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.
| 51. |
In the following diagram, X [n] and y [n] are related by ______ |
| A. | Y [n] = 2*x [n] |
| B. | Y [n] = -2*x [n] |
| C. | Y [n] = x [2n] |
| D. | Y [n] = x [-2n] |
| Answer» B. Y [n] = -2*x [n] | |
| 52. |
780 V, 97 A, 1360 rpm separately excited dc motor with armature resistance (Ra) equal to 9 ohms. Calculate back emf developed in the motor when it operates on one-fourth of the full load. (Assume rotational losses are neglected) |
| A. | equal to 9 ohms. Calculate back emf developed in the motor when it operates on one-fourth of the full load. (Assume rotational losses are neglected)a) 564.75 V |
| B. | 561.75 V |
| C. | 562.45 V |
| D. | 564.75 Vb) 561.75 Vc) 562.45 Vd) 565.12 V |
| Answer» C. 562.45 V | |
| 53. |
Calculate the power developed by a motor using the given data: Eb= 48 V and I= 86 A (Assume rotational losses are neglected.) |
| A. | 4128 W |
| B. | 4150 W |
| C. | 4140 W |
| D. | 4170 W |
| Answer» B. 4150 W | |
| 54. |
Calculate the radius of the circular ring having a moment of inertia 59 kgm2 and mass of 69 kg. |
| A. | .924 m |
| B. | .928 m |
| C. | .934 m |
| D. | .944 m |
| Answer» B. .928 m | |
| 55. |
The slope of the V-I curve is 31°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line. |
| A. | 0.600 Ω |
| B. | 0.607 Ω |
| C. | 0.543 Ω |
| D. | 0.648 Ω |
| Answer» B. 0.607 Ω | |
| 56. |
Calculate the value of the frequency if the time period of the signal is 99 sec. |
| A. | 0.08 Hz |
| B. | 0.02 Hz |
| C. | 0.01 Hz |
| D. | 0.04 Hz |
| Answer» D. 0.04 Hz | |
| 57. |
340 V, 45 A, 1400 rpm DC separately excited motor having a resistance of .7 ohm excited by an external dc voltage source of 90 V. Calculate the torque developed by the motor on full load. |
| A. | 94.73 N-m |
| B. | 94.52 N-m |
| C. | 93.37 N-m |
| D. | 94.42 N-m |
| Answer» B. 94.52 N-m | |
| 58. |
Calculate the value of the angular acceleration of the motor using the given data: J = 81 kg-m2, load torque = 74 N-m, motor torque = 89 N-m. |
| A. | .195 rad/s2 |
| B. | .182 rad/s2 |
| C. | .183 rad/s2 |
| D. | .185 rad/s2 |
| Answer» E. | |
| 59. |
Calculate the moment of inertia of the hollow cylinder having a mass of 78 kg and radius of 49 cm. |
| A. | 9.363 kgm2 |
| B. | 9.265 kgm2 |
| C. | 9.787 kgm2 |
| D. | 9.568 kgm2 |
| Answer» B. 9.265 kgm2 | |
| 60. |
The unit of Magnetic flux density is Tesla. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 61. |
The generated e.m.f from 45-pole armature having 400 turns driven at 70 rev/sec having flux per pole as 90 mWb, with 17 parallel paths is ___________ |
| A. | 13341.17 V |
| B. | 12370.14 V |
| C. | 14700.89 V |
| D. | 15690.54 V |
| Answer» B. 12370.14 V | |
| 62. |
Turn-on and turn-off times of transistor depend on _________ |
| A. | Static Characteristic |
| B. | Junction Capacitance |
| C. | Current Gain |
| D. | Voltage Gain |
| Answer» C. Current Gain | |
| 63. |
Arduino Codes are referred to as ________ in the Arduino IDE. |
| A. | drawings |
| B. | notes |
| C. | sketches |
| D. | links |
| Answer» D. links | |
| 64. |
Is the Arduino code an Object-Oriented programming language or a Procedural programming language? |
| A. | The Arduino Code follows the Object-Oriented ideology |
| B. | The Arduino Code follows the Top-Down Procedural ideology |
| C. | The Arduino Code follows the Bottom-Up Procedural ideology |
| D. | The Arduino Code follows a custom Procedural Ideology |
| Answer» B. The Arduino Code follows the Top-Down Procedural ideology | |
| 65. |
Can external generic C/C++ libraries be imported to the Arduino IDE and used in the code? |
