Explore topic-wise MCQs in Automata Theory.

This section includes 524 Mcqs, each offering curated multiple-choice questions to sharpen your Automata Theory knowledge and support exam preparation. Choose a topic below to get started.

151.

Worker A takes 8 hours to do a job. Worker B takes 10 hours to do the same job. How long should it take both A and B, working together but indepently, to do the same job?

A. 4x4/9
B. 2x4/9
C. 4x2/9
D. 5x4/9
Answer» B. 2x4/9
152.

Microarrays are also known as

A. DNA chips
B. biochips
C. all of these
D. gene chips
Answer» D. gene chips
153.

Which of the following is correct for the prediction of time requirement in a batch fermenter?

A. Mathematical modelling of the fermentation process
B. Carrying out experiments
C. It is impossible to predict the time required for fermentation
D. Both ( and (
Answer» E.
154.

The difference between two numbers is 1365. When the larger number is divided by the smaller one, the quotient is 6 and the remainder is 15. Find the product of the numbers?

A. 441450
B. 451450
C. 454554
D. 481450
Answer» B. 451450
155.

Selectivity can be expressed as

A. mass fraction of the solute in the extract phase at equilibrium
B. ratio of the distribution coefficients in different solute
C. ratio of the mass fraction of the solute in the extract phase to the raffinate phase
D. mass fraction of the solute in the raffinate phase
Answer» C. ratio of the mass fraction of the solute in the extract phase to the raffinate phase
156.

The relationship between Keq, Km and Vmax is known as

A. Michaelis Menten equation
B. Haldane equation
C. Gibbs-Helmholtz equation
D. Numerical solution approach
Answer» C. Gibbs-Helmholtz equation
157.

If the number 5 * 2 is divisible by 6, then * = ?

A. 3
B. 2
C. 7
D. 6
Answer» C. 7
158.

How many kilogram of sugar costing Rs. 9 per kg must be mixed with 27 kg of sugar costing Rs. 7 per kg so that there may be a gain of 10% by selling the mixture at Rs. 9.24 per kg?

A. 42 kg
B. 36 kg
C. 63 kg
D. 54 kg
Answer» D. 54 kg
159.

In a single phase capacitor motor the direction of rotation will be in the opposite direction to the original when

A. two capacitors of equal value are used
B. electrolytic capacitor is replaced by paper capacitor
C. capacitor is replaced by an inductor.
D. capacitor is replaced by a resistance
Answer» D. capacitor is replaced by a resistance
160.

The windings of a transformer are divided into several coils because

A. It reduces voltage per coil
B. It is difficult to wind as one coil
C. None of the above
D. It requires less insulation
Answer» B. It is difficult to wind as one coil
161.

Which of the following/(s) can be used for the reduction of nitrate in waste water?

A. Micrococcus denitrificans cells encapsulated in liquid membranes
B. Growth of Hypomicrobium in presence of added methanol
C. Nitrosomonas europaen
D. Both ( and (
Answer» E.
162.

Why vortexing is undesirable in the agitation of biological systems?

A. Poor mixing despite the use of high stirrer speeds
B. The collision between the cells, impeller and air bubbles will lead to cell damage
C. All of the above
D. Mixing will not be in the turbulent region
Answer» D. Mixing will not be in the turbulent region
163.

27 female members left a club. As a result, the number of males became 50% more than the number of remaining females. After wards 45 males left, the remaining males being 75% of the number of remaining females. What was the initial number of females?

A. 87
B. 90
C. 80
D. 97
Answer» B. 90
164.

Normally, the auxiliary winding in a single phase induction motor is cut off when the motor reaches a certain speed except in case of

A. capacitor start motor
B. shaded pole motor
C. split phase motor.
D. capacitor start, capacitor run motor
Answer» E.
165.

In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?

A. Ribulose-l,5-diphosphate
B. Erythrose-4-phosphate
C. Alpha-ketoglutarate
D. Ribose-5-phosphate
Answer» B. Erythrose-4-phosphate
166.

If a book costs $5.70 after a 40% discount, what was its original price?

A. $7.98
B. $6.10
C. $9.50
D. $9.12
Answer» B. $6.10
167.

A container contains a mixture of milk and water in the ratio 7:5. When 9 liters of the milk and water are drawn off and the container is filled with 9 liters of water, the proportion becomes milk:water::7:9. How many liters does the container hold?

A. 48 liters
B. 30 liters
C. 36 liters
D. 45 liters
Answer» D. 45 liters
168.

The contents in bubble column and air lift reactor are mixed through

A. a mechanical internal moving part
B. compressed air
C. any of these
D. external pumping
Answer» C. any of these
169.

The difference between the place values of 7 and 3 in the prime number 527435 is

A. 5
B. 4
C. 6970
D. 45
Answer» D. 45
170.

Whether it be shallow or not, commitment is the ------------- the bedrock of any ----------loving relationship.

A. foundation------genuinely
B. expression----------perfunctory
C. key-------alarmingly
D. manifestation-------deep
Answer» B. expression----------perfunctory
171.

In a row of 21 girls, when M was shifted by four places towards right she became 12th from the left end. What was her earlier position from the right end?

A. 10th
B. 9th
C. 14th
D. 11th
Answer» D. 11th
172.

The number of baffles in a standard stirred tank bioreactor is

A. 6
B. 8
C. 2
D. 4
Answer» E.
173.

If the product of the present ages of the father and his son is 750 years and the ratio of their present ages is 6 : 5. Find the difference between their present ages:(CTS COMPANY)

A. 15 years
B. 10 years
C. 5 years
D. 8 years
Answer» D. 8 years
174.

The production of high quality and uniform embryos has been limited to only

A. alfalfa
B. carrot
C. sandalwood
D. both ( and (
Answer» E.
175.

Sherry is a type of

A. beer
B. wine
C. none of these
D. brandy
Answer» C. none of these
176.

Which of the following(s) is/are the most commonly used markers in yeast?

