Explore topic-wise MCQs in Logical and Verbal Reasoning.

This section includes 1405 Mcqs, each offering curated multiple-choice questions to sharpen your Logical and Verbal Reasoning knowledge and support exam preparation. Choose a topic below to get started.

1301.

The ability to identify previously encountered material is ______________________

A. explicit memory
B. recall
C. recognition
D. relearning
Answer» D. relearning
1302.

What radioactive molecule is used to end-label an oligonucleotide?

A. (alpha)-32P-ATP
B. (alpha)-32P-dUTP
C. (gamma)-32P-ATP
D. Any of these
Answer» D. Any of these
1303.

Consider the following logic families:(a) Standard TTL logic family(b) ECL - logic family(c) RTL - logic family(d) CMOS - logic familyArrange the above logic families in order of their decreasing power dissipation:

A. (b), (c), (d) and (a)
B. (b), (c), (a) and (d)
C. (c), (b), (a) and (d)
D. (c), (b), (d) and (a)
Answer» C. (c), (b), (a) and (d)
1304.

From the following identify those which illustrate the fallacy of the unproved middle ?A. AshrayasidhaB. SwarupasidhaC. VyapyatvasidhaD. VirudhaE. BadhitaChoose the correct answer from the options given below:

A. A, B and C only
B. B, C and D only
C. A, D and E only
D. A, C and D only
Answer» B. B, C and D only
1305.

In locations where the humidity is low, ICs based on one of the following technologies should be handled only after grounding the body. The technology is

A. TTL
B. CMOS
C. DTL
D. I2L
Answer» C. DTL
1306.

Consider the following two statements.S1: If a candidate is known to be corrupt, then he will not be electedS2: If a candidate is kind, he will be electedWhich one of the following statements follows from S1 and S2 as per sound inference rules of logic?

A. If a person is known to be corrupt, he is kind
B. If a person is not known to be corrupt, he is not kind
C. If a person is kind, he is not known to be corrupt
D. If a person is not kind, he is not known to be corrupt
Answer» D. If a person is not kind, he is not known to be corrupt
1307.

Given below are two statements:Statement I: Keval vyatireki from of inference is that when the middle term is the differentium of the minor term.Statement II: Kevalanvayi form of inference is that when the middle term is both positively and negatively related to the major term.In the light of the above statements, choose the correct answer from the options given below:

A. Both Statement I and Statement II are true
B. Both Statement I and Statement II are false
C. Statement I is correct but Statement II is false
D. Statement I is incorrect but Statement II is true
Answer» D. Statement I is incorrect but Statement II is true
1308.

CMOS logic families are associated with:1. Low power dissipation2. High noise immunity3. Low Fan-out4. Comparatively high logic voltage swing

A. 1, 2 and 4 only
B. 1, 2 and 3 only
C. 2, 3 and 4 only
D. 1, 2, 3 and 4
Answer» B. 1, 2 and 3 only
1309.

If \(x = 7 - 4\sqrt 3 \) then the value of \(x + \frac{1}{x}\) is

A. \(3\sqrt 3 \)
B. \(8\sqrt 3 \)
C. 14
D. 14 + \(8\sqrt 3 \)
Answer» D. 14 + \(8\sqrt 3 \)
1310.

Match List I with List IIList IList II(concepts)(Schools)A. NirvanaI. SankhyaB. NihshreyasaII. JainismC. ApavargaIII. UpanishadsD. MokshaIV. Buddhism Choose the correct answer from the options given below:

A. A - IV, B - III, C - II, D - I
B. A - I, B - II, C - IV, D - III
C. A - II, B - I, C - III, D - IV
D. A - III, B - IV, C - II, D - I
Answer» B. A - I, B - II, C - IV, D - III
1311.

Match List-I with List-II:List-I(Characteristics)List-II(Logic Family)a)Improved noise immunity / increased complexityi)TTLb)Fastest of all logic families / Greater power consumptionii)ECLc)Most popular logic family / Moderate packing densityiii)MOSd)Simplest to fabricate / Susceptible to static charge dosageiv)CMOSChoose the correct option from those given below:

A. a-iv; b-ii; c-i; d-iii
B. a-ii; b-iii; c-i; d-iv
C. a-ii; b-iii; c-iv; d-i
D. a-i; b-iv; c-ii; d-iii
Answer» B. a-ii; b-iii; c-i; d-iv
1312.

Find the output X for the given logic circuit.

A. \(X = \overline {A+B} \; C\)
B. X = (A + B) C
C. \(X = \overline {AB}+ C\)
D. X = (A B) C
Answer» C. \(X = \overline {AB}+ C\)
1313.

In a 2-input CMOS logic gate, one input is left floating i.e. connected neither to ground nor to a signal. What will be the state of that input?

