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.

4301.

No deduction is made for?

A. Rectangular openings >1 sq ft
B. Arch masonary
C. Bed plate upto 4″depth
D. Lintels over openings
Answer» D. Lintels over openings
4302.

For a change in temperature ______ is added to tn.

A. Half
B. One fourth
C. Two third
D. Square
Answer» B. One fourth
4303.

The output SNR can be made independent of input signal level by using

A. Uniform quantizer
B. Non uniform quantizer
C. Uniform & Non uniform quantizer
D. None of the mentioned
Answer» C. Uniform & Non uniform quantizer
4304.

Which of the following has the best resistance to oils?

A. Natural rubber
B. Neoprene
C. Nitrile rubber
D. Styrene rubber
Answer» D. Styrene rubber
4305.

The enzyme that breaks ________ into 2 glucose molecules is ________

A. maltose, lactase
B. lactose, lactase
C. maltose, maltase
D. lactose, maltase
Answer» D. lactose, maltase
4306.

Which of the following is true for Organizational structure?

A. Requirements and interfaces allocated and described in documents with limited communication
B. Functional area managers with little understanding of the other segments of the system
C. All of the mentioned
D. None of the mentioned
Answer» D. None of the mentioned
4307.

When CO2 concentration in blood increased breathing becomes ____________

A. shallower and deeper
B. slow and deep
C. faster and deeper
D. no effect on breathing
Answer» D. no effect on breathing
4308.

Which of the following is the child(s) of the node type EntityReference?

A. Element
B. Text
C. Both Element and Text
D. Entity
Answer» D. Entity
4309.

The total pressure in a soil mass consists of_____________distinct components.

A. 3
B. 4
C. 2
D. 5
Answer» D. 5
4310.

Shunt magnet has _________

A. large turns of wire
B. small turns of wire
C. medium turns of wire
D. no turns or wires
Answer» B. small turns of wire
4311.

The following is (are) the limitation(s) of gas turbines.

A. They are not self-starting
B. Higher rotor speeds
C. Low efficiencies at part loads
D. All of the mentioned
Answer» E.
4312.

Warning

A. Error
B. Abnormal termination
C. Prints x
Answer» C. Prints x
4313.

What is the effect of superheated steam on efficiency of Rankine cycle?

A. efficiency of Rankine cycle decreases with increase in superheat of the steam
B. efficiency of Rankine cycle increases with increase in superheat of the steam
C. efficiency of Rankine cycle is not affected by change in superheat of the steam
D. none of the mentioned
Answer» C. efficiency of Rankine cycle is not affected by change in superheat of the steam
4314.

In which types of fluids it is observed that momentum transfer dominates cohesive forces with increase in temperature and hence viscosity increases

A. Gases
B. Liquids
C. Solids
D. None of the mentioned
Answer» B. Liquids
4315.

Which of the following causes the temporary hardness?

A. CaSO<sub>4</sub>
B. MgSO<sub>4</sub>
C. MgCl<sub>2</sub>
D. Ca (HCO<sub>3</sub>) <sub>2</sub>
Answer» E.
4316.

_____________ is a technique used when artificial clicks are made which increases revenue because of pay-per-click.

A. Clickjacking
B. Clickfraud
C. Keylogging
D. Click-hacking
Answer» C. Keylogging
4317.

The minimum shoulder width recommended by IRC is

A. 1.0m
B. 1.5m
C. 2.0m
D. 2.5m
Answer» E.
4318.

A device that uses positional notation to represent a decimal number.

A. Abacus
B. Calculator
C. Pascaline
D. Computer
Answer» B. Calculator
4319.

What is the best method for application of plastic coating on the metal coating?

A. Fluidized bed
B. Spray
C. Electrostatic painting
D. Brush
Answer» B. Spray
4320.

DNA molecules in an electrophoresis gel exhibit which behavior?

A. Black body
B. Inelastic
C. Elastic
D. Reputation
Answer» D. Reputation
4321.

What is resonance energy transfer?

A. Transfer of electrons between the molecules
B. The transfer of energy as well as electrons
C. The transfer of electrons but not the energy
D. The transfer of energy but not the electron
Answer» E.
4322.

For object selection once the window is defined, objects which are ____________ will be selected.

A. around the window
B. lie entirely within the window
C. touching the window
D. only partially enclosed
Answer» C. touching the window
4323.

Alternative way to resolve locales.

A. AcceptHeaderLocale
B. AcceptHeader
C. AcceptHeaderLocaleResolver
D. SessionLocaleResolver
Answer» E.
4324.

The minimum width for __________ doors, ____________ doors and doors in public building such as hospitals, library, etc., are 800 mm, 1 m and 1.2 meters respectively.

A. Internal, External
B. External, Internal
C. Internal, Main
D. External, Main
Answer» B. External, Internal
4325.

Let P: We give a nice overall squad performance, Q: We will win the match.

A.
B. P v Q
C. Q ‚àß P
Answer» D.
4326.

What is the minimum no of cycles required for reset operation?

A. 3 cycle
B. 2 cycles
C. 1 cycles
D. 4 cycles
Answer» D. 4 cycles
4327.

What is the full form of HAZ in Freshers?

A. Helium Aerated Zone
B. Heated Area Zone
C. Heat Affected Zone
D. Heat Allowed Zone
Answer» D. Heat Allowed Zone
4328.

Calculate the emission rate where En=2.5, Nt=1010cm-3 and fF (Et)=0.6 .

