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.
| 651. |
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 | |
| 652. |
The loads supported by an automobile frame are _____ |
| A. | Weight of the body, passengers and cargo loads |
| B. | Torque from engine and transmission |
| C. | Sudden impacts from collisions |
| D. | All of the mentioned |
| Answer» E. | |
| 653. |
Which of the following is not a part of the transmission system? |
| A. | Clutch |
| B. | Axles |
| C. | Wheels |
| D. | Gear box |
| Answer» D. Gear box | |
| 654. |
The transmission system transmits _________ from engine to wheels. |
| A. | Speed |
| B. | Power |
| C. | Current |
| D. | Pressure |
| Answer» C. Current | |
| 655. |
If the rotation speed of the disc is increased to 2 times and the mass is reduced to half, overall the Couple acting on bearings will increase. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 656. |
From the following data calculate the gyroscopic couple on the bearing in N-m.Mass of disc = 30 Kg, diameter = 60 cmRotation speed = 1200 rpmAngle between disc and a plane 90 degree to the axis of shaft = 1° |
| A. | 180 |
| B. | 186 |
| C. | 190 |
| D. | 196 |
| Answer» C. 190 | |
| 657. |
If the length and radius of the disc is same them moment of inertia is more about which axis? |
| A. | Polar |
| B. | Diametral |
| C. | Shaft |
| D. | Center |
| Answer» B. Diametral | |
| 658. |
If the length of the disc is negligible, then what will be the moment of inertia about the diametral axis? |
| A. | mr2/4 |
| B. | mr2 |
| C. | mr2/2 |
| D. | 2mr2 |
| Answer» B. mr2 | |
| 659. |
In the figure given below, the moment of inertia about diametral axis is _______ |
| A. | m(l2/12 + r2/4) |
| B. | m(l2/6 + r2/4) |
| C. | m(l2/12 + r2/2) |
| D. | m(l2/12 + r2) |
| Answer» B. m(l2/6 + r2/4) | |
| 660. |
When seen from the top, the gyroscopic couple acting on the disc will act in the clockwise direction. |
| A. | True |
| B. | False |
| Answer» C. | |
| 661. |
In the figure given below, the moment of inertia about polar axis OP is _______ |
| A. | mr2/2 |
| B. | mr2 |
| C. | 2mr2 |
| D. | 4mr2 |
| Answer» B. mr2 | |
| 662. |
Characteristic of organic solid waste is __________ |
| A. | Derived oil |
| B. | Tars |
| C. | Inorganic aqueous |
| D. | Organic liquid |
| Answer» C. Inorganic aqueous | |
| 663. |
Sludge from painting operations is an example for __________ waste category. |
| A. | Organic aqueous |
| B. | Inorganic aqueous |
| C. | Organic liquid |
| D. | Organic sludge |
| Answer» E. | |
| 664. |
Dust from steel manufacturing is example for __________ waste category. |
| A. | Organic aqueous |
| B. | Inorganic aqueous |
| C. | Organic liquid |
| D. | Inorganic sludge |
| Answer» E. | |
| 665. |
Characteristic of organic liquid waste is ________ |
| A. | Derived oil |
| B. | Organic aqueous |
| C. | Inorganic aqueous |
| D. | Organic liquid |
| Answer» B. Organic aqueous | |
| 666. |
Spent halogenated waste is example for _________ waste category. |
| A. | Organic aqueous |
| B. | Inorganic aqueous |
| C. | Organic liquid |
| D. | Organic sludge |
| Answer» D. Organic sludge | |
| 667. |
Waste from pesticide is an example for _________ waste category. |
| A. | Organic aqueous |
| B. | Inorganic aqueous |
| C. | Organic liquid |
| D. | Organic sludge |
| Answer» B. Inorganic aqueous | |
| 668. |
Spent caustic from metal finishing is an example for __________ waste category. |
| A. | Organic aqueous |
| B. | Inorganic aqueous |
| C. | Organic liquid |
| D. | Organic sludge |
| Answer» C. Organic liquid | |
| 669. |
