MCQOPTIONS
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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.
| 451. |
The permeability of an aquifer (m/day) will ____________ |
| A. | increase with an increase in temperature of water flowing through the aquifer |
| B. | decrease with an increase in temperature of water flowing through the aquifer |
| C. | not get affected by the change in temperature of water flowing through the aquifer |
| D. | increase up to 20°C and then decreases with the increase in the temperature of water flowing through the aquifer |
| Answer» B. decrease with an increase in temperature of water flowing through the aquifer | |
| 452. |
The line joining the static water levels in several wells excavated through a confined aquifer is known as the _____________ |
| A. | cone of depression |
| B. | piezometric surface |
| C. | perched water-table |
| D. | hypsometric curve |
| Answer» C. perched water-table | |
| 453. |
Which of the relationship between E, G and K is true, where E, G and K have their usual meanings? |
| A. | E = 9KC / (3K + C) |
| B. | E = 9KC / (9K + C) |
| C. | E = 3KC / (9K + C) |
| D. | E = 3KC / (3K + C) |
| Answer» B. E = 9KC / (9K + C) | |
| 454. |
What is the relationship between the linear elastic properties Youngs modulus, bulk modulus and rigidity modulus? |
| A. | 1/E = 9/k + 3/G |
| B. | 9/E = 3/K + 1/G |
| C. | 3/E = 9/K + 1/G |
| D. | 9/E = 1/K + 3/G |
| Answer» E. | |
| 455. |
Consider the following statements: X. Two-dimensional stresses applied to a thin plater in its own plane represent the plane stress condition. Y. Normal and shear stresses may occur simultaneously on a plane. Z. Under plane stress condition, the strain in the direction perpendicular to the plane is zero.Which of the above statements are correct? |
| A. | 2 only |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» E. | |
| 456. |
If a material had a modulus of elasticity of 2.1 kgf/cm2 and a modulus of rigidity of 0.8 kgf/cm2 then what will be the approximate value of the Poissons ratio? |
| A. | 0.26 |
| B. | 0.31 |
| C. | 0.47 |
| D. | 0.43 |
| Answer» C. 0.47 | |
| 457. |
If E,G and K have their usual meanings, for an elastic material, then which one of the following be possibly true? |
| A. | G = 2K |
| B. | G = K |
| C. | K = E |
| D. | G = E = K |
| Answer» D. G = E = K | |
| 458. |
Youngs modulus of elasticity and Poissons ratio of a material are 1.25 x 102 MPa and 0.34 respectively. The modulus of rigidity of the material is __________ |
| A. | 0.9469 MPa |
| B. | 0.8375 MPa |
| C. | 0.4664 MPa |
| D. | 0.4025 MPa |
| Answer» D. 0.4025 MPa | |
| 459. |
E, G, K and μ elastic modulus, shear modulus, bulk modulus and Poisson’s 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 | |
| 460. |
The relationship between Youngs modulus E, bulk modulus K if the value of Poissons ratio is unity will be __________ |
| A. | E = -3K |
| B. | K = -3E |
| C. | E = 0 |
| D. | K = 0 |
| Answer» B. K = -3E | |
| 461. |
What is the ratio of Youngs modulus E to shear modulus G in terms of Poissons ratio? |
| A. | 2(1 + μ) |
| B. | 2(1 – μ) |
| C. | 1/2 (1 – μ) |
| D. | 1/2 (1 + μ) |
| Answer» B. 2(1 – μ) | |
| 462. |
Prying forces are |
| A. | friction forces |
| B. | shear forced |
| C. | tensile forces |
| D. | bending forces |
| Answer» D. bending forces | |
| 463. |
Strength of bolt is |
| A. | minimum of shear strength and bearing capacity of bolt |
| B. | maximum of shear strength and bearing capacity of bolt |
| C. | shear strength of bolt |
| D. | bearing capacity of bolt |
| Answer» B. maximum of shear strength and bearing capacity of bolt | |
| 464. |
Which of the following equation is correct for bolt subjected to combined shear and tension? |
| A. | (Vsb/Vdb)2 + (Tsb/Tdb)2 ≤ 1b) (Vsb/Vdb)2 + (Tsb/Tdb)2 ≥ 1c) (Vsb/Vdb) + (Tsb/Tdb) ≤ 1d) (Vsb/Vdb) + (Tsb/Td |
| B. | 2 + (Tsb/Tdb)2 ≤ 1b) (Vsb/Vdb)2 + (Tsb/Tdb)2 ≥ 1 |
| C. | (Vsb/Vdb) + (Tsb/Tdb) ≤ 1 |
| D. | (Vsb/Vdb) + (Tsb/Tdb) ≥ 1 |