A. Ura 3
B. His 3
C. All of these
D. Trp 1
Answer» D. Trp 1
177.

In koji process for the fermentation to produce citric acid,

A. niger floats on the surface of solution
B. niger is used with solid substrate as sweet potato
C. both ( and (
D. Fungal mycelium grows through out the solution in a deep tank
Answer» C. both ( and (
178.

Which of the following statements is correct about the C#.NET code snippet given below? int d; d = Convert.ToInt32( !(30 < 20) );

A. A value 1 will be assigned to d
B. A value 0 will be assigned to d
C. The code reports an error.
D. A value -1 will be assigned to d
Answer» B. A value 0 will be assigned to d
179.

Two genes from a bacterium (Alcaligenes eutrophus) and a cotton gene produce

A. a vaccine against the bacterium
B. a plastic
C. herbicide resistance
D. a pharmaceutical product
Answer» C. herbicide resistance
180.

For an enzyme that displays Michaelis-Menten kinetics, the reaction velocity (as a fraction of Vmax) observed at [S] = 2 KM will be

A. 0.33
B. 0.09
C. 0.91
D. 0.66
Answer» D. 0.66
181.

How many of the following numbers are divisible by 3 but not by 9 ?2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276

A. 6
B. 5
C. 8
D. 7
Answer» B. 5
182.

Concentration of sucrose generally used in plant cell culture media is

A. 20-30 g/l
B. 10-15 g/l
C. 60-70 g/l
D. 40-50 g/l
Answer» B. 10-15 g/l
183.

Which of the following accumulates from factory waste?

A. Thiobacillus
B. Pseudomonas aeruginosa
C. Zoogloea ramigera
D. Pseudomonas putida
Answer» D. Pseudomonas putida
184.

The starting capacitor of a single phase motor is

A. Ceramic capacitor
B. Electrolytic capacitor
C. None of the above.
D. Paper capacitor
Answer» C. None of the above.
185.

A liter of milk sold by a milkman contains milk and water in the ratio 4 : 1. A house wife adds 100 ml of water and then uses 220 ml of the mixture to make curd. How much of the pure milk is she left with?(CTS COMPANY)

A. 560 ml
B. 640 ml
C. 800 ml
D. 760 ml
Answer» C. 800 ml
186.

It -----------since early morning.

A. is raining
B. will rain
C. has been raining
D. rained
Answer» D. rained
187.

The encapsulation of somatic embryos can be carried out by

A. gel complexation
B. automatic encapsulation process
C. coating proteins
D. both ( and (
Answer» E.
188.

The sum of four consecutive even integers is 1284. The greatest of them is:

A. 342
B. 324
C. 382
D. 364
Answer» C. 382
189.

In aerobic microorganisms cultures radial flow impellers are used because

A. they provide low shear mixing conditions
B. they provide energy efficient high turbulent mixing conditions
C. . they ensure that bubble size is maximized leading to high oxygen transfer rates
D. they provide high shear mixing conditions
Answer» E.
190.

Wort is boiled with the hops

A. to provide bitter taste and flavour to the beer
B. to help in protein coagulation
C. All of the above
D. to help in the coagulation of tannins
Answer» B. to help in protein coagulation
191.

A man wants to sell his scooter. There are two offers, one at Rs. 12,000 cash and the other a credit of Rs. 12,880 to be paid after 8 months, money being at 18% per annum. Which is the better offer?

A. s. 12,880 at credit
B. Rs. 12,000 in cash
C. [NIL]
D. Both are equally good
Answer» C. [NIL]
192.

Which of the following is the correct way to obtain the number of elements present in the array given below? int[] intMyArr = {25, 30, 45, 15, 60}; 1.intMyArr.GetMax; 2.intMyArr.Highest(0); 3.intMyArr.GetUpperBound(0); 4.intMyArr.Leng

A. 3, 4
B. 1, 2
C. 1, 5
D. 3, 5
Answer» B. 1, 2
193.

A very common mutualistic, symbiotic relationship between a fungus and the roots of a plant is

A. mycorrhizal
B. lichen
C. basidiomycete
D. ascomycete
Answer» B. lichen
194.

To maintain aseptic conditions during fermentation which of the following is needed?

A. Sterilization of air supply
B. Sterilization of fermentor
C. All of these
D. Aeration and agitation
Answer» D. Aeration and agitation
195.

The transfer of intermediate vectors into Agrobacterium are brought about by

A. biparental mating
B. transformation
C. transduction
D. triparental mating
Answer» E.
196.

Maximum amount of foreign DNA introduced into SV 40 viruses is

A. 5 kb
B. 10 kb
C. 1 kb
D. 2.5 kb
Answer» E.
197.

How many numbers divisible by 8 are there between 900 and 1700?

A. 100
B. 95
C. 110
D. 105
Answer» B. 95
198.

In which of the following phase preparations for genome separation are made?

A. G1
B. C
C. M
D. G2
Answer» D. G2
199.

Nitrosomonous and Nitrobacter obtain their carbon for growth from

A. carbon dioxide
B. organic compounds
C. none of these
D. elementary carbon
Answer» B. organic compounds
200.

Which motor is generally used for electric shavers ?

A. Hysteresis motor
B. Shaded pole motor
C. Universal motor.
D. Reluctance motor
Answer» D. Reluctance motor