Form distribution in engineering system classification of hazardous waste is based on _________ |
| A. | Solvents |
| B. | Heavy metals |
| C. | Phase |
| D. | Treat ability |
| Answer» D. Treat ability | |
| 670. |
Engineering system classification of hazardous waste can be based on chemical classification. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 671. |
What are the bits transmitted for the Unipolar system? |
| A. | 01101 |
| B. | 11010 |
| C. | 10110 |
| D. | 01001 |
| Answer» D. 01001 | |
| 672. |
A channel has a 1-MHz bandwidth. The SNR for this channel is 63. What is the appropriate signel level? |
| A. | 2 |
| B. | 8 |
| C. | 4 |
| D. | 16 |
| Answer» D. 16 | |
| 673. |
A channel has a 1-MHz bandwidth. The SNR for this channel is 63. What is the appropriate bit rate? |
| A. | 4 Mbps |
| B. | 6 Mbps |
| C. | 8 Mbps |
| D. | 12 Mbps |
| Answer» C. 8 Mbps | |
| 674. |
Calculate the theoretical channel capacity. If SNR(dB) = 36 and the channel bandwidth is 2 MHz. |
| A. | 12 Mbps |
| B. | 24 Mbps |
| C. | 16 Mbps |
| D. | 32 Mbps |
| Answer» C. 16 Mbps | |
| 675. |
Calculate the theoretical highest bit rate of a regular telephone line. The signal-to-noise ratio is usually 3162. |
| A. | 34.860 kbps |
| B. | 17.40 kbps |
| C. | 11.62 kbps |
| D. | none of the Mentioned |
| Answer» B. 17.40 kbps | |
| 676. |
If a periodic signal is decomposed into five sine waves with frequencies of 100, 300, 500, 700, and 900 Hz, what is its bandwidth? |
| A. | 2500 Hz |
| B. | 900 Hz |
| C. | 800 Hz |
| D. | can’t be determined with the information given |
| Answer» D. can’t be determined with the information given | |
| 677. |
Which of the following are true? |
| A. | Cold working reduces toughness and ductility |
| B. | Cold worked components have poor resistance to shocks and vibrations |
| C. | Tooling for cold working is cheaper as compared to hot working |
| D. | All of the mentioned |
| Answer» E. | |
| 678. |
Cold rolled components have higher strengths and hardness than hot rolled components. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 679. |
Clutch and coupling can be considered to be same. |
| A. | True |
| B. | False |
| Answer» C. | |
| 680. |
If friction angle is 30’ then the maximum efficiency of the screw is |
| A. | 33% |
| B. | 66% |
| C. | 50% |
| D. | Noe of the mentioned |
| Answer» B. 66% | |
| 681. |
Efficiency of screw depends upon lead of the screw. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 682. |
What is the variation of cp, cv and k in case of gases when the temperature increases? |
| A. | cp and cv decreases with temperature, and k increases |
| B. | cp and cv increase with temperature, and k decreases |
| C. | cp and cv increase with temperature, and k increases |
| D. | cp and cv decreases with temperature, and k decreases |
| Answer» C. cp and cv increase with temperature, and k increases | |
| 683. |
Determine the compressibility of an incompressible fluid, if the pressure of the fluid is changed from 70 N/m2 to 130 N/m2. The volume of the liquid changes by 0.15 percent. |
| A. | 0.0025 m2/N |
| B. | 0.0050 m2/N |
| C. | 0.0070 m2/N |
| D. | 0.0012 m2/N |
| Answer» B. 0.0050 m2/N | |
| 684. |
A cylinder of 0.8 m3 in volume contains superheated steam at 70℃ and .4 N/m2 absolute pressure. The superheated steam is compressed to .3 . Find pressure and temperature. |
| A. | 0.74 N/m2, 422.3℃ |
| B. | 1.48 N/m2, 422.3℃ |
| C. | 0.74 N/m2, 844.6℃ |
| D. | 1.48 N/m2, 844.6℃ |
| Answer» B. 1.48 N/m2, 422.3℃ | |
| 685. |
A gas weighs 16 N/m3 at 30℃ and at an absolute pressure of 0.35 N/mm2. Determine the gas constant. |
| A. | 708.23 |
| B. | 354.11 |
| C. | 531.17 |
