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.
| 2651. |
Who is known as the father of fibre optics? |
| A. | Nick brown |
| B. | Nick Holonyak |
| C. | Stefencolumbus |
| D. | Narinder Singh Kapany |
| Answer» E. | |
| 2652. |
Which electromagnetic rays is emitted GaAs LED’s ? |
| A. | Infrared |
| B. | Visible light |
| C. | Ultraviolet |
| D. | Radio |
| Answer» B. Visible light | |
| 2653. |
Optical isolator is also called as ________ |
| A. | Opaque isolator |
| B. | Optical coupling |
| C. | Optocoupler |
| D. | Optical resistor |
| Answer» D. Optical resistor | |
| 2654. |
Which is a type of Opto-isolator? |
| A. | CMCP793V-500 |
| B. | MOC3021 |
| C. | MPU 6050 |
| D. | L298N |
| Answer» C. MPU 6050 | |
| 2655. |
LASER stands for ____ |
| A. | Light amplification by systematic emission of radiation |
| B. | Light amplification by stimulated emission of radiation |
| C. | Light absorption by stimulated emission of radiation |
| D. | Low amplification by stimulating emitted radiation |
| Answer» C. Light absorption by stimulated emission of radiation | |
| 2656. |
Opto-isolator uses a source of light for transmission, most commonly “near infrared light emitting diodes”. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2657. |
Recombination of charge carriers in an LED, releases some energy which comes out in the form of light. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2658. |
Which alloy is used for red, orange and yellow LED’s? |
| A. | InGaN (Indium gallium nitride) |
| B. | GaAs (Gallium arsenide) |
| C. | (AlGaInP) Aluminum gallium indium phosphide |
| D. | TiO2(titanium dioxid |
| E. | GaAs (Gallium arsenide)c) (AlGaInP) Aluminum gallium indium phosphided) TiO2(titanium dioxide) |
| Answer» D. TiO2(titanium dioxid | |
| 2659. |
Which alloy is used for green blue and white LED’s? |
| A. | InGaN (Indium gallium nitride) |
| B. | GaAs (Gallium arsenide) |
| C. | (AlGaInP) Aluminum gallium indium phosphide |
| D. | TiO2(titanium dioxid |
| E. | GaAs (Gallium arsenide)c) (AlGaInP) Aluminum gallium indium phosphided) TiO2(titanium dioxide) |
| Answer» B. GaAs (Gallium arsenide) | |
| 2660. |
Who was/were awarded with noble prize in physics in the year 2014 for the invention of blue light emitting diodes? |
| A. | Hiroshi Amano |
| B. | Nick Holonyak |
| C. | Isamu Akasaki, Hiroshi Amano |
| D. | Isamu Akasaki, Hiroshi Amano and Shuji Nakamura |
| Answer» E. | |
| 2661. |
Who developed the first Light emitting diode? |
| A. | Nick brown |
| B. | Nick Holonyak |
| C. | Stefencolumbus |
| D. | Billy Stern |
| Answer» C. Stefencolumbus | |
| 2662. |
What is output of the given code? |
| A. | -3 -2 |
| B. | -3 -6 |
| C. | Syntax error |
| D. | None of the mentionedView Answer |
| Answer» B. -3 -6 | |
| 2663. |
Which of the following is valid conditional statement in Ruby? |
| A. | elseif |
| B. | elsif |
| C. | else if |
| D. | elseiff |
| Answer» C. else if | |
| 2664. |
Intermediate sequences in the intron are unimportant for splicing. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2665. |
SR proteins can interacts with__________________ |
| A. | U1 |
| B. | U2AF |
| C. | U1 and U2AF |
| D. | None |
| Answer» D. None | |
| 2666. |
The SR proteins bind to the __________________ |
| A. | Introns to be skipped |
| B. | Introns not to be skipped |
| C. | Exons to be skipped |
| D. | Exons not to be skipped |
| Answer» E. | |
| 2667. |
Proteins rich in _____________ and ______________ help in splicing. |
| A. | A and G |
| B. | R and S |
| C. | F and G |
| D. | S and R |
| Answer» E. | |
| 2668. |
5’______ and 3’ ____ is the sequence for two ends of an intron. |
| A. | GA TC |
| B. | GU AG |
| C. | AG TA |
| D. | GA AT |
| Answer» C. AG TA | |
| 2669. |
The 3’- OH end of the branch point A makes the attack in splicing of an intron. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2670. |
In the case of group 1 RNA, which one of the following can’t attack? |
| A. | GMP |
| B. | GDP |
| C. | GTP |
| D. | ATP |
| Answer» E. | |
| 2671. |
IN case of splicing the attacking group is _________________ |
| A. | ATP |
| B. | GTP |
| C. | A |
| D. | G |
| Answer» D. G | |
| 2672. |
The channel capacity is 100Mbps, the frame length is 10000 bits and the arrival rate is 5000 frames/sec. Calculate the mean time delay. |
| A. | 400 µsec |
| B. | 20 msec |
| C. | 2000 µsec |
| D. | 200 µsec |
| Answer» E. | |
| 2673. |
10010100101 is the code received. Find the error bit. |
| A. | 7 |
| B. | 5 |
| C. | 2 |
| D. | 3 |
| Answer» B. 5 | |
| 2674. |
What is the hamming code for the data: 1001101? |
| A. | 10011100101 |
| B. | 11010000101 |
| C. | 10001100101 |
| D. | 11111001011 |
| Answer» B. 11010000101 | |
| 2675. |
What is the hamming distance between these 2 codes: 10010010 and 11011001? |
| A. | 3 |
| B. | 4 |
| C. | 6 |
| D. | 2 |
| Answer» C. 6 | |
| 2676. |
Generate the CRC codeword for the message x3+1 using the generator polynomial x3+x+1. |
| A. | 1001101 |
| B. | 1001001 |
| C. | 1001110 |
| D. | 1001111 |
| Answer» D. 1001111 | |
| 2677. |
What are the bits transmitted for the AMI and Pseudoternary System? |
