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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.
| 851. |
The sizes of source and destination port address in TCP header are ___________ respectively. |
| A. | 16-bits and 32-bits |
| B. | 16-bits and 16-bits |
| C. | 32-bits and 16-bits |
| D. | 32-bits and 32-bits |
| Answer» C. 32-bits and 16-bits | |
| 852. |
A malicious attacker sends a large number of SYNC segments to a server, pretending that each of them is coming from a different client by faking the source IP address in the datagram. Which type of attack is being performed in this situation? |
| A. | SYNC flooding attack |
| B. | Active attack |
| C. | Passive attack |
| D. | Denial-of-service attack |
| Answer» B. Active attack | |
| 853. |
In Three-Way Handshaking process, the situation where both the TCP’s issue an active open is ___________ |
| A. | Mutual open |
| B. | Mutual Close |
| C. | Simultaneous open |
| D. | Simultaneous close |
| Answer» D. Simultaneous close | |
| 854. |
A client that wishes to connect to an open server tells its TCP that it needs to be connected to that particular server. The process is called ___________ |
| A. | Active open |
| B. | Active close |
| C. | Passive close |
| D. | Passive open |
| Answer» B. Active close | |
| 855. |
The receiver of the data controls the amount of data that are to be sent by the sender is referred to as ___________ |
| A. | Flow control |
| B. | Error control |
| C. | Congestion control |
| D. | Error detection |
| Answer» B. Error control | |
| 856. |
Arrange the steps in order to represent the conducting of Wideband Delphi Technique. i. Conduct a group discussion ii. Conduct another group discussion iii. Present experts with a problem iv. Collect expert opinion anonymously v. Iterate until consensus is reached vi. Feedback a summary of result to each expert |
| A. | i, iii, ii, iv, v, vi |
| B. | iii, i, ii, iv, v, vi |
| C. | i, ii, iii, iv, vi, v |
| D. | iii, i, iv, vi, ii, v |
| Answer» E. | |
| 857. |
Who controls the FAST (Facilitated Application Specification Techniques) meeting ? |
| A. | System Analyst |
| B. | Scribe |
| C. | Facilitator |
| D. | Manager |
| Answer» D. Manager | |
| 858. |
How is brainstorming different from JAD ? Brainstorming sessions |
| A. | last for about 2-3 hours |
| B. | last for about 2-3 days |
| C. | cover the technology used for the development |
| D. | all of the mentioned |
| Answer» B. last for about 2-3 days | |
| 859. |
The second derivative input signals modify which of the following? |
| A. | The time constant of the system |
| B. | Damping of the system |
| C. | The gain of the system |
| D. | The time constant and suppress the oscillations |
| Answer» E. | |
| 860. |
On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend? |
| A. | Frequency |
| B. | Loop gain |
| C. | Forward gain |
| D. | All of the mentioned |
| Answer» E. | |
| 861. |
Transfer function of a system is used to calculate which of the following? |
| A. | The order of the system |
| B. | The time constant |
| C. | The output for any given input |
| D. | The steady state gain |
| Answer» D. The steady state gain | |
| 862. |
Regenerative feedback implies feedback with |
| A. | Oscillations |
| B. | Step input |
| C. | Negative sign |
| D. | Positive sign |
| Answer» E. | |
| 863. |
What is the weight percentage of H2O? |
| A. | 26.47 |
| B. | 36.47 |
| C. | 47.47 |
| D. | 58.47 |
| Answer» B. 36.47 | |
| 864. |
What is the weight percentage of C2H4? |
| A. | 41.17 |
| B. | 51.17 |
| C. | 61.17 |
| D. | 71.17 |
| Answer» B. 51.17 | |
| 865. |
What is mole percentage of C3H8? |
| A. | 0.2 |
| B. | 0.4 |
| C. | 0.6 |
| D. | 0.8 |
| Answer» B. 0.4 | |
| 866. |
What is mole percentage of H2O? |
| A. | 0.2 |
| B. | 0.4 |
| C. | 0.6 |
| D. | 0.8 |
| Answer» C. 0.6 | |
| 867. |
What is mole percentage of C2H4? |
| A. | 0.2 |
| B. | 0.4 |
| C. | 0.6 |
| D. | 0.8 |
| Answer» C. 0.6 | |
| 868. |
How many moles of C3H8 are there in the bucket? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 6 |
| Answer» B. 2 | |
| 869. |
How many moles of H2O are there in the bucket? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 6 |
| Answer» C. 4 | |
| 870. |
A bucket contains 56 gms of C2H4, 36 gms of H2O and 44 gms of C3H8. (Molecular weights of the components are 28, 18 and 44 gms respectively)1. How many moles of C2H4 are there in the bucket? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 6View Answer |
| Answer» C. 4 | |
| 871. |
The following syntax is also used for unless conditional statement. |
| A. | True |
| B. | FalseView Answer |
| Answer» B. FalseView Answer | |
| 872. |
Syntax for unless conditional statement is |
| A. | True |
| B. | FalseView Answer |
| Answer» B. FalseView Answer | |
| 873. |
Is the signal x(n) = u(n + 4) – u(n – 4) causal? |
| A. | YES |
| B. | NO |
| Answer» C. | |
| 874. |
Is the following signal an energy signal? x(t) = u(t) – u(t – 1) |
| A. | YES |
| B. | NO |
| Answer» B. NO | |
| 875. |
For an energy signal __________ |
