Phase lag of the sinusoidal response of a first order system is 120� 30� 180� 90

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Question
Phase lag of the sinusoidal response of a first order system is
Options
A. 120�
B. 30�
C. 180�
D. 90�

Correct Answer

90�

More questions

2. A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container
Options
A. will be greater than 298 K.
B. will be 298 K.
C. will be less than 298 K.
D. can not be determined.

3. Souders Brown equation given by, , is used for the calculation of the __________ in a continuous distillation column.
Options
A. diameter of the bubble cap column
B. diameter of the seive plate column
C. tray pressure drop
D. residence time in the downcomer for the disengagement of entrained vapour

5. Nitrogenous fertiliser is required
Options
A. during the early stage of growth to promote development of stem and leaves.
B. for accelerating fruit formation in later stage of growth.
C. to lessen the effect of excessive potash application.
D. none of these.

7. Mass transfer co-efficient of liquid is
Options
A. affected more by temperature than that for gases.
B. affected much less by temperature than that for gases.
C. not affected by the temperature.
D. none of these.

8. Pressure in a Pressurised Water Reactor (PWR) is used for
Options
A. maintaining constant pressure in the primary cooling circuit under varying loads.
B. superheating the steam.
C. pressurising the water in the primary coolant circuit.
D. none of these.

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