
D. All of the mentioned
Answer» E.
4694.

The more friction of the greases is due to their high______

A. velocity
B. viscosity
C. temperature coefficient
D. buoyancy
Answer» C. temperature coefficient
4695.

An automobile chassis does not include which one of the following parts

A. Shock absorbers
B. Steering system
C. Differential
D. Brakes
Answer» D. Brakes
4696.

‘a’ in a-machine is :$

A. Alan
B. arbitrary
C. automatic
D. None of the mentioned
Answer» D. None of the mentioned
4697.

In the case DNA is transferred from gel to the membrane, it is known as:

A. southern blot
B. western blot
C. northern blot
D. south-western blot
Answer» B. western blot
4698.

What is the formula to calculate the number of turns/phase?

A. number of turns = secondary voltage * voltage per turn
B. number of turns = secondary voltage / voltage per turn
C. number of turns = secondary voltage + voltage per turn
D. number of turns = secondary voltage – voltage per turn
Answer» C. number of turns = secondary voltage + voltage per turn
4699.

In a CO2 laser, a mixture of _____ is circulated through the gas tube.

A. CO<sub>2</sub>, N<sub>2</sub> and He
B. CO<sub>2</sub>, N<sub>2</sub> and Ar
C. CO<sub>2</sub>, H<sub>2</sub> and N<sub>2</sub>
D. CO<sub>2</sub>, I<sub>2</sub> and O<sub>2</sub>
Answer» B. CO<sub>2</sub>, N<sub>2</sub> and Ar
4700.

The oxide later formed on commercial Si does not affect the etching of Si.

A. True
B. False
Answer» C.