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.

3751.

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, lagging
B. 0.92, leading
C. 0.95, lagging
D. 0.90, leading
Answer» B. 0.92, leading
3752.

If ‚àá*V is equal to zero, then the flow is _________#

A. steady
B. unsteady
C. rotational
D. irrotational
Answer» E.
3753.

Which of the following is not an application of dacron?

A. Magnetic recording tapes
B. Wide-necked jars for coffee
C. Car heater
D. Window shades
Answer» E.
3754.

The instar learning law can be represented by equation?

A. ∆wjk= µ(bj – wjk), where the kth unit is the only active in the input layer
B. ∆wij= µ(bi – si) aj
C. ∆wij= µ(bi – si) aj Á(xi),wher Á(xi) is derivative of xi
D. ∆wij= µ(si) aj
Answer» B. ‚Äö√Ñ√∂‚àö‚Ć‚àö√∫wij= ¬¨¬®¬¨¬µ(bi ‚Äö√Ñ√∂‚àö√ë‚àö¬® si) aj
3755.

Which of the following is not a type of solid state welding?

A. Projection
B. Ultrasonic
C. Friction
D. Diffusion
Answer» B. Ultrasonic
3756.

Dust from steel manufacturing is example for ____ waste category.

A. Organic aqueous
B. Inorganic aqueous
C. Organic liquid
D. Inorganic sludge
Answer» E.
3757.

Maqetta is an open source initiative of the Dojo Foundation to geared towards visual designers through a WYSIWYG user interface.

A. True
B. False
Answer» B. False
3758.

In real life, zero drag is acceptable.

A. True
B. False
Answer» C.
3759.

What will be the summation of the entire individual floor lateral seismic load?

A. 4V
B. 3V
C. 2V
D. V
Answer» C. 2V
3760.

The axial regions have to be avoided and there is no alternative method to utilize the place. State true or false.

A. False
B. True
Answer» B. True
3761.

In the equation Cd=1/K(0.5) what does K mean ?

A. Pressure drop inside the nozzle
B. Mass flow rate
C. Flow resistance
D. None of the mentioned
Answer» D. None of the mentioned
3762.

If a person all the people in Music department gets fired which of the following has to be performed on the instructor relation ?

A. Delete Dept_name=Music in instructor;
B. Delete from instructor where Dept_name=Music;
C. Remove Dept_name= Music
D. All of the mentioned
Answer» B. Delete from instructor where Dept_name=Music;
3763.

What is the degree of freedom of space roller joint?

A. 0
B. 1
C. 2
D. 3
Answer» C. 2
3764.

_______ acts as a shock absorber to cushion when tibia and femur come together.

A. Disc
B. Tendon
C. Ligament
D. Cartilage
Answer» E.
3765.

With an increase in side cutting edge angle keeping width of cut constant, depth of cut will

A. Increase
B. Decrease
C. First increase then decrease
D. Remains constant
Answer» C. First increase then decrease
3766.

The design essentially considered for axial tension is to determine the:

A. Deflection
B. Eccentricity
C. Cross section
D. Loads
Answer» D. Loads
3767.

Congestion of lungs in one of the main symptoms in ________

A. Heart failure
B. Angina
C. Hypotension
D. Atherosclerosis
Answer» E.
3768.

If y = sin-1x, then

A. (1-x<sup>2</sup>)y<sub>n+2</sub> – xy<sub>n+1</sub>(2n-1) = ny<sub>n</sub>(2n-1)
B. x<sup>2</sup>y<sub>n+2</sub> – xy<sub>n+1</sub>(2n-1) = ny<sub>n</sub>(2n-1)
C. (1-x<sup>2</sup>)y<sub>n+2</sub> – 2nxy<sub>n+1</sub> = ny<sub>n</sub>(2n-1)
D. (1-x<sup>2</sup>)y<sub>n+2</sub> – xy<sub>n+1</sub>(2n-1) +ny<sub>n</sub>(2n-1)=0
Answer» B. x<sup>2</sup>y<sub>n+2</sub> ‚Äö√Ñ√∂‚àö√ë‚àö¬® xy<sub>n+1</sub>(2n-1) = ny<sub>n</sub>(2n-1)
3769.

____________ is a client or database-generated identifier that uniquely identifies this message.

A. messageLength
B. responseTo
C. requestID
D. all of the mentioned
Answer» D. all of the mentioned
3770.

In second stage, hydrocarbons are converted to _____ in hydrogenation of gas oils?

A. Gasoline range
B. Liquid-line range
C. Solid range
D. All of the mentioned
Answer» B. Liquid-line range
3771.

Hatching is compatible with

A. monochrome encoding
B. bicode encoding
C. tricode encoding
D. not compatible with any encoding
Answer» B. bicode encoding
3772.

The yield of liquid reaction products during hydrogenation depends on what?

A. Solidification
B. Liquefaction
C. Gasification
D. None of the mentioned
Answer» D. None of the mentioned
3773.

When a block is warm, some of its replicas are stored in DISK and the remaining replicas are stored in :

A. ROM_DISK
B. ARCHIVE
C. RAM_DISK
D. All of the mentioned
Answer» C. RAM_DISK
3774.

A closed U-tube manometer has a gas on one end with pressure 5 Pa and other end has vacuum, what is the approximate height difference of the liquid if the density of liquid is 10 Kg/m3?