| A. | 101101 |
| B. | 101100 |
| C. | 010010 |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2678. |
What are the bits transmitted in the differential Manchester coding? |
| A. | 001101 |
| B. | 101100 |
| C. | 110010 |
| D. | 010011 |
| Answer» E. | |
| 2679. |
What are the bits transmitted for the return to zero system? |
| A. | 01001 |
| B. | 10110 |
| C. | 10010 |
| D. | 01101 |
| Answer» B. 10110 | |
| 2680. |
What are the bits transmitted for the NRZ-L system? |
| A. | 10001101 |
| B. | 01001110 |
| C. | 10110001 |
| D. | 10001101 |
| Answer» D. 10001101 | |
| 2681. |
High specific speed of turbine implies that it is ___________ |
| A. | Francis turbine |
| B. | Propeller turbine |
| C. | Pelton turbine |
| D. | Kaplan turbine |
| Answer» E. | |
| 2682. |
Medium specific speed of turbine implies _____________ |
| A. | Pelton turbine |
| B. | Kaplan turbine |
| C. | Francis turbine |
| D. | Propeller turbine |
| Answer» D. Propeller turbine | |
| 2683. |
Kaplan turbine is operated under __________ |
| A. | Low head and high discharge |
| B. | High head and low discharge |
| C. | Medium head and high discharge |
| D. | Medium head and medium discharge |
| Answer» B. High head and low discharge | |
| 2684. |
Pelton turbine is operated under_________ |
| A. | Low head and high discharge |
| B. | High head and low discharge |
| C. | Medium head and high discharge |
| D. | Medium head and medium discharge |
| Answer» C. Medium head and high discharge | |
| 2685. |
If water flows in radial direction at inlet of runner and leaves axially at outlet then turbine is named as ____________ |
| A. | Tangential flow turbine |
| B. | Axial flow turbine |
| C. | Radial flow turbine |
| D. | Mixed flow turbine |
| Answer» E. | |
| 2686. |
If energy available at inlet of turbine is only kinetic energy then it is classified based on ____________ |
| A. | Type of energy at inlet |
| B. | Direction of flow through runner |
| C. | Head at inlet of turbine |
| D. | Specific speed of turbine |
| Answer» B. Direction of flow through runner | |
| 2687. |
Low specific speed, high specific speed and medium specific speed are classified based on ____________ |
| A. | Type of energy at inlet |
| B. | Direction of flow through runner |
| C. | Head at inlet of turbine |
| D. | Specific speed of turbine |
| Answer» E. | |
| 2688. |
High head, low head and medium head turbines are classified based on ____________ |
| A. | Type of energy at inlet |
| B. | Direction of flow through runner |
| C. | Head at inlet of turbine |
| D. | Specific speed of turbine |
| Answer» D. Specific speed of turbine | |
| 2689. |
Impulse turbine and reaction turbine are classified based on? |
| A. | Type of energy at inlet |
| B. | Direction of flow through runner |
| C. | Head at inlet of turbine |
| D. | Specific speed of turbine |
| Answer» B. Direction of flow through runner | |
| 2690. |
Hydraulic turbines are classified based on ____________ |
| A. | Energy available at inlet of turbine |
| B. | Direction of flow through vanes |
| C. | Head at inlet of turbine |
| D. | Energy available, Direction of flow, Head at inlet. |
| Answer» E. | |
| 2691. |
The ignition timing is affected by _____________ |
| A. | compression ratio |
| B. | engine speed |
| C. | mixture strength |
| D. | all of the mentioned |
| Answer» E. | |
| 2692. |
For maximum power and economy a slow burning fuel needs a higher spark advance than fast burning fuel. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2693. |
If the engine is operating with richer mixtures the optimum spark timing must be _____________ |
| A. | constant |
| B. | increased |
| C. | retarded |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2694. |
The Southern Blotting methodology is extremely _____________ |
| A. | Expensive |
| B. | Difficult |
| C. | Easy |
| D. | Sensitive |
| Answer» E. | |
| 2695. |
Which of the following will reveal any of the imperfectly hybridized DNA samples? |
| A. | Membrane separation |
| B. | Autoradiography |
| C. | UV radiation |
| D. | Infrared radiation |
| Answer» C. UV radiation | |
| 2696. |
Lower ionic strength is an example of increased stringency in southern blotting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2697. |
The labeled nucleic acid _________ with DNA sample to be analyzed. |
| A. | Interferes |
| B. | Solidifies |
| C. | Crystallizes |
| D. | Hybridizes |
| Answer» E. | |
| 2698. |
Which nylon membranes should be used in southern blotting to reduce the need for gel pretreatment? |
| A. | Positive |
| B. | Negative |
| C. | Neutral |
| D. | Heavy |
| Answer» B. Negative | |
| 2699. |
Which among the following is not a location based service? |
| A. | Package tracking |
| B. | Road side assistance |
| C. | Patient tracking |
| D. | Handover |
| Answer» E. | |
| 2700. |
Geopriv is a working group under the ____ |
| A. | International Engineering Task Force |
| B. | International Education Task Force |
| C. | Internet Engineering Task Force |
| D. | Internet Education Task Force |
| Answer» D. Internet Education Task Force | |