A. 15*10<sup>10</sup>
B. 1.5*10<sup>10</sup>
C. 15*10<sup>11</sup>
D. 1.5*10<sup>11</sup>
Answer» C. 15*10<sup>11</sup>
4329.

Effects of hunting are/is

A. mechanical stress
B. surge in current
C. rise in temperature
D. all of the mentioned
Answer» E.
4330.

The _______ corrosion occurs when two dissimilar metals are in electrical contact with each other and exposed to an electrolyte.

A. Galvanic corrosion
B. High temperature oxidation
C. Dry corrosion
D. Electrochemical corrosion
Answer» B. High temperature oxidation
4331.

A single phase 50 hz, generator supplies an inductive load of 5 MW at a power factor of 0.8 lagging using OHTL over 20 km. The resistance and reactance are 0.39Ω and 3.96 Ω. The voltage at receiving station is maintained at 10 KV. The sending end voltage is 11.68 kV. If the voltage regulation is reduced to 50%, then the power factor at this operation mode will be _________________$

A. 0.95
B. 0.92
C. 0.74
D. 0.90
Answer» B. 0.92
4332.

In abrasion test, what material is placed in addition to the specimen in the testing apparatus?

A. Metal piece
B. Stone piece smaller than specimen
C. Cast iron ball
D. Stainless steel ball
Answer» D. Stainless steel ball
4333.

A nutrient cycle is also called as __________

A. Atmospheric cycle
B. Atmospheric recycling
C. Ecological recycling
D. Ecological chain
Answer» D. Ecological chain
4334.

What estimation is available for dilute solutions that are ternary and contain almost immiscible solvents?

A. A tabular distribution of partition coefficients by robins
B. A tabular distribution of partition coefficients by keller
C. A tabular distribution of partition coefficients by Haden
D. A tabular distribution of partition coefficients by Grayson
Answer» B. A tabular distribution of partition coefficients by keller
4335.

The γ form of iron is known as :$

A. Ferrite
B. Cementite
C. Perlite
D. Austenite
Answer» E.
4336.

Which of these is not a power loss which takes place between engine and driving wheel

A. Power loss due to friction of piston bearings and gears
B. Power loss from clutch to drive wheel due to friction of various parts
C. Transmission line loss
D. None of the mentioned
Answer» E.
4337.

In gas-liquid chromatography, when films are used in the interior of capillary column, then what is the value of Eddy diffusion?

A. Greater than 1
B. Less than 1
C. Zero
D. Less than zero
Answer» D. Less than zero
4338.

____________ can be thought of as a vehicle to perform a test process.

A. Testing technique
B. Testing tools
C. MoSCow
D. DRY
Answer» C. MoSCow
4339.

In the web-based program MEME, the computation is a _____ step procedure.

A. one
B. two
C. three
D. four
Answer» C. three
4340.

Odd parity of word can be conveniently tested by

A. OR gate
B. AND gate
C. NAND gate
D. XOR gate
Answer» E.
4341.

Grinding can be performed by______

A. using faceplates or angle plates
B. using chucks
C. special attachments
D. none of the mentioned
Answer» D. none of the mentioned
4342.

Which is the correct phasor equation indicating the transformer voltages lagging?

A. V<sub>1</sub> = V<sub>2</sub> + I*(R cosφ+ X sinφ)
B. V<sub>2</sub> = V<sub>1</sub> + I*(R cosφ+ X sinφ)
C. V<sub>1</sub> = V<sub>2</sub> + I*(X cosφ+ X sinφ)
D. V<sub>1</sub> = V<sub>2</sub> + I*(R cosφ+ R sinφ)
Answer» B. V<sub>2</sub> = V<sub>1</sub> + I*(R cos‚âà√¨‚àö√∫+ X sin‚âà√¨‚àö√∫)
4343.

An electric motor drives a machine through a speed reducing gear of ratio 9:1. The motor armature, with its shaft and gear wheel, has moment of inertia 0.6 kg-m2. The rotating part of the driven machine has moment of inertia 45 kg-m2. The driven machine has resisting torque of 100 N-m and the efficiency of reduction gear is 95%. Find the power which the motor must develop to drive the machine at a uniform speed of 160 r.p.m.

A. 1764 W
B. 2764 W
C. 3764 W
D. 4764 W
Answer» B. 2764 W
4344.

A current repeater having identical transistor has collector current, IC1 =0.39mA. Find IC2,IC4& IC6

A. 0.39mA, 0.39mA, 0.78mA
B. 0.78mA, 0.39mA, 0.39mA
C. 0.39mA, 0.78mA, 0.39mA
D. None of the mentioned
Answer» E.
4345.

How much extra thickness is added to tang thickness in tanged plug gauge?

A. 0.1 mm
B. 0.05 mm
C. 0.01 mm
D. 0.5 mm
Answer» D. 0.5 mm
4346.

LVDT works on the principle of ________

A. variable resistance
B. variable inductance
C. variable capacitance
D. variable pressure
Answer» C. variable capacitance
4347.

The curl of velocity equals to _______

A. velocity
B. pressure
C. vorticity
D. angular velocity
Answer» D. angular velocity
4348.

There are seventeen non-metals in the periodic table. Unlike metals in the same period, they have higher:

A. Atomic number
B. Atomic size
C. Electropositivity
D. All of the mentioned
Answer» B. Atomic size
4349.

Which of the following property specifies the stack order of an element?

A. order
B. z-index
C. p-index
D. auto
Answer» C. p-index
4350.

A device is sending out data at the rate of 1000 bps. How long does it take to send a file of 100,000 characters?

A. 200s
B. 400s
C. 600s
D. 800s
Answer» E.