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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.
| 3901. |
A single-phase HW rectifier with a FD is supplied by Vs = 240 V, 50 Hz, AC with a load R = 10 Ω, L = 0.5 mH and a firing angle α = 30°. Find the average value of the load current.$ |
| A. | 10 A |
| B. | 0.063 A |
| C. | 6.3 A |
| D. | 0.1 A |
| Answer» C. 6.3 A | |
| 3902. |
The intervals for levelling work in rolling terrain are taken as |
| A. | 50m |
| B. | 30 m |
| C. | 45 m |
| D. | 40 m |
| Answer» B. 30 m | |
| 3903. |
What is the total ampere conductors/pole (in SI) if 600 lap wound conductors carry 120A current through conductors (P=4)? |
| A. | 18000 |
| B. | 9000 |
| C. | 4500 |
| D. | 13500 |
| Answer» B. 9000 | |
| 3904. |
Lower calorific value can be determined by equation: |
| A. | LCV = HCV – m*2466 |
| B. | LCV = HCV + (m/2466) |
| C. | LCV = HCV – (m/2466) |
| D. | LCV = HCV + (m*2466) |
| Answer» B. LCV = HCV + (m/2466) | |
| 3905. |
Find the number of HSFG bolts of diameter 20mm, grade 88 for connection of member carrying factored tensile load of 200kN when no slip is permitted. |
| A. | 5 |
| B. | 4 |
| C. | 3 |
| D. | 2 |
| Answer» C. 3 | |
| 3906. |
Using 3 sigma quality performances, we get 2700 products produced which are nonconforming. If we operate on the 3- σ performance, and we produce 100 independent product components, what is the probability of finding product not defective?$ |
| A. | 0.7891 |
| B. | 0.27 |
| C. | 0.7631 |
| D. | 0.007631 |
| Answer» D. 0.007631 | |
| 3907. |
When there is mass transfer across the system boundary, the system is called |
| A. | isolated system |
| B. | closed system |
| C. | open system |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3908. |
What is the range of current density for small and medium power transformers? |
| A. | 1-2 A per mm<sup>2</sup> |
| B. | 1-2.5 A per mm<sup>2</sup> |
| C. | 1.1-2.2 A per mm<sup>2</sup> |
| D. | 1.1-2.3 A per mm<sup>2</sup> |
| Answer» E. | |
| 3909. |
Which of the following are the registers that are used for controlling the ADC conversion in the AVR? |
| A. | ADCSRA |
| B. | ADMUX |
| C. | SPIOR |
| D. | All of the mentioned |
| Answer» E. | |
| 3910. |
Filter photometer detector is primarily responsive to which of the following compounds/elements? |
| A. | Volatile sulphur or phosphorous compounds |
| B. | Nitrogen |
| C. | Halogen |
| D. | Potassium |
| Answer» B. Nitrogen | |
| 3911. |
____________ is a special type of stored procedure that is automatically invoked whenever the data in the table is modified. |
| A. | Procedure |
| B. | Trigger |
| C. | Curser |
| D. | None of the Mentioned |
| Answer» C. Curser | |
| 3912. |
The rate of creep generally ____________ with the ____________ of the size of aggregates. |
| A. | Increase, increase |
| B. | Decrease, decease |
| C. | Increase, decrease |
| D. | 2.5, 12mm |
| Answer» D. 2.5, 12mm | |
| 3913. |
If A and B are any two sets, then A ‚à™ (A ‚à© B) is equal to$ |
| A. | A |
| B. | B |
| C. | A^C |
| D. | B^C |
| Answer» B. B | |
| 3914. |
To add attributes to the model. |
| A. | Map |
| B. | ModelMap |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3915. |
When the secondary winding of a C.T. is opened |
| A. | C.T. is magnetised |
| B. | C.T. is demagnetised |
| C. | C.T. is shorted |
| D. | C.T. is opened |
| Answer» C. C.T. is shorted | |
| 3916. |
What is the pH value at which boiler is alkalized? |
| A. | 9.0 |
| B. | 5.4 |
| C. | 6.9 |
| D. | 5.7 |
| Answer» B. 5.4 | |
| 3917. |
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 | |
| 3918. |