| Answer» B. 2 + (Tsb/Tdb)2 ≤ 1b) (Vsb/Vdb)2 + (Tsb/Tdb)2 ≥ 1 | |
| 465. |
There is always a loss of some energy as heat during energy flows through an ecosystem. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 466. |
Into how many areas the energy that is received by organisms during energy transfer is converted? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 467. |
How many percents of energy transferred from one trophic level to the next higher level? |
| A. | 10% |
| B. | 20% |
| C. | 50% |
| D. | 100% |
| Answer» B. 20% | |
| 468. |
Which form of Sun’s energy is trapped by the producers in the energy flow? |
| A. | Light energy |
| B. | Chemical energy |
| C. | Wind energy |
| D. | Pressure energy |
| Answer» B. Chemical energy | |
| 469. |
What is called for the process of breaking down food to yield energy? |
| A. | Oxidation |
| B. | Photosynthesis |
| C. | Cellular respiration |
| D. | Decomposition |
| Answer» D. Decomposition | |
| 470. |
__________ lignin is the residue extracted after the total acid hydrolysis of carbohydrate portion of wood. It’s a gravimetric method for determining lignin directly in woody materials. |
| A. | Klason |
| B. | Karlson |
| C. | Klux |
| D. | Kurl |
| Answer» B. Karlson | |
| 471. |
Chlorine number = __________ x Roe number. |
| A. | 0.1 |
| B. | 0.20 |
| C. | 0.80 |
| D. | 0.90 |
| Answer» E. | |
| 472. |
The __________ is a test method just like that of Roe, except the CIO2 is generated in sit by acidification of sodium hypochlorite. |
| A. | Klason lignin |
| B. | Kappa number |
| C. | Chlorine number |
| D. | Roe number |
| Answer» D. Roe number | |
| 473. |
The __________ is a measurement of lignin content by the number of grams of gaseous Cl2 consumed by 100 grams dry pulp at 25 °C in 15 minutes. |
| A. | Row number |
| B. | Roe number |
| C. | Chloe number |
| D. | Christ number |
| Answer» C. Chloe number | |
| 474. |
A 40 ml K no. of 10 corresponds to a kappa no. of 14.5, 20 corresponds to 30.4 kappa number, and 30 corresponds to __________ kappa number. |
| A. | 64.1 |
| B. | 32.1 |
| C. | 85.1 |
| D. | 95.1 |
| Answer» B. 32.1 | |
| 475. |
Lignin is easily measured indirectly by measuring the amount of __________ consumed by lignin in a sample of pulp of known mass. |
| A. | Anti oxidant |
| B. | Oxidant |
| C. | Pulp |
| D. | Poison |
| Answer» C. Pulp | |
| 476. |
The measurement of lignin in chemical pulps is a vital tool to monitor the degree of cook (extent of delignification during pulping). |
| A. | True |
| B. | False |
| Answer» B. False | |
| 477. |
Illite has a softening point of about 4500°F. |
| A. | True |
| B. | False |
| Answer» C. | |
| 478. |
What is the softening point of western montmorillonite? |
| A. | 800°F – 1150°F |
| B. | 1200°F – 1650°F |
| C. | 1750°F – 2100°F |
| D. | 2100°F – 2450°F |
| Answer» E. | |
| 479. |
Which of the following is bentonite? |
| A. | Kaolinite |
| B. | Sodium Montmorillonite |
| C. | Illite |
| D. | Limonite |
| Answer» C. Illite | |
| 480. |
On increasing the binder content, what in the moulding sand gets reduced? |
| A. | Hardenability |
| B. | Strength |
| C. | Permeability |
| D. | Brittleness |
| Answer» D. Brittleness | |
| 481. |
Effect of open standards like SMI(s) is _______________ |
| A. | standardization drives software interoperability and interchange ability |
| B. | breaks the old-style dependence on proprietary methods, trade secrets, and single providers |
| C. | builds a strong foundation on which others can quickly build and innovate |
| D. | all of the mentioned |
| Answer» E. | |
| 482. |
Among the following, identify which task is not involved in Storage Capacity management? |
| A. | Identifying storage systems are approaching full capacity |
| B. | Monitoring trends for each resource |
| C. | Tracking Total capacity, total used, total available |
| D. | Preventing unauthorized access to the storage |
| Answer» E. | |
| 483. |
