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Q1. | Which of the following is used to obtain output position in a position control system? |

A. | Strain gauge [Wrong Answer] |

B. | Load cell [Correct Answer] |

C. | Synchro [Wrong Answer] |

D. | Thermistor [Wrong Answer] |

View Answer
Explanation:-
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**Also Read Similar Questions Below :**

⇒ An RLC series circuit is excited by 200 V, 100 Hz supply. The current is 20 A. If R = 10 Ω, X

_{L}= 50 Ω, X

_{C}is

10 Ω

14.14 Ω

7.07 Ω

50 Ω

⇒

**Assertion (A):** The hybrid p model of a transistor can be reduced to *h* parameter model and vice versa.

**Reason (R):** Hybrid p and *h* parameter models are interrelated as both of them describe the same device.

Both A and R are true and R is correct explanation of A

Both A and R are true but R is not a correct explanation of A

A is true but R is false

A is false but R is true

⇒ A microwave link uses only line-of-sight propagation.

TRUE

FALSE

⇒ Probability density function of thermal noise is

Poisson

Binomial

Gaussian

None of the above

⇒ The r.m.s. value of a half-wave rectified current is 100 A. Its value for full-wave rectification would be __________ amperes.

141.4

200

200/p

40/p

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | R_{T} | 1. | A = D |

B. | R_{h} | 2. | h_{12} = h_{21} |

C. | S_{T} | 3. | AD - BC = 1 |

D. | S_{h} | 4. | h_{21} = - h_{21} |

5. | B = C | ||

6. | Δh = 1 |

A-3, B-4, C-1, D-6

A-3, B-2, C-5, D-4

A-5, B-4, C-1, D-2

A-5, B-4, C-1, D-6

⇒ A single phase half wave controlled rectifier circuit has a free wheeling diode. The load is a combination of R and L. The firing angle is a. The period of conduction of SCR and free wheeling diode respectively are

a < ω

*t*< p and p < ω

*t*< (2p + a)

a < ω

*t*< p and p < ω

*t*< 2p

a < ω

*t*< (p + a) and (p + a) < ω

*t*< 2p

a < ω

*t*< p and p < ω

*t*< (2p - a)

⇒ The timing difference between a slow memory and fast processor can be resolved if

processor is capable of waiting

external buffer is used

either (a) or (b)

neither (a) nor (b)

⇒ Saturation region of a JFET is also known as

source region

analog region

pinch off region

ohmic region

⇒ Which of the following is abnormal variation in ionosphere?

Diurnal variation

Seasonal variation

Ionospheric storms

None of the above

⇒ The light output of LED varies as (current)

^{n}. The value of

*n*is about

0.5

1

1.3

2.1

⇒ The gradient of any scalar field always yields __________ .

a solenoidal field

a conservative field

an irrotational field

none of these

⇒ A sequence

*x*(

*n*) with the

*z*transform X(

*z*) =

*z*

^{4}+

*z*

^{2}- 2

*z*+ 2 - 3

*z*- 4 is applied as an input to a linear, time invariant system with the impulse response

*h*(

*n*) = 2δ(

*n*- 3) wh

-6

zero

2

-4

⇒ At resonance, the parallel circuit constituted by an iron-cored coil and a capacitor behaves

open circuit

short circuit

pure resistor of value R

pure resistor of value much higher than R

⇒ An AC source or RMS voltage 20V with internal impedance Z

_{s}= (1 + 2

*j*) Ω feeds a load of impedance Z

_{L}= (7 + 4

*j*) Ω in the figure below. The reactive power consumed by the loa

8 VAR

16 VAR

28 VAR

32 VAR

⇒ Which of the following frequency is likely to be associated with AM radio broadcast?

1000 kHz

100 MHz

500 MHz

10 GHz

⇒ For a second order system with 0 < ξ < 1, the angle which poles make with negative real axis is

sin

^{-1}ξ

cos

^{-1}ξ

tan

^{-1}ξ

cot

^{-1}ξ

⇒ A transmission line of characteristic impedance

*z*

_{0}= 50 Ω. Phase Velocity = 2 x 10

^{8}m/sec, and length

*l*= 1 m is terminated by a load

*z*

_{1}= (30 -

*j*40) ohms. The input impedance of the line for a frequency of 100 MHz will be

(30 +

*j*x 40) Ω

(30 -

*j*40) Ω

(50 +

*j*x 40) Ω

(50 -

*j*40) Ω

⇒ RMS value of

*i*(

*t*) = 10[1 + sin (-

*t*)] is

10

10/2

l50

102

⇒ Consider the following statements a half adder.

- As a half subtractor also
- has two outputs C
_{H}=*x*x*y*and S_{n}=*x*⊕*y*for two inputs*x*and*y* - has two outputs CH =
*x*+*y*and SH =*x*⊕*y*for two inputs*x*and*y* - is a combinational circuit

1, 3, 4

1, 2, 4

4 only

2 and 3

⇒ The reactance of bypass capacitor in a CE amplifier circuit should be

equal to the resistance in parallel with it

equal to 10% or less of the resistance in parallel with it

equal to 50% of the resistance in parallel with it

independent of the resistance in parallel with it

⇒ When .4546 E 5 and .5433 E 7 are to be added in normalized floating point mode

none of the numbers is changed to any other form

.4546 E 5 is changed .004546 E 7 and .5433 E 7 is not changed

.5433 E 7 is changed to 54.33 E 5 and .4546 E 5 is not changed

both the numbers are changed and their exponents are made equal to 6

⇒ In 8085 microprocessor, if instruction RST is written in a program then the program will jump to location

0020 H

0024 H

0028 H

002 CH

⇒ Which of the following radio waves are not reflected by ionosphere?

Waves above 1 kHz

Waves above 1 MHz

Waves above 10 MHz

Waves above 30 MHz

⇒ The direction in a Yagi Uda antenna is longer than the radiating element.

TRUE

FALSE

⇒ In an ac network the sum of currents entering a node is 10 ∠45°. The sum of currents leaving the node is

19.32 ∠45°

15 ∠45°

20 ∠45°

zero

⇒

Match the following:

List I (Instrument) | List II (Parameters) | ||
---|---|---|---|

A. | Moving coil galvanometer | 1. | High inertia, soft spring control |

B. | Ballistic galvanometer | 2. | No control, high damping |

C. | Vibration galvanometer | 3. | Soft spring control, critical damping |

D. | Moving coil flux meter | 4. | Low inertia, tuned spring control |

A-4, B-2, C-3, D-1

A-1, B-3, C-2, D-4

A-2, B-1, C-4, D-3

A-3, B-1, C-4, D-2

⇒ What is the characteristic impedance at 10 MHz?

547.7 Ω

54.7 Ω

5.47 Ω

.547 Ω

⇒ Consider the sequence

*x*[

*n*] = [- 4 -

*j*5 1 + J2 4]

[- 4 - J2.5 J2 4 -

*J*2.5]

[- J2.5 1 J2.5]

[- J5 J2 0]

[-

*x*1 4]

⇒ For parallel plane waveguides, which is the mode with lowest cut-off frequency?

TE

_{10}

TM

_{10}

TEM

TE

_{11}