| A. | E=0 |
| B. | P= ∞ |
| C. | E= ∞ |
| D. | P=0 |
| Answer» E. | |
| 876. |
Determine the Time period of: x(t)=3 cos(20t+5)+sin(8t-3). |
| A. | 1/10 sec |
| B. | 1/20 sec |
| C. | 2/5 secd 2/4 sec |
| Answer» D. | |
| 877. |
A signal is a physical quantity which does not vary with ____________ |
| A. | Time |
| B. | Space |
| C. | Independent Variables |
| D. | Dependent Variables |
| Answer» E. | |
| 878. |
Which of these operators does not perform relative-value comparisons? |
| A. | = |
| B. | == |
| C. | <= |
| D. | >= |
| Answer» C. <= | |
| 879. |
Which subquery cannot be executed by itself as a separate statement? |
| A. | Correlated |
| B. | Uncorrelated |
| C. | EXISTS |
| D. | NOT EXISTS |
| Answer» B. Uncorrelated | |
| 880. |
An uncorrelated subquery does not contain any reference to the values from the outer query. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 881. |
The facility that allows nesting one select statement into another is called __________ |
| A. | nesting |
| B. | binding |
| C. | subquerying |
| D. | encapsulating |
| Answer» D. encapsulating | |
| 882. |
To increase the input resistance in differential amplifier, replace the transistor by |
| A. | Current mirror |
| B. | Current repeater |
| C. | Darlington pair |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 883. |
What will be the overall gain in Darlington circuit, if the individual transistor gain is 200? |
| A. | 10000 |
| B. | 40000 |
| C. | 8000 |
| D. | 1000 |
| Answer» C. 8000 | |
| 884. |
Which current source exhibits a very high output resistance? |
| A. | Simple current mirror |
| B. | Wilson current mirror |
| C. | Widlar current mirror |
| D. | All of the mentioned |
| Answer» C. Widlar current mirror | |
| 885. |
The requirements for a good current source is the one in which, (Take Output current – IO and Output resistance – rO ) |
| A. | IO independent upon current gain and should be low |
| B. | rO should be very high |
| C. | IO in the circuit should be low |
| D. | IO independent upon current gain and rO should be very high |
| Answer» E. | |
| 886. |
For the current repeater shown in the circuit, determine IC4 value, Where β = 75. |
| A. | 0.035mA |
| B. | 0.028mA |
| C. | 0.04mA |
| D. | 0.052mA |
| Answer» B. 0.028mA | |
| 887. |
If the reference and collector current are 0.539mA and 0.49mA respectively, how many transistors are used in current repeater circuit? (Assume β =150) |
| A. | 11 |
| B. | 14 |
| C. | 10 |
| D. | 8 |
| Answer» C. 10 | |
| 888. |
A current repeater having identical transistor has collector current, IC1 =0.39mA. Find IC2,IC4& IC6 |
| A. | 0.39mA, 0.39mA, 0.78mA |
| B. | 0.78mA, 0.39mA, 0.39mA |
| C. | 0.39mA, 0.78mA, 0.39mA |
| D. | None of the mentioned |
| Answer» E. | |
| 889. |
What will be the value of emitter resistance in widlar current source for output current 10mA, having Iref=2.7A |
| A. | 67/(1+1/β)Ω |
| B. | 13/(1+1/β)Ω |
| C. | 14/(1+1/β)Ω |
| D. | 1.36/(1+1/β)Ω |
| Answer» D. 1.36/(1+1/β)Ω | |
| 890. |
Determine the early voltage, if the output resistance is 2.5×2kΩ and input current is 2mA |
| A. | 9.8v |
| B. | 5.6v |
| C. | 7.8v |
| D. | 10v |
| Answer» E. | |
| 891. |
Which of the following has range extension capability? |
| A. | Sectoring |
| B. | Repeaters |
| C. | Scattering |
| D. | Micro cell zone concept |
| Answer» C. Scattering | |
| 892. |
Sectoring increases SIR (Signal to Interference Ratio). |
| A. | True |
| B. | False |
| Answer» B. False | |
| 893. |
Which of the following technique is used to limit radio coverage of newly formed microcells? |
| A. | Sectoring |
| B. | Splitting |
| C. | Antenna downtilting |
| D. | Scattering |
| Answer» D. Scattering | |
| 894. |
Cell splitting do not maintain the minimum c-channel reuse ratio. |
| A. | True |
| B. | False |
| Answer» C. | |
| 895. |
The _______ connects the small intestine and liver. |
| A. | pulmonary vein |
| B. | renal vein |
| C. | hepatic portal |
| D. | cardiac vein |
| Answer» D. cardiac vein | |
| 896. |
pH in the small intestine is __________ |
| A. | 2 |
| B. | 5 |
| C. | 7 |
| D. | 8 |
| Answer» E. | |
| 897. |
Fats effectively begin digesting due to __________ |
| A. | Salivary emulsification |
| B. | Esophageal emulsification |
| C. | Acidic emulsification |
| D. | Bile emulsification |
| Answer» E. | |
| 898. |
The cells of the small intestine have a special structure that helps in the absorption of food. This structure is ________ |
| A. | villi |
| B. | pseudopodia |
| C. | flagella |
| D. | attachment sites |
| Answer» B. pseudopodia | |
| 899. |
The Cedar, BBN Butterfly, Cosmic Cube and Hypercube machine can be characterized as _____________ |
| A. | SISD |
| B. | MIMD |
| C. | SIMD |
| D. | MISD |
| Answer» C. SIMD | |
| 900. |
People overcome natural language problems by _____________ |
| A. | grouping attributes into frames |
| B. | understanding ideas in context |
| C. | identifying with familiar situations |
| D. | both understanding ideas in context & identifying with familiar situations |
| Answer» E. | |