Identify the difficulty a SAN administrator does not incur while dealing with diverse vendors. |
| A. | Proprietary management interfaces |
| B. | Multiple applications to manage storage in the data center |
| C. | No single view |
| D. | Single view |
| Answer» E. | |
| 484. |
When oxygen binds to a heme-containing protein, the two open coordination bonds of Fe2+ are occupied by___________ |
| A. | One O atom and one amino acid atom |
| B. | One O2 molecule and one amino acid atom |
| C. | One O2 molecule and one heme atom |
| D. | Two O atoms |
| Answer» C. One O2 molecule and one heme atom | |
| 485. |
The interactions of ligands with proteins are ___________ |
| A. | Relatively nonspecific |
| B. | Relatively rare in biological systems |
| C. | Usually irreversible |
| D. | Usually transient |
| Answer» E. | |
| 486. |
Myoglobin and the subunits of hemoglobin have ___________ |
| A. | Very different primary and tertiary structures |
| B. | Very similar primary and tertiary structures |
| C. | Very similar primary structures, but different tertiary structures |
| D. | Very similar tertiary structures, but different primary structures |
| Answer» E. | |
| 487. |
In the binding of oxygen to myoglobin, the relationship between the concentration of oxygen and the fraction of binding sites occupied can best be described as ___________ |
| A. | Hyperbolic |
| B. | Linear with a negative slope |
| C. | Linear with a positive slope |
| D. | Parabolic |
| Answer» B. Linear with a negative slope | |
| 488. |
Myoglobin binding of O2 depends on ___________ |
| A. | Hemoglobin concentration |
| B. | O2 concentration and affinity of myoglobin for O2 |
| C. | Ka |
| D. | Kd |
| Answer» C. Ka | |
| 489. |
His93 is also called ________ |
| A. | His F8 |
| B. | His F7 |
| C. | His F6 |
| D. | His F5 |
| Answer» B. His F7 | |
| 490. |
Myoglobin is particularly abundant in ________ |
| A. | Nerves |
| B. | Muscles |
| C. | Blood cells |
| D. | Skin |
| Answer» C. Blood cells | |
| 491. |
An OR gate can be imagined as ____________ |
| A. | Switches connected in series |
| B. | Switches connected in parallel |
| C. | MOS transistor connected in series |
| D. | BJT transistor connected in series |
| Answer» C. MOS transistor connected in series | |
| 492. |
The number of full and half adders are required to add 16-bit number is __________ |
| A. | 8 half adders, 8 full adders |
| B. | 1 half adders, 15 full adders |
| C. | 16 half adders, 0 full adders |
| D. | 4 half adders, 12 full adders |
| Answer» C. 16 half adders, 0 full adders | |
| 493. |
Odd parity of word can be conveniently tested by ___________ |
| A. | OR gate |
| B. | AND gate |
| C. | NAND gate |
| D. | XOR gate |
| Answer» E. | |
| 494. |
The time required for a gate or inverter to change its state is called __________ |
| A. | Rise time |
| B. | Decay time |
| C. | Propagation time |
| D. | Charging time |
| Answer» D. Charging time | |
| 495. |
The output of an EX-NOR gate is 1. Which input combination is correct? |
| A. | A = 1, B = 0 |
| B. | A = 0, B = 1 |
| C. | A = 0, B = 0 |
| D. | A = 0, B’ = 1 |
| Answer» D. A = 0, B’ = 1 | |
| 496. |
Accurate prediction depends heavily on measuring the right variables. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 497. |
Which of the following analysis are incredibly hard to infer? |
| A. | Inferential |
| B. | Exploratory |
| C. | Causal |
| D. | Mechanistic |
| Answer» E. | |
| 498. |
Which of the following analysis is usually modeled by deterministic set of equations? |
| A. | Predictive |
| B. | Causal |
| C. | Mechanistic |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 499. |
Which of the following is more applicable to the below figure? |
| A. | Descriptive |
| B. | Causal |
| C. | Predictive |
| D. | None of the mentioned |
| Answer» B. Causal | |
| 500. |
Which of the following relationship are usually identified as average effects? |
| A. | Descriptive |
| B. | Causal |
| C. | Predictive |
| D. | None of the mentioned |
| Answer» C. Predictive | |