| A. | Yes, external C/C++ libraries can be used with the Arduino code |
| B. | No, no external libraies can be imported to the Arduino code |
| C. | Yes, but only libraries that are approved by the company can be used |
| D. | Yes, but the libraries must be written in Arduino Code only |
| Answer» B. No, no external libraies can be imported to the Arduino code | |
| 66. |
What is the difference between an IDE and a compiler? |
| A. | The IDE executes the code while the compiler gives a graphical environment for writing the code |
| B. | The compiler executes the code while the IDE gives a graphical environment for writing the code |
| C. | The compiler links the code to the respective files and the IDE takes it from there |
| D. | The compiler and the IDE are the same thing |
| Answer» C. The compiler links the code to the respective files and the IDE takes it from there | |
| 67. |
Does the Arduino code get processed by an interpreter or a compiler? |
| A. | The Arduino code is processed by an interpreter |
| B. | The Arduino code is first compiled to C++ and then processed using an interpreter |
| C. | The Arduino code is processed by a compiler |
| D. | The Arduino code is directly executed by the processor |
| Answer» D. The Arduino code is directly executed by the processor | |
| 68. |
Is it possible to write code for the Arduino in any other programming language? |
| A. | Yes, you can write |
| B. | No, it only allows the use of Arduino Code |
| C. | Yes, but you must write the code in C/C++ only |
| D. | Yes, but you must write the code in Python Only |
| Answer» B. No, it only allows the use of Arduino Code | |
| 69. |
Is the Arduino programming language a general-purpose language? |
| A. | Yes |
| B. | No |
| Answer» C. | |
| 70. |
What language is the Arduino IDE built on? |
| A. | C/C++ |
| B. | Python |
| C. | HTML |
| D. | Java |
| Answer» E. | |
| 71. |
Can you run an Arduino code in Raspberry Pi or any other microcontroller or embedded system? |
| A. | Yes |
| B. | No |
| Answer» C. | |
| 72. |
What language is a typical Arduino code based on? |
| A. | C/C++ |
| B. | Java |
| C. | Python |
| D. | Assembly Code |
| Answer» B. Java | |
| 73. |
XNOR is a logical operator in VHDL. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 74. |
What will be the values of following variables after REM operations? |
| A. | x= 2, y = 1 and z = -2 |
| B. | x = 2, y = -2 and z = 1 |
| C. | x = 2, y = -2 and z = 2 |
| D. | x = 2, y = 1 and z = 1View Answer |
| Answer» D. x = 2, y = 1 and z = 1View Answer | |
| 75. |
What will be the values of the following variables after MOD operations? |
| A. | x = 2, y = -2 and z = -2 |
| B. | x = 2, y = 1 and z = -2 |
| C. | x= 2, y = -2 and z = 2 |
| D. | x = 2, y = -2 and z = 1View Answer |
| Answer» C. x= 2, y = -2 and z = 2 | |
| 76. |
In the VHDL code given below, what will be the values of y and z? |
| A. | y = 0100 and z = 0000 |
| B. | y = 0000 and z = 0000 |
| C. | y = 0111 and z = 1110 |
| D. | y = 0110 and z = 0110View Answer |
| Answer» E. | |
| 77. |
Which of the following is equivalent division by 2 operator? |
| A. | SRL |
| B. | SLL |
| C. | SLA |
| D. | SRA |
| Answer» B. SLL | |
| 78. |
SLL operation is equivalent to which of the following operations? |
| A. | Multiplication by any natural number |
| B. | Multiplication by 2 |
| C. | Division by 2 |
| D. | Exponential operation |
| Answer» C. Division by 2 | |
| 79. |
In the following VHDL code, the values of y and z are _____ |
| A. | y = 0000 and z = 0000 |
| B. | y = 1001 and z = 0000 |