A. 5 mm
B. 10 mm
C. 50 mm
D. 100 mm
Answer» D. 100 mm
3775.

Which method is used to abort thread prior to it’s normal execution?$

A. sleep()
B. terminate()
C. suspend()
D. Abort()
Answer» E.
3776.

Power dissipation per gate is scaled by

A. 1/α
B. 1/β
C. 1/α<sup>2</sup>
D. 1/β<sup>2</sup>
Answer» E.
3777.

How many memory locations can be accessed by 8086?

A. 1 M
B. 2 M
C. 3 M
D. 4 M
Answer» B. 2 M
3778.

In which scheme does the data write via a buffer to the main memory?

A. write buffer
B. write-back
C. write-through
D. no caching of the write cycle
Answer» B. write-back
3779.

When you purchase shrink-wrapped software, you are using that software based on a licensing agreement called ________

A. EULA
B. EUL
C. ELA
D. All of the mentioned
Answer» B. EUL
3780.

Maximum virtual memory of the launched child-task is specified using :

A. mapv
B. mapred
C. mapvim
D. All of the mentioned
Answer» C. mapvim
3781.

In a steady-state reactive system, 2 molar NaCl and 1 molar H2CO3 are supplied to the system both at the rate of 100 mole/min, then how much Na2CO3 produced?

A. 1 molar
B. 2 molar
C. 3 molar
D. 4 molar
Answer» B. 2 molar
3782.

In a DC machine, what is the torque induced beyond the pole shoes?

A. 0
B. 2/π *∅*i
C. π *∅*i/2
D. Can’t be calculated
Answer» B. 2/‚âà√¨‚àö√ë *‚Äö√Ñ√∂‚àö‚Ć‚àö√±*i
3783.

Part A of Schedule IV is for ____

A. Import
B. Export
C. Recyclable HW
D. Fuel recycle
Answer» E.
3784.

Which heat exchanger used for heating and cooling viscous, sticky and lumpy products?

A. Plate heat exchanger
B. Tubular heat exchanger
C. Scraped surface heat exchanger
D. Spray dryer
Answer» D. Spray dryer
3785.

Dry etching produces more vertical side walls compared to wet etching.

A. True
B. False
Answer» B. False
3786.

Find the name of those cities with temperature and condition whose condition is either sunny or cloudy but temperature must be greater than 70.

A. SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ AND condition = ‘cloudy’ OR temperature > 70
B. SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ OR condition = ‘cloudy’ OR temperature > 70
C. SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ OR condition = ‘cloudy’ AND temperature > 70
D. SELECT city, temperature, condition FROM weather WHERE condition = ‘sunny’ AND condition = ‘cloudy’ AND temperature > 70
Answer» D. SELECT city, temperature, condition FROM weather WHERE condition = ‚Äö√Ñ√∂‚àö√ë‚àö‚â§sunny‚Äö√Ñ√∂‚àö√ë‚àö¬• AND condition = ‚Äö√Ñ√∂‚àö√ë‚àö‚â§cloudy‚Äö√Ñ√∂‚àö√ë‚àö¬• AND temperature > 70
3787.

For computing painting estimate for a venetian what times area is considered?

A. 2 times 1 surface area, both sides
B. 1 times 1 surface area,1 side
C. 1 times 1 surface area, for both sides
D. 3 times 1 surface area, both sides
Answer» E.
3788.

If the feed temperature is 211oK and Dew point is 70oF, then tn is

A. 68<sup>o</sup>F
B. 178<sup>o</sup>F
C. 140.5<sup>o</sup>F
D. 259.5<sup>o</sup>F
Answer» D. 259.5<sup>o</sup>F
3789.

Which value of μ corresponds to linear amplification?$

A. μ=0
B. μ=1
C. μ>0
D. μ<0
Answer» B. ‚âà√≠¬¨‚à´=1
3790.

The major constituent of butyl rubber is

A. Isobutylene
B. Isoprene
C. Chloroprene
D. Acrylonitrile
Answer» B. Isoprene
3791.

What is the coordination number of carbon in the graphite structure?

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
3792.

Amylase works in pH as _________

A. 1.3 – 2.5
B. 2.5 – 5.7
C. 5.7 – 6.8
D. 6.8 – 7.2
Answer» E.
3793.

Which of the following applies architectural approach?

A. The modular structure
B. Maintaining Large pre integrated chunks
C. Maintaining the component base as new systems are produced
D. All of the mentioned
Answer» E.
3794.

Carbon dioxide cannot be transported with hemoglobin.

A. True
B. False
Answer» C.
3795.

What is the purpose of the DocumentFragment node type?

A. To hold a portion of a document
B. To split the document into fragments
C. To hold the entire document
D. To hold the fragments
Answer» B. To split the document into fragments
3796.

Total vertical pressure at any plane is equal to__________

A. σ = σ’ + u
B. σ’ = σ + u
C. σ = σ’ + v
D. None of the mentioned
Answer» B. ‚âà√¨‚àö√¢‚Äö√Ñ√∂‚àö√ë‚àö¬• = ‚âà√¨‚àö√¢ + u
3797.

Braking system consists of _________

A. bar magnet
B. temporary magnet
C. permanent magnet
D. super magnet
Answer» D. super magnet
3798.

The percentage of total energy input appearing as network output of the cycle

A. Thermal efficiency
B. Combustion efficiency
C. Engine efficiency
D. Compression efficiency
Answer» B. Combustion efficiency
3799.

a b c

A. NA NA NA
B. 0 1 2
C. None of the mentioned
Answer» C. None of the mentioned
3800.

The dependency notation “>=1” inside a block stands for which operation?$

A. OR
B. XOR
C. AND
D. XNOR
Answer» B. XOR