MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
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.
| 201. |
What is the undesirable product in urea production? |
| A. | Ammonium carbonate |
| B. | Biuret formation |
| C. | Liquid NH3 |
| D. | Flakes formation |
| Answer» C. Liquid NH3 | |
| 202. |
Which process is associated with urea production? |
| A. | High pressure stripping operation |
| B. | Low temperature stripping operation |
| C. | Low pressure stripping operation |
| D. | Low temperature stripping operation |
| Answer» D. Low temperature stripping operation | |
| 203. |
What is the highest end use of urea? |
| A. | solid fertilizer |
| B. | liquid fertilizer |
| C. | formaldehyde resin |
| D. | melamine |
| Answer» B. liquid fertilizer | |
| 204. |
Choose the statement which defines the Nullable type Correctly:a) A special version of a value type that is represented by a structureb) A nullable type can also store the value nullc) Nullable types are objects of System.Nullable, where T must be a non nullable value typed) All of the mentioned Answer: dExplanation: A nullable type is a special version of the value type that is represented by a structure. In addition to the values defined by the underlying type, a nullable type can also store the value null. Thus, a nullable type has the same range and characteristics as its underlying type. It simply adds the ability to represent a value which indicates that a variable of that type is unassigned. Nullable types are objects of System.Nullable, where T must be a nonnullable value type.7. What does the following code depicts? i. System.Nullable count;_x000D_ ii. bool? done;a) Code i declares the objects of nullable of type Nullable defined in the System namespaceb) Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’c) Both Code i declares the objects of nullable of type Nullable defined in the System namespace & Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’d) None of the mentioned Answer: cExplanation: None.8. Which operator is commonly used to find the size of the type of C#?a) size()b) sizeof(type)c) both size() & sizeof(type)d) none of the mentioned Answer: bExplanation: None.9. What will be the output of the following C# code snippet? unsafe struct FixedBankRecord { public fixed byte Name[80]; public double Balance; public long ID; } class UnsafeCode { unsafe static void Main() { Console.WriteLine("Size of FixedBankRecord is " + sizeof(FixedBankRecord)); Console.ReadLine(); } } |
| A. | A special version of a value type that is represented by a structureb) A nullable type can also store the value nullc) Nullable types are objects of System.Nullable, where T must be a non nullable value typed) All of the mentioned Answer: dExplanation: A nullable type is a special version of the value type that is represented by a structure. In addition to the values defined by the underlying type, a nullable type can also store the value null. Thus, a nullable type has the same range and characteristics as its underlying type. It simply adds the ability to represent a value which indicates that a variable of that type is unassigned. Nullable types are objects of System.Nullable<T>, where T must be a nonnullable value type.7. What does the following code depicts? i. System.Nullable count;_x000D_ ii. bool? done;a) Code i declares the objects of nullable of type Nullable<T> defined in the System namespaceb) Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’c) Both Code i declares the objects of nullable of type Nullable<T> defined in the System namespace & Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’d) None of the mentioned Answer: cExplanation: None.8. Which operator is commonly used to find the size of the type of C#?a) size()b) sizeof(type)c) both size() & sizeof(type)d) none of the mentioned Answer: bExplanation: None.9. What will be the output of the following C# code snippet? unsafe struct FixedBankRecord { public fixed byte Name[80]; public double Balance; public long ID; } class UnsafeCode { unsafe static void Main() { Console.WriteLine("Size of FixedBankRecord is " + sizeof(FixedBankRecord)); Console.ReadLine(); } }a) Run time error |