| C. | y = 1110 and z = 0111 |
| D. | y = 0111 and z = 1110View Answer |
| Answer» D. y = 0111 and z = 1110View Answer | |
| 80. |
Refer to the VHDL code given below, what should be the output of the identifier ‘y’ and ‘z’? |
| A. | y = 0100 and z = 0100 |
| B. | y = 0010 and z = 0100 |
| C. | y = 0100 and z = 1000 |
| D. | y = 0010 and z = 1000View Answer |
| Answer» E. | |
| 81. |
What is the “SLL” operator? |
| A. | Shift Logic Left |
| B. | Shift Logically |
| C. | Shift Left Logical |
| D. | Shift Left |
| Answer» D. Shift Left | |
| 82. |
SIGNAL x : STD_LOGIC; In this statement x is ______ |
| A. | Variable |
| B. | Identifier |
| C. | Name |
| D. | Literal |
| Answer» C. Name | |
| 83. |
What is the maximum takeoff weight of the A380? |
| A. | 600 tonnes |
| B. | 6000 tonnes |
| C. | 60 tonnes |
| D. | 60,000 tonnes |
| Answer» B. 6000 tonnes | |
| 84. |
The first A380 was revealed on __________ |
| A. | 18 December 2010 |
| B. | 18 December 2005 |
| C. | 18 January 2010 |
| D. | 18 January 2005 |
| Answer» E. | |
| 85. |
Airbus delivered the 100th A380 to __________ |
| A. | Air Canada |
| B. | Malaysia Airlines |
| C. | Vistara |
| D. | Emirates |
| Answer» C. Vistara | |
| 86. |
What is the maximum design speed of the A380? |
| A. | Mach 0.96 |
| B. | Mach 0.096 |
| C. | Mach 9.6 |
| D. | Mach 96 |
| Answer» B. Mach 0.096 | |
| 87. |
The Airbus A380 is certified for up to __________ passengers. |
| A. | 753 |
| B. | 653 |
| C. | 553 |
| D. | 853 |
| Answer» E. | |
| 88. |
The Airbus A380 offers a range of 6000nmi. |
| A. | True |
| B. | False |
| Answer» C. | |
| 89. |
Which of the following airlines introduced shower spas in first class on its A380s? |
| A. | Singapore Airlines |
| B. | Emirates |
| C. | Qatar Airways |
| D. | Lufthansa |
| Answer» C. Qatar Airways | |
| 90. |
What is the typical economy class layout in an A380? |
| A. | 3-2-3 |
| B. | 3-3-3 |
| C. | 3-4-3 |
| D. | 2-4-2 |
| Answer» D. 2-4-2 | |
| 91. |
Airbus uses liquid crystal displays in the cockpit of an A380. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 92. |
Airbus proposed an A380plus, at the June 2017 Paris Air Show. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 93. |
Which of the following is not an operator of the A380? |
| A. | Thai Airways |
| B. | Air India |
| C. | British Airways |
| D. | Malaysia Airlines |
| Answer» C. British Airways | |
| 94. |
Which of the following is the longest A380 route? |
| A. | Dubai-Muscat |
| B. | Singapore-New York |
| C. | Dubai-Auckland |
| D. | Delhi-Frankfurt |
| Answer» D. Delhi-Frankfurt | |
| 95. |
Which of the following aircraft has 2 flight decks? |
| A. | A380 |
| B. | A350 |
| C. | 777 |
| D. | 787 |
| Answer» B. A350 | |
| 96. |
Which of the following was the last airline to place an order for the A380? |
| A. | Air Canada |
| B. | Air Asia |
| C. | Emirates |
| D. | Etihad Airways |
| Answer» D. Etihad Airways | |
| 97. |
When was the A380 program launched? |
| A. | 19 January 2010 |
| B. | 19 December 2010 |
| C. | 19 January 2000 |
| D. | 19 December 2000 |
| Answer» E. | |
| 98. |
Polyacrylonitrile can be dissolved in its monomer so it can be shaped by bulk casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 99. |
Acrylonitrile is ____________ |
| A. | Vinyl chloride |
| B. | Methyl alcohol |
| C. | Methyl chloride |
| D. | Vinyl cyanide |
| Answer» E. | |
| 100. |
Terephthalic acid is converted into its dimethyl ester by treating it with ____________ |
| A. | Methyl chloride |
| B. | Hydroxylamine |
| C. | Methyl alcohol |
| D. | Ethylene glycol |
| Answer» D. Ethylene glycol | |