In general, concrete shells have thin cross sections, which prectude the use of large diameter: |
| A. | Cables |
| B. | Wires |
| C. | Bars |
| D. | Lens |
| Answer» B. Wires | |
| 3919. |
In Overlap add method, what is the length of the input data block? |
| A. | L-1 |
| B. | L |
| C. | L+1 |
| D. | None of the mentioned |
| Answer» C. L+1 | |
| 3920. |
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 | |
| 3921. |
What is the interval for updating data in the navigation database? |
| A. | 1 hour |
| B. | 1 month |
| C. | 24 hours |
| D. | 28 days |
| Answer» E. | |
| 3922. |
What is the Fermi energy of a n-type semiconductor? |
| A. | E |
| B. | E<sub>(F )</sub>= (E<sub>c</sub>+ E<sub>v</sub>)/2 |
| C. | E<sub>F</sub> = (E<sub>c</sub>+ E<sub>d</sub>)/2 |
| D. | E<sub>F</sub> = (E<sub>v</sub>+ E<sub>a</sub>)/2 |
| Answer» D. E<sub>F</sub> = (E<sub>v</sub>+ E<sub>a</sub>)/2 | |
| 3923. |
The 7th derivative of f(x) = (x3 + x2 + x + 1) sinh(x) at x = 0 is given by |
| A. | 43 |
| B. | 7 |
| C. | 0 |
| D. | 34 |
| Answer» B. 7 | |
| 3924. |
A balloon behaves according to the equation P = (C2)V^(1/3), C2 = 100 kPa/m. The balloon is blown up with air from a volume of 1 m^3 to a volume of 3 m^3. Find the work done by the air assuming it is at 25°C.$ |
| A. | 219.5 kJ |
| B. | 229.5 kJ |
| C. | 239.5 kJ |
| D. | 249.5 kJ |
| Answer» E. | |
| 3925. |
Which of them is not correct? |
| A. | j x j = 0 |
| B. | j x k = i |
| C. | j x i = k |
| D. | j x i = -k |
| Answer» D. j x i = -k | |
| 3926. |
Which ceramic material does Si3Al3O3N5 denote? |
| A. | Silicon carbide |
| B. | Silicon nitride |
| C. | Sialon |
| D. | Silicon alumino nitrate |
| Answer» D. Silicon alumino nitrate | |
| 3927. |
Which object serves as the global object at the top of the scope chain? |
| A. | Hash |
| B. | Property |
| C. | Element |
| D. | Window |
| Answer» E. | |
| 3928. |
__________ is refractory sand that can be molded to intricate shape. |
| A. | Quartz |
| B. | Olivine |
| C. | Bentonite |
| D. | Clays |
| Answer» C. Bentonite | |
| 3929. |
Degree of accuracy for steel tape, Plumb bob is _______ |
| A. | 1 in 100 |
| B. | 1 in 1000 |
| C. | 1 in 10,000 |
| D. | 1 in 10 |
| Answer» C. 1 in 10,000 | |
| 3930. |
In the given equation, state what αr suggests;$ |
| A. | Radius of curvature |
| B. | Refractive index difference |
| C. | Radiation attenuation coefficients |
| D. | Constant of proportionality |
| Answer» D. Constant of proportionality | |
| 3931. |
The method which it indicates the distances by linear dimensions measured parallel or perpendicular to reference axes or two perpendicular datum is called _________ |
| A. | parallel dimension |
| B. | chain dimensioning |
| C. | rectangular coordinates dimensioning |
| D. | tabular dimensioning |
| Answer» D. tabular dimensioning | |
| 3932. |
Find the inverse of (x7+x+1) modulo (x8 + x4 + x3+ x + 1). |
| A. | x<sup>7</sup>+x |
| B. | x<sup>6</sup>+x<sup>3</sup> |
| C. | x<sup>7</sup> |
| D. | x<sup>5</sup>+1 |
| Answer» D. x<sup>5</sup>+1 | |
| 3933. |
In the expression for phase of the reflection coefficient, Lmin stands for : |
| A. | distance between load and first voltage minimum |
| B. | distance between load and first voltage maximum |
| C. | distance between consecutive minimas |
| D. | distance between a minima and immediate maxima |
| Answer» B. distance between load and first voltage maximum | |
| 3934. |
The transmission over the USB is divided into ____ |
| A. | Frames |
| B. | Pages |
| C. | Packets |
| D. | Tokens |
| Answer» B. Pages | |
| 3935. |
A leader line can be drawn curved. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3936. |