| B. | A nullable type can also store the value nullc) Nullable types are objects of System.Nullable, where T must be a non nullable value typed) All of the mentioned Answer: dExplanation: A nullable type is a special version of the value type that is represented by a structure. In addition to the values defined by the underlying type, a nullable type can also store the value null. Thus, a nullable type has the same range and characteristics as its underlying type. It simply adds the ability to represent a value which indicates that a variable of that type is unassigned. Nullable types are objects of System.Nullable<T>, where T must be a nonnullable value type.7. What does the following code depicts? i. System.Nullable count;_x000D_ ii. bool? done;a) Code i declares the objects of nullable of type Nullable<T> defined in the System namespaceb) Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’c) Both Code i declares the objects of nullable of type Nullable<T> defined in the System namespace & Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’d) None of the mentioned Answer: cExplanation: None.8. Which operator is commonly used to find the size of the type of C#?a) size()b) sizeof(type)c) both size() & sizeof(type)d) none of the mentioned Answer: bExplanation: None.9. What will be the output of the following C# code snippet? unsafe struct FixedBankRecord { public fixed byte Name[80]; public double Balance; public long ID; } class UnsafeCode { unsafe static void Main() { Console.WriteLine("Size of FixedBankRecord is " + sizeof(FixedBankRecord)); Console.ReadLine(); } }a) Run time errorb) 80 |
| C. | Nullable types are objects of System.Nullable, where T must be a non nullable value typed) All of the mentioned Answer: dExplanation: A nullable type is a special version of the value type that is represented by a structure. In addition to the values defined by the underlying type, a nullable type can also store the value null. Thus, a nullable type has the same range and characteristics as its underlying type. It simply adds the ability to represent a value which indicates that a variable of that type is unassigned. Nullable types are objects of System.Nullable<T>, where T must be a nonnullable value type.7. What does the following code depicts? i. System.Nullable count;_x000D_ ii. bool? done;a) Code i declares the objects of nullable of type Nullable<T> defined in the System namespaceb) Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’c) Both Code i declares the objects of nullable of type Nullable<T> defined in the System namespace & Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’d) None of the mentioned Answer: cExplanation: None.8. Which operator is commonly used to find the size of the type of C#?a) size()b) sizeof(type)c) both size() & sizeof(type)d) none of the mentioned Answer: bExplanation: None.9. What will be the output of the following C# code snippet? unsafe struct FixedBankRecord { public fixed byte Name[80]; public double Balance; public long ID; } class UnsafeCode { unsafe static void Main() { Console.WriteLine("Size of FixedBankRecord is " + sizeof(FixedBankRecord)); Console.ReadLine(); } }a) Run time errorb) 80c) 96 |
| D. | All of the mentioned Answer: dExplanation: A nullable type is a special version of the value type that is represented by a structure. In addition to the values defined by the underlying type, a nullable type can also store the value null. Thus, a nullable type has the same range and characteristics as its underlying type. It simply adds the ability to represent a value which indicates that a variable of that type is unassigned. Nullable types are objects of System.Nullable<T>, where T must be a nonnullable value type.7. What does the following code depicts? i. System.Nullable count;_x000D_ ii. bool? done;a) Code i declares the objects of nullable of type Nullable<T> defined in the System namespaceb) Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’c) Both Code i declares the objects of nullable of type Nullable<T> defined in the System namespace & Code ii declares a nullable type in much shorter and in more commonly used way using ‘?’d) None of the mentioned Answer: cExplanation: None.8. Which operator is commonly used to find the size of the type of C#?a) size()b) sizeof(type)c) both size() & sizeof(typ |
