Controlled buffers can be useful __________

In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

Controlled buffers can be useful ____________

A

To control the circuit’s output into the bus

B

In comparison of component’s output with its input

C

In increasing the output from its low input

D

All of the Mentioned

Assertion (A): DC servomotors are more commonly used in armature controlled mode than field controlled mode. Reason (R): Armature controlled Dc motors have higher starting torque than fiels controlled motors.

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 correct explanation of A

C

A is true but R is false

D

A is false but R is true

Processes P1 and P2 have a producer-consumer relationship, communicating by the use of a set of shared buffers. P1: repeat Obtain a full buffer Empty it Return an empty buffer forever P2 P2P2: repeat Obtain a full buffer Empty it Return an empty buffer forever Increasing the number of buffers is likely to do which of the following? I. Increase the rate at which requests are satisfied (throughput) II. Decrease the likelihood of deadlock III. Increase the ease of achieving a correct implementation

A

III only

B

II only

C

I only

D

II and II only

Logic circuits that are designated as buffers, drivers or buffers/drivers are designed to have _______________

A

A greater current/voltage capability than an ordinary logic circuit

B

Greater input current/voltage capability than an ordinary logic circuit

C

A smaller output current/voltage capability than an ordinary logic

D

Greater the input and output current/voltage capability than an ordinary logic circuit

Which buffers exchange the empty buffers for full ones?

A

single buffer

B

buffer exchange

C

directional buffer

D

double buffer

Study the following statements.i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy.ii) The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy.iii) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy.iv) The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy.The correct answer is

A

(i) and (iii)

B

(ii) and (iii)

C

(i) and (iv)

D

(ii) and (iv)

An Op-Amp can be connected to provide 1. Voltage controlled current source 2. Current controlled voltage source 3. Current controlled current source Which of the above statements are correct?

A

1 and 2 only

B

1 and 3 only

C

2 and 3 only

D

1, 2 and 3

Match the items of List I with the items of List II and choose the correct answer from the code given below. List I (Type of Interview) List II (Usual Application) (a) Structured (i) A realistic approach that yields comparable answers plus in-depth insights (b) Unstructured (ii) Useful to understand the applicant's reasoning and analytical abilities under modest stress (c) Mixed (iii) Useful for valid results, especially when dealing with a large number of applicants (d) Behavioural (iv) Useful when the interviewer tries to probe personal details of the candidate to analyze why they are not fit for the job

A

(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)

B

(a) - (iv), (b) - (ii), (c) - (i), (d) - (iii)

C

(a) - (i), (b) - (iv), (c) - (ii), (d) - (iii)

D

(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)

Consider the following statements (a) BJT is a current controlled device with high input impedance and high gain band width (b) FET is a voltage- controlled device with high input impedance and low gain bandwidth (c) UJT is a negative resistance device and can be used as an oscillator (d) FET and UJT can be used for amplification Which of the above statements are correct

A

(a) and (b)

B

(b) and (c)

C

(c) and (d)

D

(a) and (d)

Controlled buffers can be useful __________

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