84,

85,

86.

87.

88,

89.

90.

91.

92,

The bandwidth of the channel used in the hopset is called ⋅

(A)
(0)

Hopping bandwidth
Instantaneous bandwidth

(B)
(D)

Total hopping bandwidth
3 dB bandwidth

of TDMA system is a measure of the percentage of transmitted data that contains
information as opposed to providing overhead for the access scheme.

(A)
(0)

Mean
Signal to noise ratio

(B)
ட)

Figure of merit
Efficiency

If the length of the intrinsic region in IMPATT diode is 4 ൩ and the carrier drfit
velocity are 107 cm/s, then the nominal frequency of the diode is

(A)
(0)

12.5 GHz
30.5 GHz

(B)
(D)

A forward voltage can be applied to an SCR after its

(A)
(0)

anode voltage reduces to zero
reverse recovery time

(B)
(D)

Peak inverse rating of a TRIAC is

(A)
(8)
(6)

same as that of a thyristor
greater than that of a thyristor

25 GHz
24 GHz

gate recovery time
anode current reduces to zero

inferior and very much less than that of a thyristor
(D) not very significant due to the nature of its application

The load voltage of a chopper can be controlled by varying the

(A)
(0)

duty cycle
reactor position

(B)
(D)

firing angle
extinction angle

A single phase full bridge inverter can operate in the load commutation mode in case
load consist of

(A)
(0)

RLC overdamped
RLC critically damped

(B)
ட)

RLC underdamped
None of the above

is used for growing n-p-n hetero-junction phototransistor.

(A)
(0)

Liquid-phase tranquilizers
Solid substrate

(B)
ட)

The diode which emits a single wavelength coherent

(A)
(0)

LED
Laser diode

(B)
(D)

13

Hetero poleax
Liquid-phase epistaxis

ight is
Tunnel Diode
Photo diode

004/2021
[P.T.O.]