| E. | both size() & sizeof(type)d) none of the mentioned Answer: bExplanation: None.9. What will be the output of the following C# code snippet? unsafe struct FixedBankRecord { public fixed byte Name[80]; public double Balance; public long ID; } class UnsafeCode { unsafe static void Main() { Console.WriteLine("Size of FixedBankRecord is " + sizeof(FixedBankRecord)); Console.ReadLine(); } }a) Run time errorb) 80c) 96d) Compile time error Answer: cExplanation: The purpose of a fixed-size buffer is to allow the creation of a struct in which the array of elements that make up the buffer are contained within the struct. By using a fixed-size buffer, we let the entire array to be contained within the struct. The overall size of FixedBankRecord is 96, which is the sum of its members.Output : |
| Answer» E. both size() & sizeof(type)d) none of the mentioned Answer: bExplanation: None.9. What will be the output of the following C# code snippet? unsafe struct FixedBankRecord { public fixed byte Name[80]; public double Balance; public long ID; } class UnsafeCode { unsafe static void Main() { Console.WriteLine("Size of FixedBankRecord is " + sizeof(FixedBankRecord)); Console.ReadLine(); } }a) Run time errorb) 80c) 96d) Compile time error Answer: cExplanation: The purpose of a fixed-size buffer is to allow the creation of a struct in which the array of elements that make up the buffer are contained within the struct. By using a fixed-size buffer, we let the entire array to be contained within the struct. The overall size of FixedBankRecord is 96, which is the sum of its members.Output : | |
| 205. |
The axial length of 16 coils = axial length of each coil * 16. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 206. |
What is the range for the current density at HT side for a distribution transformer? |
| A. | 2.4-3.5 Amp per mm2 |
| B. | 2-2.5 Amp per mm2 |
| C. | 1-3.5 Amp per mm2 |
| D. | 2-3.5 Amp per mm2 |
| Answer» C. 1-3.5 Amp per mm2 | |
| 207. |
What is the assumption for width of the largest stamping for the stepped core transformer? |
| A. | 0.9*d |
| B. | 0.71*d |
| C. | 0.85*d |
| D. | 0.8*d |
| Answer» B. 0.71*d | |
| 208. |
What is the formula for the inside diameter of the low voltage windings? |
| A. | inside diameter = diameter of the circumscribing circle + pressboard thickness insulation between l.v winding and core |
| B. | inside diameter = diameter of the circumscribing circle – pressboard thickness insulation between l.v winding and core |
| C. | inside diameter = diameter of the circumscribing circle + 2*pressboard thickness insulation between l.v winding and core |
| D. | inside diameter = diameter of the circumscribing circle – 2* pressboard thickness insulation between l.v winding and core |
| Answer» D. inside diameter = diameter of the circumscribing circle – 2* pressboard thickness insulation between l.v winding and core | |
| 209. |
What is the formula to calculate the radial depth of low voltage windings? |
| A. | radial depth of the lv windings = number of layers * radial depth of the conductors * insulation between layers |
| B. | radial depth of the lv windings = number of layers * radial depth of the conductors – insulation between layers |
| C. | radial depth of the lv windings = number of layers / radial depth of the conductors + insulation between layers |
| D. | radial depth of the lv windings = number of layers * radial depth of the conductors + insulation between layers |
| Answer» E. | |
| 210. |
What is the formula for the window clearance of the transformer? |
| A. | window clearance = (height of the window + axial depth)/2 |
| B. | window clearance = (height of the window – axial depth) |
| C. | window clearance = (height of the window – axial depth)/2 |