A. 1
B. 0
C. Same as that of the other input
D. Indeterminate (neither 1 nor 0)
Answer» E.
1314.

In a 3-input CMOS NAND gate, the substrate terminals of NMOS transistors are grounded (lowest potential available in the circuit) and the substrate terminals of PMOS transistors are connected to VDD (maximum positive potential available in the circuit). Which of the following transistors may suffer in this circuit from the body bias effect?

A. 2 NMOS transistors
B. 2 PMOS transistors
C. 1 NMOS transistor
D. 1 PMOS transistor
Answer» B. 2 PMOS transistors
1315.

Let P and Q be two propositions, ¬ (P ↔ Q) is equivalent to:

A. P ↔ ¬ Q
B. ¬ P → Q
C. ¬ P ↔ ¬ Q
D. Q → P
Answer» B. ¬ P → Q
1316.

Consider the following two well-formed formulas in prepositional logic.F1: \(P \Longrightarrow \neg \;P\)F2: \((P \Longrightarrow \neg \;P) \;\vee\; (\neg \; P \Longrightarrow P)\)Which of the following statements is correct ?

A. F1 is Satisfiable, F2 is valid
B. Fl is unsatisfiable, F2 is Satisfiable
C. F1 is unsatisfiable, F2 is valid
D. Fl and F2 both are Satisfiable
Answer» B. Fl is unsatisfiable, F2 is Satisfiable
1317.

If A and B are logical inputs to the following circuit, determine the logical relation between the inputs and the output C.

A. \(C = \overline {AB} \)
B. C = AB
C. C = A xor B
D. C = A + B
Answer» E.
1318.

Based on the current technology, __________. is the fastest logic family.

A. TTL
B. ECL
C. MOS
D. CMOS
Answer» C. MOS
1319.

For CMOS family Low input and HIGH input are defined as _____ and ______ respectively.

A. 0 V to + 1.5 V and 3.5 V to + 5 V
B. +3.5 V to + 5 V and 0 V to + 1.5 V
C. 0 V to + 0.4 V and 3.5 V to + 5 V
D. 0 V to + 0.8 V and 2.4 V to + 5 V
Answer» B. +3.5 V to + 5 V and 0 V to + 1.5 V
1320.

Consider the following statements about CMOS:1. CMOS logic inverter has a maximum signal swing of 0 V to VDD.2. The output signal swing is independent of the exact value of aspect ratio and other device parameters.3. It is a fast switching device with wide noise margins.4. It has zero input resistance and infinite output resistance.Which of these statements are correct?

A. 1, 2, 3 and 4
B. 1, 2 and 4 only
C. 2, 3 and 4 only
D. 1, 2 and 3 only
Answer» E.
1321.

Consider the first-order logic sentence

A. There exists at least one model of 𝜑 with universe of size less than or equal to 3.
B. There exists no model of 𝜑 with universe of size less than or equal to 3.
C. There exists no model of 𝜑 with universe of size greater than 7
D. Every model of 𝜑 has a universe of size equal to 7
Answer» B. There exists no model of 𝜑 with universe of size less than or equal to 3.
1322.

Calculate the fan out of a TTL circuit with the following specifications:IOL(max) = 32 mA, IIL(max) = 1.6 mA, IOH(max) = 400 uA, IIH(max) = 10 uA

A. 10
B. 20
C. 40
D. 60
Answer» C. 40
1323.

Match List I with List II:List IList II(Concept/Doctrine)(School)(A) Pratityasamudpada(I) Vedant(B) Abhava(II) Sankhya(C) Samyavastha(III) Nyaya(D) Adhyasa(IV) BuddhismChoose the correct answer form the options given below:

A. (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
B. (A) - (II), (B) - (IV), (C) - (III), (D) - (I)
C. (A) - (IV), (B) - (III), (C) - (II), (D) - (I)
D. (A) - (IV), (B) - (I), (C) - (II), (D) - (III)
Answer» D. (A) - (IV), (B) - (I), (C) - (II), (D) - (III)
1324.

“If X, then Y unless Z” is represented by which of the following formulae in propositional logic ?

A. \(\left( {X \wedge Y} \right) \to \neg \;Z\)
B. \(\left( {X \wedge \neg \;Z} \right) \to Y\)
C. \(X \rightarrow (Y \wedge \neg\;Z)\)
D. \(Y \rightarrow (X \wedge \neg\;Z)\)
Answer» C. \(X \rightarrow (Y \wedge \neg\;Z)\)
1325.

A unipolar logic family uses only ________ devices.