The core boxes are provided with wires perform a function of which of the following component? |
| A. | Riser |
| B. | Gates |
| C. | Vents |
| D. | Shell |
| Answer» D. Shell | |
| 3937. |
A recursively ennumerable language L can be recursive if: |
| A. | L’ is recursively ennumerable |
| B. | Every possible sequence of moves of T, the TM which accept L, causes it to halt |
| C. | Both (a) and (b) |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3938. |
Which of the following enzymes is not correctly paired with its function? |
| A. | Acetyl transferase – adds acetyl group to lysine |
| B. | Methyl transferase – adds methyl group to serine |
| C. | Topoisomerase – associated with nuclear scaffold |
| D. | Deacetylases – removes acetyl groups from serine |
| Answer» C. Topoisomerase ‚Äö√Ñ√∂‚àö√ë‚àö¬® associated with nuclear scaffold | |
| 3939. |
Third-harmonic currents have phase difference of _____________ |
| A. | 0<sup>0</sup> |
| B. | 90<sup>0</sup> |
| C. | 180<sup>0</sup> |
| D. | 27<sup>0</sup> |
| Answer» B. 90<sup>0</sup> | |
| 3940. |
The type of expression in which operator succeeds its operands is? |
| A. | Infix Expression |
| B. | Prefix Expression |
| C. | Postfix Expression |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3941. |
Statement 1: Pulsed Electric field needs to followed by refrigeration storing to increase shelf life and prevent spoilage. |
| A. | |
| B. | True, False |
| C. | True, True |
| Answer» C. True, True | |
| 3942. |
Complex grease fibers are formed by reacting two dissimilar ______ with single_________ |
| A. | base, alkali |
| B. | alkali, acids |
| C. | alkali, base |
| D. | acids, alkali |
| Answer» E. | |
| 3943. |
What are ‘Air Dams’$ |
| A. | Spoilers at the front of a vehicle |
| B. | Spoilers at the rear of a vehicle |
| C. | Spoilers at the sides of a vehicle |
| D. | Spoilers at the top of a vehicle |
| Answer» B. Spoilers at the rear of a vehicle | |
| 3944. |
Turing machine can be represented using the following tools: |
| A. | Transition graph |
| B. | Transition table |
| C. | Queue and Input tape |
| D. | All of the mentioned |
| Answer» E. | |
| 3945. |
If the known DNA sequences are immobilized onto a solid support, it is called as: |
| A. | Blot |
| B. | Microarray |
| C. | DNA plate |
| D. | Column |
| Answer» C. DNA plate | |
| 3946. |
What is the formula for axial depth of low voltage winding? |
| A. | axial depth = number of secondary turns / width of the conductor |
| B. | axial depth = number of secondary turns * width of the conductor |
| C. | axial depth = number of secondary turns + width of the conductor |
| D. | axial depth = number of secondary turns – width of the conductor |
| Answer» C. axial depth = number of secondary turns + width of the conductor | |
| 3947. |
Nd-YAG laser can be used for drilling holes in the range of _____ diameter. |
| A. | 0.25 mm – 1.5 mm |
| B. | 1 mm – 1.5 mm |
| C. | 1.5 mm – 2 mm |
| D. | 2 mm – 2.5 mm |
| Answer» B. 1 mm ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1.5 mm | |
| 3948. |
Which of the following materials is suitable for making sealant while working with HF based solutions? |
| A. | Silicone rubber |
| B. | Polyurethane |
| C. | PVC |
| D. | Acrylonitrile-butadiene copolymer |
| Answer» E. | |
| 3949. |
In convection from the tip, we introduced a factor known as |
| A. | Fin length |
| B. | Correction length |
| C. | No fin length |
| D. | Radial length |
| Answer» C. No fin length | |
| 3950. |
Rejection frequency of notch filter can be expressed as _________________ |
| A. | 1/RC |
| B. | 1/C |
| C. | 1/R |
| D. | Unpredictable |
| Answer» B. 1/C | |