| D. | window clearance = (height of the window + axial depth) |
| Answer» D. window clearance = (height of the window + axial depth) | |
| 211. |
What is the formula for the height and width of the single phase shell transformer? |
| A. | width = 2*width of the window + 4*width of the largest stamping, height = height of the window + 2*width of the largest stamping |
| B. | width = 2*width of the window – 4*width of the largest stamping, height = height of the window + 2*width of the largest stamping |
| C. | width = 2*width of the window + 4*width of the largest stamping, height = height of the window – 2*width of the largest stamping |
| D. | width = 2*width of the window – 4*width of the largest stamping, height = height of the window -2*width of the largest stamping |
| Answer» B. width = 2*width of the window – 4*width of the largest stamping, height = height of the window + 2*width of the largest stamping | |
| 212. |
What is the formula for the depth and height of the yoke for stepped core?a) depth = width of largest stamping, height = 2* width of largest stampingb) depth = 2*width of largest stamping, height = width of largest stampingc) depth = width of largest stamping, height = width of largest stampingd) depth = 2*width of largest stamping, height = 2* width of largest stamping 2.The height and the width of the single phase and three phase core type transformers are equal. |
| A. | depth = width of largest stamping, height = 2* width of largest stampingb) depth = 2*width of largest stamping, height = width of largest stampingc) depth = width of largest stamping, height = width of largest stampingd) depth = 2*width of largest stamping, height = 2* width of largest stamping 2.The height and the width of the single phase and three phase core type transformers are equal.a) true |
| B. | depth = 2*width of largest stamping, height = width of largest stamping |
| C. | depth = width of largest stamping, height = width of largest stamping |
| D. | depth = 2*width of largest stamping, height = 2* width of largest stamping 2.The height and the width of the single phase and three phase core type transformers are equal.a) trueb) falseView Answer |
| Answer» D. depth = 2*width of largest stamping, height = 2* width of largest stamping 2.The height and the width of the single phase and three phase core type transformers are equal.a) trueb) falseView Answer | |
| 213. |
Choose the CSS property which specifies the placement of a table caption. |
| A. | table-caption |
| B. | cell-caption |
| C. | caption-side |
| D. | caption-adjust |
| Answer» D. caption-adjust | |
| 214. |
Which of the following property aligns the flexible container’s items when the items do not use all available space on the main-axis? |
| A. | wrap-content |
| B. | fix-content |
| C. | adjust-content |
| D. | justify-content |
| Answer» E. | |
| 215. |
Which of the following CSS property sets the opacity level for an element? |
| A. | opacity |
| B. | transparency |
| C. | transparent |
| D. | all of the mentioned |
| Answer» B. transparency | |
| 216. |
_________________ binders are used for large dry sand cores. |
| A. | Sulfate Binders |
| B. | Pitch |
| C. | Dextrin |
| D. | Gelatinalized Starch |
| Answer» B. Pitch | |
| 217. |
What will be the shape of Rankine oval when sin θ=0? |
| A. | vertical line |
| B. | horizontal line |
| C. | a point |
| D. | curve |
| Answer» C. a point | |
| 218. |
A combination of uniform flow and doublet flow gives ______________ |
| A. | flow past a circular cylinder |
| B. | flow past a wedge |
| C. | flow past a plate |
| D. | flow over any body |
| Answer» B. flow past a wedge | |
| 219. |
K’I are determined at |
| A. | Top section Temperatures |
| B. | Bottom section Temperatures |
| C. | Middle section Temperatures |
| D. | Right section Temperatures |
| Answer» C. Middle section Temperatures | |
| 220. |
Ki are determined at the |
| A. | Top section Temperatures |
| B. | Bottom section Temperatures |
| C. | Middle section Temperatures |
| D. | Right section Temperatures |
| Answer» B. Bottom section Temperatures | |
| 221. |