A. SCR
B. JFET
C. MOSFET
D. BJT
Answer» D. BJT
1326.

Match List I with List IIList IList IIConceptsSchoolsA. AbhavaI. JainismB. AnupalabdhiII. BuddhismC. ApohaIII. VedantaD. SyadavadaIV. NyayaChoose the correct answer from the options given below:

A. A - II, B - III, C - I, D - IV
B. A - III, B - IV, C - II, D - I
C. A - IV, B - III, C - II, D - I
D. A - I, B - II, C - IV, D - III
Answer» D. A - I, B - II, C - IV, D - III
1327.

In terms of Indian logic, "This hill has smoke which is invariably associated with fire", is called:

A. Pratigya or proposition
B. Universal concomitance together with an example
C. Upanaya - the application of the universal concomitance to the present case
D. Conclusion or Nigamana drawn from the preceding proposition
Answer» D. Conclusion or Nigamana drawn from the preceding proposition
1328.

If \(\sqrt {1 + \frac{x}{{225}}} = \frac{{17}}{{15}}\) , then the value of x is ______.

A. 25
B. \(3\sqrt {15} \)
C. \(4\sqrt {17} \)
D. 64
Answer» E.
1329.

Arrange the following in terms of decreasing order of their propagation delay:a) RTLb) ECLc) TTLd) CMOS

A. a, d, c, b
B. a, b, d, c
C. d, a, c, b
D. b, d, c, a
Answer» D. b, d, c, a
1330.

Let P, Q, R and S be Propositions. Assume that the equivalences \(P\leftrightarrow(Q \vee \;\neg\; Q)\) and \(Q \leftrightarrow R\) hold. Then the truth value of the formula \(\left( {P \wedge Q} \right) \Rightarrow \left( {\left( {P \wedge R} \right) \vee S} \right)\) is always:

A. True
B. False
C. Same as truth table of Q
D. Same as truth table of S
Answer» B. False
1331.

In which of the below-mentioned logic families, the transistors operate between cut-off and active (non-saturation) states?(i) Transistor-Transistor Logic (TTL)(ii) Schottky TTL(iii) Diode Transistor Logic (DTL)(iv) Emitter Coupled Logic (ECL)Choose the correct answer from the code given below:Code:

A. (i) and (iii) are correct
B. (ii) and (iii) are correct
C. (i) and (iv) are correct
D. (ii) and (iv) are correct
Answer» E.
1332.

An acceptable voltage range of a logic 0 for TTL

A. 0 to 0.8 V
B. 0 to 1.5 V
C. 2 to 5 V
D. 3.5 to 5 V
Answer» B. 0 to 1.5 V
1333.

Given below are two statements:Statement I: Upamiti is defined as knowledge of the relation between a word and its denotation.Statement II: Verbal testimony is the statement of a trustworthy person and consists in understanding its meaning.In the light of the above statements, choose the most appropriate answer from the options given below:

A. Both Statement I and Statement II are correct
B. Both Statement I and Statement II are incorrect
C. Statement I is correct but Statement II is incorrect
D. Statement I is incorrect but Statement II is correct
Answer» B. Both Statement I and Statement II are incorrect
1334.

In TTL family output HIGH and input LOW are ______ and _______ respectively.

A. + 2.4 to + 5 V and 0 to + 0.8 V
B. + 2.0 to + 5 V and 0 to + 0.8 V
C. + 2.4 to + 5 V and 0 to + 0.4 V
D. + 2.0 to + 5 V and 0 to + 0.4 V
Answer» D. + 2.0 to + 5 V and 0 to + 0.4 V
1335.

_______ has the maximum fan out capacity

A. MOS
B. CMOS
C. ECL
D. RTL
Answer» C. ECL
1336.

If f(x) = x is my friend, and p(x) = x is perfect. then correct logical translation of the statement “some of my friends are not perfect” is _______.

A. ∀x (f(x) ∧ ¬ p(x))
B. ∃x (f(x) ∧ ¬ p(x))
C. ¬ (f(x) ∧ ¬ p(x))
D. ∃x ( ¬ f(x) ∧ ¬ p(x))
Answer» C. ¬ (f(x) ∧ ¬ p(x))
1337.

For the circuit shown in the figure, P and Q are the inputs and Y is the output.The logic implemented by the circuit is

A. XNOR
B. XOR
C. NOR
D. OR
Answer» C. NOR
1338.

Match List-I with List-II:List-IList-IIa)CMOSi) b)Depletion load MOS inverterii) c)Pass transistoriii) d)Transmission gateiv)Choose the correct option from those given below:

A. a-iii; b-iv; c-ii; d-i
B. a-iv; b-i; c-iii; d-ii
C. a-i; b-ii; c-iv; d-iii
D. a-ii; b-iii; c-i; d-iv
Answer» B. a-iv; b-i; c-iii; d-ii
1339.

