1 JULY 2021 CURRENT AFFAIRS QUIZ

For increased speed of response of an expansion pressure spring thermometer, the thermometer bulb should have a

Large area but small mass

High thermal conductivity

All of these

Small specific heat

TRUE ANSWER : ?
YOUR ANSWER : ?

Routh test

Criterion is not applicable to systems with polynomial characteristic equation

Cannot be used to test the stability of a control system containing transportation lag

Can not determine as to how many roots of the characteristics equation have positive real roots

Criterion provides information about the actual location of roots

TRUE ANSWER : ?
YOUR ANSWER : ?

Transfer function of transportation lag is

E-TS

None of these

1/(TS + 1)

ETS

TRUE ANSWER : ?
YOUR ANSWER : ?

The pressure sensing element of elastic type pressure gauge is never made in the form of a

Diaphragm

Bourdon tube

Strip

Bellow

TRUE ANSWER : ?
YOUR ANSWER : ?

The transfer function for a P-D controller is

Kc(1+τD s)

Kc/τD s

Kc τD s

Kc(1 +1/τD s)

TRUE ANSWER : ?
YOUR ANSWER : ?

Starting temperature of optical radiation pyrometer is __________ °C.

400

1200

1500

800

TRUE ANSWER : ?
YOUR ANSWER : ?

The term analogous to voltage in a single tank system is the

Level of liquid

Flow rate

Heat content of the system

Liquid volume in the tank

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ type of element is normally not used in the bimetallic thermometers.

Multiple helix

Single helix

Bourdon tube

Flat spiral

TRUE ANSWER : ?
YOUR ANSWER : ?

Nichol's chart deals with

Closed loop values vs. open loop values

R. vs. phase lag of second order

Frequency response values of controllers

R. vs. phase lag of first order

TRUE ANSWER : ?
YOUR ANSWER : ?

Routh stability method uses __________ loop transfer function.

Closed

Open

Either A or B

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?