| D. | 1062.34 |
| Answer» B. 354.11 | |
| 686. |
Calculate the pressure exerted by 9 kg of air at a temperature of 20℃ if the volume is 0.8m3. Assuming ideal gas laws are applicable. |
| A. | 946 kN/m2 |
| B. | 1892 kN/m2 |
| C. | 1419 kN/m2 |
| D. | None of the mentioned |
| Answer» B. 1892 kN/m2 | |
| 687. |
The value of gas constant is same for all the gases |
| A. | True |
| B. | False |
| Answer» C. | |
| 688. |
If the fluid is incompressible, do thermodynamic properties play an important role in its behaviour at varying temperature and pressure? |
| A. | Yes |
| B. | No |
| C. | Depends on the fluid |
| D. | None of the mentioned |
| Answer» C. Depends on the fluid | |
| 689. |
If there is no exchange of heat between system and surrounding where system comprises of a compressible fluid but the heat is generated due to friction, the process is an adiabatic. |
| A. | True |
| B. | False |
| Answer» C. | |
| 690. |
If the energy required to break all non-covalent interactions between two molecules is 750 kJ/mol, then what is the total number of hydrogen bonds present between them? (Assume there are only hydrogen bonds between them and the bond energy of each hydrogen bond is 15 kJ/mol) |
| A. | 11,250 |
| B. | 25 |
| C. | 100 |
| D. | 50 |
| Answer» E. | |
| 691. |
Which among the following has the strongest interaction? |
| A. | Vander Waals interactions |
| B. | Ionic bonds |
| C. | Hydrogen bond |
| D. | Covalent bond |
| Answer» E. | |
| 692. |
Molecular complementarity leads to a lock-and-key fit between biomolecules. It is due to which type of interactions? |
| A. | Covalent bond |
| B. | Hydrophobic interactions only |
| C. | Ionic bonds only |
| D. | Non-covalent interactions |
| Answer» E. | |
| 693. |
Which of the following interactions determine the water solubility of uncharged molecules? |
| A. | Covalent bond |
| B. | Hydrophobic interactions |
| C. | Vander Waals interactions |
| D. | Hydrogen bond |
| Answer» E. | |
| 694. |
Which of the following has bonds in increasing order of their strength? |
| A. | Ionic bond > Covalent bond > Hydrogen bond > Hydrophobic interactions > Vander Waals interactions |
| B. | Covalent bond > Ionic bond > Hydrogen bond > Hydrophobic interactions > Vander Waals interactions |
| C. | Covalent bond > Hydrogen bond > Ionic bond > Hydrophobic interactions > Vander Waals interactions |
| D. | Covalent bond > Ionic bond > Hydrogen bond > Hydrophobic interactions > Vander Waals interactions |
| Answer» E. | |
| 695. |
The weak attractive forces of non-covalent interactions are not at all important for determining the properties and functions of biomolecules. |
| A. | True |
| B. | False |
| Answer» C. | |
| 696. |
Which of the following interactions involves charged groups? |
| A. | Hydrophobic interactions |
| B. | Disulfide bond |
| C. | Hydrogen bond |
| D. | Ionic bond |
| Answer» E. | |
| 697. |
Vander Waals force arises from the attraction between transient dipoles generated by the rapid movement of electrons around the neutral atom. |
| A. | False |
| B. | True |
| Answer» C. | |
| 698. |
Which among the following interactions is the weakest? |
| A. | Disulfide bond |
| B. | Peptide bond |
| C. | Ionic bond |
| D. | Hydrogen bond |
| Answer» E. | |
| 699. |
Covalent interactions are generally weaker than non-covalent interactions. |
| A. | True |
| B. | False |
| Answer» C. | |
| 700. |
Which of the following options contain only covalent interactions? |
| A. | Disulfide bond, Ionic bond |
| B. | Hydrogen bond, peptide bond |
| C. | Hydrogen bond, Ionic bond |
| D. | Disulfide bond, peptide bond |
| Answer» E. | |