CSIR Physical Sciences: Questions 256 - 258 of 389

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Question number: 256

» Electronics and Experimental Methods » Digital Techniques and Applications » Registers

Appeared in Year: 2014

MCQ▾

Question

For the logic circuit shown in the figure below, a simplified equivalent circuit is –

A logic circuit of three inputs

A Logic Circuit of Three Inputs

In figure a logic circuit of three inputs of A, B and C is shown in figure.

A simplified equivalent circuit is – (June – 2014)

Choices

Choice (4) Response

a.

A simplified circuit -Choice A

A Simplified Circuit -Choice A

In figure a simplified circuit is shown.

b.

A simplified circuit -Choice B

A Simplified Circuit -Choice B

In figure a simplified circuit is shown.

c.

A simplified circuit -Choice C

A Simplified Circuit -Choice C

In figure a simplified circuit is shown.

d.

A simplified circuit -Choice D

A Simplified Circuit -Choice D

In figure a simplified circuit is shown.

Question number: 257

» Classical Mechanics » Lagrangian and Hamiltonian Formalism and Equations of Motion

Appeared in Year: 2013

MCQ▾

Question

A pendulum consists of a ring of mass M and radius R suspended by a massless rigid rod of length l attached to its rim. When the pendulum oscillates in the plane of the ring, the time period of oscillation is (Dec. 2013)

Choices

Choice (4) Response

a.

2πl+Rg

b.

2πg(2R2+2Rl+l2)14

c.

2πg(l2+R2)14

d.

2π2R2+2Rl+l2g(R+l)

Question number: 258

» Electronics and Experimental Methods » Digital Techniques and Applications » Registers

Appeared in Year: 2013

MCQ▾

Question

Four digital outputs V, P, T and H monitor the speed v , tyre pressure p , temperature t and relative humidity h of a car. These outputs switch from 0 to 1, when the values of the parameters exceed 85kmhr,2bar,400C and 50% , respectively. A logic circuit that is used to switch ON a lamp at the output E is shown ahead.

A logical circuit diagram of four digital outputs.

A Logical Circuit Diagram of Four Digital Outputs.

In figure a logical circuit diagram of four digital outputs V, P, T and H is shown.

Which of the following conditions will switch the lamp ON? (June)

Choices

Choice (4) Response

a.

v<85kmhr,p<2bar,t>400C,h>50%

b.

v<85kmhr,p<2bar,t>400C,h<50%

c.

v>85kmhr,p<2bar,t>400C,h<50%

d.

v>85kmhr,p<2bar,t<400C,h>50%

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