Mark out the WRONG statement. As compared to FDMA, the demand assignment system

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Question
Mark out the WRONG statement.
As compared to FDMA, the demand assignment system TDMA
Options
A. Needs very high-speed burst modems
B. Faces no problems caused by intermodulation of carriers so that transponder can be used at its full power
C. Needs high-speed manipulation of bit streams
D. Is less flexible so that channels of widely different capacities cannot used and intermixed

Correct Answer

Is less flexible so that channels of widely different capacities cannot used and intermixed

More questions

1.

List I (Parameters) List II (Values)

A. h₂₂ 1. r_b + r_e

B. h₁₁ 2. a_cb

C. h₂₁ 3.
Options
A. A-3, B-1, C-2
B. A-1, B-3, C-2
C. A-2, B-3, C-1
D. A-3, B-2, C-1

2. Match the following:

	List I (Symbol in Java comparison operator)		List II (Meaning)
A.	= =	1.	Greater than or equal to
B.	! =	2.	Equal
C.	> =	3.	Not equal

Options
A. A-1, B-2, C-3
B. A-3, B-2, C-1
C. A-1, B-3, C-2
D. A-2, B-3, C-1

3. Match the following:

	List I (Laws of Boolean)		List II (Relation algebra)
A.	Distributive law	1.	x + x = x
B.	DeMorgans law	2.	x(y + z) = xy + xz
C.	Idempotent law	3.	(x) = x
D.	Involution law	4.	(x + y) = xy

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

4. Match the following:

List I List II

A. e^-t ? (t) 1.

B. 2. j? X(?)

C. 3.

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

5. Match the following:

	List I (Properties)		List II (Relations)
A.	Linear but NOT time-invariant	1.	y(t) = t²x(t)
B.	Time-invariant but NOT linear	2.	y(t) = t \|x(t)\|
C.	Linear and time invariant	3.	y(t) = \|x(t)\|
		4.	y(t) = x(t - 5)

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

6. Match the following:

	List I (Types of N-bit ADC)		List II (Characteristics)
A.	Flash converter	1.	Integrating Type
B.	Successive	2.	Fastest converter approximation
C.	Counter ramp	3.	Maximum conversion time = N bits
D.	Dual slow	4.	Used a DAC in its feedback path

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

7. Match the following:

	List I (Binary)		List II (Hexadecimal)
A.	10101010	1.	FF
B.	11111111	2.	88
C.	10001000	3.	92
D.	10010010	4.	AA

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

8. Match the following:

	List I (Antenna)		List II (Communication system)
A.	Turnstile	1.	Radar
B.	Yagi	2.	TV transmission
C.	Dish	3.	MW broadcasting
D.	Vertical mast	4.	TV reception

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

9. Match the following:

	List I		List II
A.	Darlington amplifier	1.	A circuit using pnp and npn transistors
B.	CB amplifier	2.	A CS amplifier driving a CG amplifier
C.	Cascade amplifier	3.	A circuit with over-all voltage gain close to 1 and very large input impedance
D.	Complementary symmetry amplifier	4.	A circuit with low input impedance

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

10. Assertion (A): Silicon is the most favoured semiconductor material.
Reason (R): PIV for silicon diode is more than that for germanium diode.
Options
A. Both A and R are true and R is 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

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