If the feed temperature is 2110K and Bubble point is 70oF, then tm is |
| A. | 68oF |
| B. | 178oF |
| C. | 140.5oF |
| D. | 259.5oF |
| Answer» E. | |
| 222. |
If the feed temperature is 211oK and Dew point is 70oF, then tn is |
| A. | 68oF |
| B. | 178oF |
| C. | 140.5oF |
| D. | 259.5oF |
| Answer» D. 259.5oF | |
| 223. |
Brinkley Method can be used for,i) Distillationii) Leachingiii) Absorption |
| A. | True |
| B. | False |
| Answer» B. False | |
| 224. |
Choose the incorrect statement with respect to the use of FD in half-wave circuits. |
| A. | Input pf is improved |
| B. | Load current waveform is improved |
| C. | It prevents the load voltage from becoming negative |
| D. | Reduces the reverse voltage (PIV) faced by the SCR |
| Answer» E. | |
| 225. |
A single phase half-wave controlled rectifier has 400 sin314t as the input voltage and R as the load. For a firing angle of 60°,the average output voltage is |
| A. | 200/π |
| B. | 300/π |
| C. | 100/π |
| D. | 400/π |
| Answer» C. 100/π | |
| 226. |
A single-phase HW rectifier with a FD is supplied by Vs = 240 V, 50 Hz, AC with a load R = 10 Ω, L = 0.5 mH and a firing angle α = 30°. Find the average value of the load current. |
| A. | 10 A |
| B. | 0.063 A |
| C. | 6.3 A |
| D. | 0.1 A |
| Answer» B. 0.063 A | |
| 227. |
A single-phase half wave rectifier with a FD is supplied by Vs = 240 V, AC with a load R = 10 Ω, L = 0.5 mH and a firing angle α = 30°. Find the average value of the load voltage. |
| A. | 50 V |
| B. | 100 V |
| C. | 150 V |
| D. | 200 V |
| Answer» C. 150 V | |
| 228. |
The output voltage waveform of the below given circuit would be the same that obtained from a |
| A. | full-wave R load circuit |
| B. | half-wave R load circuit |
| C. | half-wave RL load circuit |
| D. | full-wave RL load with freewheeling diode |
| Answer» C. half-wave RL load circuit | |
| 229. |
In the below given circuit, when the commutating diode or FD is conducting than the |
| A. | SCR has reverse bias voltage and the load current is zero |
| B. | SCR has reverse bias voltage and the load current is positive |
| C. | SCR has forward bias voltage and the load current is zero |
| D. | SCR has forward bias voltage and the load current is positive |
| Answer» C. SCR has forward bias voltage and the load current is zero | |
| 230. |
In the below given circuit, the FD (Freewheeling diode) is forward biased at ωt = |
| A. | 0 |
| B. | α |
| C. | π |
| D. | 2π |
| E. | is forward biased at ωt =a) 0b) αc) πd) 2π |
| Answer» D. 2π | |
| 231. |
The simple elbow draft tube is placed close to the_______ |
| A. | Head race |
| B. | Tail race |
| C. | Tank |
| D. | Nozzle |
| Answer» C. Tank | |
| 232. |
The main difference between reaction turbine and outward radial flow reaction turbine is water flows __________ |
| A. | Radial direction |
| B. | Radially inward |
| C. | Radially outward |
| D. | Axial direction |
| Answer» C. Radially outward | |
| 233. |
In outward radial flow reaction turbine if thickness is considered then discharge is ____________ |
| A. | (P1-n*t)*b1*Vf1 |
| B. | (P2-n*t)*b2*Vf2 |
| C. | (P1-n*t)*b2*Vf2 |
| D. | Both (P1-n*t)*b1*Vf1 & (P2-n*t)*b2*Vf2 |
| Answer» E. | |
| 234. |
In outward radial flow reaction turbine if angle made by absolute velocity with its tangent is 90 degrees and component of whirl is zero at inlet is _______________ |
| A. | Radial inlet discharge |
| B. | Radial outlet discharge |
| C. | Flow ratio |
| D. | Speed ratio |
| Answer» B. Radial outlet discharge | |
| 235. |
In outward flow reaction turbine tangential velocity at inlet is always__________than outlet velocity. |
| A. | Equal |
| B. | Less |
| C. | More |
| D. | Constant |
| Answer» C. More | |
| 236. |
Outward flow reaction turbine will quite suitable for_____________ |
| A. | High head |
| B. | Medium head |
| C. | Low head |
| D. | Static head |
| Answer» C. Low head | |
| 237. |
The outward radial flow reaction turbine is a turbine in which direction of water flow is ___________ |
| A. | Radial direction |
| B. | Radially inward |
| C. | Radially outward |
| D. | Axial direction |