Match List-I with List-II and select the correct answer using the code given below the lists:List - IList - IIA. DCTL1. Multiple collectorsB. ECL2. Current hoggingC. I2L3. High speed

A. A - 2, B - 3, C - 1
B. A - 1, B - 3, C - 2
C. A - 2, B - 1, C - 3
D. A - 1, B - 2, C - 3
Answer» B. A - 1, B - 3, C - 2
1340.

Let p, q, and r be propositions and the expression (p → q) → r be a contradiction. Then the expression (r → p) → q is

A. A tautology
B. A contradiction.
C. Always TRUE when p is FALSE
D. Always TRUE when q is TRUE
Answer» E.
1341.

Assertion (A): Emitter - Coupled Logic (ECL) is the fastest of all logic families and used in applications where very high speed is essential.Reason (R): High speed in ECL is because the transistors are used in difference amplifier configuration in which they are never driven into saturation and the storage time is eliminated.

A. Both (A) and (R) are true and (R) is the correct explanation of (A).
B. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
C. (A) is true, but (R) is false.
D. (A) is false, but (R) is true.
Answer» B. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
1342.

Consider the following statements:P: Good mobile phones are not cheapQ: Cheap mobile phones are not goodL: P implies QM: Q implies PN: P is equivalent to QWhich one of the following about L, M, and N is CORRECT?

A. Only L is TRUE
B. Only M is TRUE
C. Only N is TRUE
D. L, M and N are TRUE
Answer» E.
1343.

How is the speed-power product of a logic family determined?

A. The propagation delay in s is multiplied by the power dissipation in mW
B. The propagation delay in ms is multiplied by the power dissipation in mW
C. The propagation delay in ns is multiplied by the power dissipation in mW
D. The propagation delay in ns is multiplied by the power dissipation in W
Answer» D. The propagation delay in ns is multiplied by the power dissipation in W
1344.

A particular logic family has VOH = 5 V, VOL = 1 V, VIH = 3.5 V and VIL = 2 V. The noise margin values NMH and NML will be

A. 1.5 V, 1 V
B. 5 V, 1 V
C. 1 V, 1.5 V
D. 4.1 V, 5 V
Answer» B. 5 V, 1 V
1345.

Given thatB(a) means “a is a bear”F(a) means “a is a fish” andE(a, b) means “a eats b”Then what is the best meaning of∀ x [F(x) → ∀ y (E(y, x) → b(y))]

A. Every fish is eaten by some bear
B. Bears eat only fish
C. Every bear eats fish
D. Only bears eat fish
Answer» E.
1346.

Direction: Given question consists of two statements, one labeled as the 'Assertion (A)' and the other as 'Reason (R)'. You are to examine these two statements carefully and select the answers to these items using the codes given below.Assertion (A): Emitter-coupled logic (ECL) provides high-speed logic gates.Reason (R): ECL prevents adverse effects of diffusion capacitance as it does not operate fully saturated or cut off.

A. Both A and R are individually true and R is the correct explanation of A
B. Both A and R are individually true but R is NOT the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» B. Both A and R are individually true but R is NOT the correct explanation of A
1347.

Given below are two statements:Statement I: In Indian Philosophy, Nya̅ya advocates the theory of extrinsic validity of knowledge called 'Paratah Pramanvad".Statement II: The Mimansa advocates the self-validity of knowledge both in respect of its origin and ascertainment.In the light of the above statements, choose the most appropriate answer from the options given below:

A. Both Statement I and Statement II are correct
B. Both Statement I and Statement II are incorrect
C. Statement I is correct but Statement II is incorrect
D. Statement I is incorrect but Statement II is correct
Answer» B. Both Statement I and Statement II are incorrect
1348.

For a typical CMOS process, the minimum feature size is set to be 25 μm. The minimum line width at the process is set to be ______

A. 100 μm
B. 12.5 μm
C. 50 μm
D. 25 μm
Answer» D. 25 μm
1349.

Match List I with List-II and select the correct answer using the code given below the lists: List I List IIA.HTL1.High fan-outB.CMOS2.The highest speed of operationC.I2L3.High noise immunityD.ECL4.Lowest product of power and delay

A. A – 3, B – 4, C – 1, D - 2
B. A – 2, B – 4, C – 1, D - 3
C. A – 3, B – 1, C – 4, D - 2
D. A – 2, B – 1, C – 4, D - 3
Answer» D. A – 2, B – 1, C – 4, D - 3
1350.

Negation of the proposition ꓱ x H(x) is:

A. ꓱ x ¬ H(x)
B. ∀ x ¬ H(x)
C. ∀ x H(x)
D. ¬ x H(x)
Answer» C. ∀ x H(x)