| Answer» D. Axial direction | |
| 238. |
The coefficient of permeability by Packer for length in the range 10r > L ≥r test is given by ________ |
| A. | \(k=\frac{q}{2πh}log_{10} \frac{L}{r} \) |
| B. | \(k=\frac{q}{2πLh}log_{10} \frac{L}{r} \) |
| C. | \(k=\frac{q}{2Lh}log_{10} \frac{L}{r} \) |
| D. | \(k=\frac{q}{2πLh}sinh^{-1}\frac{L}{2r} \) |
| Answer» E. | |
| 239. |
The coefficient of permeability by Packer for length greater than ten times the radius test is given by ________ |
| A. | \(k=\frac{q}{2πh}log_{10} \frac{L}{r}\) |
| B. | \(k=\frac{v}{2πLh}log_{10} \frac{L}{r}\) |
| C. | \(k=\frac{q}{2Lh}log_{10} \frac{L}{r}\) |
| D. | \(k=\frac{q}{2πLh}log_{10} \frac{L}{r}\) |
| Answer» B. \(k=\frac{v}{2πLh}log_{10} \frac{L}{r}\) | |
| 240. |
The formula for the open-end test is given by _________ |
| A. | \(k=\frac{q}{5.5rh} \) |
| B. | \(k=\frac{5.5rh}{q} \) |
| C. | \(k=\frac{q}{5rh} \) |
| D. | \(k=\frac{q}{0.5rh} \) |
| Answer» B. \(k=\frac{5.5rh}{q} \) | |
| 241. |
The U.S. Bureau of Reclamation (Earth manual 1960) has devised two types of pumping-in tests _________ |
| A. | open-end test and packer test |
| B. | permeability test and radio test |
| C. | dupin test and influence test |
| D. | falling head and constant head permeability test |
| Answer» B. permeability test and radio test | |
| 242. |
In the field determination, pumping must continue at a ________ |
| A. | uniform rate for sufficient time to approach steady state |
| B. | non- uniform rate for sufficient time to approach steady state |
| C. | uniform rate until just before time to approach steady state |
| D. | non-uniform rate until just before time to approach steady state |
| Answer» B. non- uniform rate for sufficient time to approach steady state | |
| 243. |
The permeability of the aquifer is ________ if the drawdown is 4m, discharge is 40litres/sec, thickness of confined aquifer is 30m and the radius of the well is 0.1m. The radius of influence is taken as 245m. |
| A. | 36 m/day |
| B. | 30 m/day |
| C. | 26 m/day |
| D. | 20 m/day |
| Answer» B. 30 m/day | |
| 244. |
The formula for the pumping out test in an unconfined aquifer is given by _________ |
| A. | \(k=\frac{qπ}{1.36(H^2-h^2)}log_{10}\frac{R}{r} \) |
| B. | \(k=\frac{q}{1.36(H^2-h^2)}log_{10}\frac{R}{r} \) |
| C. | \(k=\frac{q}{π(H^2-h^2)}log_{10}\frac{R}{r} \) |
| D. | \(k=\frac{q}{1.36(H^2-h^2)} \) |
| Answer» C. \(k=\frac{q}{π(H^2-h^2)}log_{10}\frac{R}{r} \) | |
| 245. |
The method in which it uses the alphabet for dimensioning is called as ________ |
| A. | vertical dimensioning |
| B. | tabular dimensioning |
| C. | combined dimensioning |
| D. | horizontal dimensioning |
| Answer» C. combined dimensioning | |
| 246. |
The method in which it uses the same reference or datum which is used by another dimensioning method is called __________ |
| A. | vertical dimensioning |
| B. | inclined dimensioning |
| C. | combined dimensioning |
| D. | horizontal dimensioning |
| Answer» D. horizontal dimensioning | |
| 247. |
The dimension which is measured with the help of the reference line is called _________ |
| A. | parallel dimensioning |
| B. | superimposed running dimensioning |
| C. | combined dimensioning |
| D. | tabular dimensioning |
| Answer» B. superimposed running dimensioning | |
| 248. |
The method which starts with a circle is called as ___________ |
| A. | parallel dimensioning |
| B. | superimposed running dimensioning |
| C. | combined dimensioning |
| D. | tabular dimensioning |
| Answer» C. combined dimensioning | |
| 249. |
The method in which the series of dimensions are applied from one point to other is called _________ |
| A. | Parallel dimension |
| B. | Chain dimensioning |
| C. | Combined dimensioning |
| D. | Tabular dimensioning |
| Answer» C. Combined dimensioning | |
| 250. |
In dimensioning a 2D sketch, to dimension the radius of the arc ________ |
| A. | click on the two end points of arc |
| B. | click on the arc only |
| C. | click one of the end point and the arc |
| D. | click on the center point and arc |
| Answer» C. click one of the end point and the arc | |