What Difference between null type and deflection type instrument?

What Difference between null type and deflection type instrument?
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Accurate measurement of deflection angles with a transit not properly adjusted may be made by (A) Setting the Vernier A at zero at back station and then plunging the telescope (B) Setting the Vernier A at zero at back station and turning the instrument to the forward station (C) Taking two back sights one with the telescope normal and the other with telescope inverted (D) None of these

Description : Accurate measurement of deflection angles with a transit not properly adjusted may be made by (A) Setting the Vernier A at zero at back station and then plunging the telescope (B) Setting the ... back sights one with the telescope normal and the other with telescope inverted (D) None of these

Last Answer : (C) Taking two back sights one with the telescope normal and the other with telescope inverted

An angle of deflection right, may be directly obtained by setting the instrument to read (A) Zero on back station (B) 180° on back station (C) 90° (D) 270° on back station

Description : An angle of deflection right, may be directly obtained by setting the instrument to read (A) Zero on back station (B) 180° on back station (C) 90° (D) 270° on back station

Last Answer : (A) Zero on back station

As the deflection of the moving system increases, the controlling torque in an indicating instrument.

Description : As the deflection of the moving system increases, the controlling torque in an indicating instrument.

Last Answer : increases

What is the typical full-scale deflection current of a moving coil instrument?

Description : What is the typical full-scale deflection current of a moving coil instrument?

Last Answer : 50mA

Derive the relation for deflection torque in PMMC instrument.

Description : Derive the relation for deflection torque in PMMC instrument. 

Last Answer : Ans: The length of coil be l meter and width of coil be d meter. Assume I is the current flowing in the ciol having N turns. Assume B as the flux density in the air gap then F=BIL ... a direct indication of the current in the coil. The pointer deflection can therefore be used to measure current.

Draw the diagram of PMMC instrument and state the deflection torque equation

Description : Draw the diagram of PMMC instrument and state the deflection torque equation

Last Answer : Equation Ʈ= B*A*I*N Where r= torque Newton. Meter B = flux density in the air gap. Wb/m2 A = effective coil area (m) N= number of turns of wire of the coil

A permanent magnet moving coil instrument gives full scale deflection of 25mA when a voltage of 75mV is applied across it. Calculate: (i) Resistance of shunt required for full scale deflection of 150 A. (ii) Series resistance for full scale deflection of 500 V.

Description : A permanent magnet moving coil instrument gives full scale deflection of 25mA when a voltage of 75mV is applied across it. Calculate: (i) Resistance of shunt required for full scale deflection of 150 A. (ii) Series resistance for full scale deflection of 500 V.

Last Answer : Answer :

A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying

Description : A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a current of 50 mA. To measure current upto 100 A, we will have to connect • 10 W resistance in series • 10 W resistance in parallel • 10/1999 W resistance in series • 10/1999 W resistance in parallel

Last Answer : A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a current of 50 mA. To measure current upto 100 A, we will have to connect 10/1999 W resistance in parallel

Which of the following factors limit the deflection of the pointer of a PMMC instrument of about

Description : Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o?  1. Its damping mechanism  2. Linearity of magnetic field in which the coil moves  3. Control spring arrangement  4. ... Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4 

Last Answer : Which of the following factors limit the deflection of the pointer of a PMMC instrument of about 90o?  1. Its damping mechanism  2. Linearity of magnetic field in which the coil moves  3. Control spring arrangement  4. ... Only 1 and 3 (b) Only 2 and 4 (c) Only 2 and 3 (d) Only 1 and 4 

In a gravity controlled instrument, the deflection angle is proportional to

Last Answer :  In a gravity controlled instrument, the deflection angle is proportional to sine inverse of measurand.

The instrument having its deflection depends upon average value is:

Last Answer : The instrument having its deflection depends upon average value is:  Rectifier type

The deflection of hot-wire instrument depends on:

Last Answer : The deflection of hot-wire instrument depends on: RMS value of the alternating current

A null hypothesis is (A) when there is no difference between the variables (B) the same as research hypothesis (C) subjective in nature (D) when there is difference between the variables

Description : A null hypothesis is (A) when there is no difference between the variables (B) the same as research hypothesis (C) subjective in nature (D) when there is difference between the variables

Last Answer : (A) when there is no difference between the variables

For dynamic strain measurement, the Wheatstone bridge used is of __________ type. (A) Voltage sensitive null (B) Voltage sensitive deflected (C) Current sensitive deflected (D) None of these

Description : For dynamic strain measurement, the Wheatstone bridge used is of __________ type. (A) Voltage sensitive null (B) Voltage sensitive deflected (C) Current sensitive deflected (D) None of these

Last Answer : (B) Voltage sensitive deflected

Failing to reject the null hypothesis when it is false is: a. alpha b. Type I error c. beta d. Type II error

Description : Failing to reject the null hypothesis when it is false is: a. alpha b. Type I error c. beta d. Type II error

Last Answer : d. Type II error

Why is it important to properly frame the null and alternative hypothesis?

Description : Why is it important to properly frame the null and alternative hypothesis?

Last Answer : It's the scientific method. You have to know what you are testing. The null hypothesis is that the relationship you think is there isn't there. You need the alternative hypothesis ... significant evidence to support the alternative hypothesis or else you can not disprove the null hypothesis.

Why is 'fluther_disc' null or not an object on some Fluther pages?

Description : Why is 'fluther_disc' null or not an object on some Fluther pages?

Last Answer : Which pages, exactly?

A primary key value can be NULL. -Technology

Description : A primary key value can be NULL. -Technology

Last Answer : False The primary key of table is used to uniquely identify each and every row in the table. So, its all keys and columns must be defined as NOT NULL.

NULL value means : (i) 0 value (ii) 1 value (iii) None value (iv) None of the above -Technology

Description : NULL value means : (i) 0 value (ii) 1 value (iii) None value (iv) None of the above -Technology

Last Answer : Correct option (d) None value

In Pandas the function used to check for null values in a DataFrame is ..... -Technology

Description : In Pandas the function used to check for null values in a DataFrame is ..... -Technology

Last Answer : In Pandas the function used to check for null values in a DataFrame isisnull()

null Vector Who Say ?

Last Answer : that All Of vectors The value is ' zero ' to them Who Zero Vector Or Null Vector Says.

The expression 1/√2 (i + j) is a  (A) unit vector  (B) null vector  (C) vector of magnitude  (D) scalar

Description : The expression 1/√2 (i + j) is a  (A) unit vector  (B) null vector  (C) vector of magnitude  (D) scalar

Last Answer : The expression 1/√2 (i + j) is a (A) unit vector (B) null vector (C) vector of magnitude √2 (D) scalar

Define and explain the following terms:  i. Zero vector (Null vector)  ii. Resultant vector  iii. Negative vectors iv. Equal vectors 

Description : Define and explain the following terms:  i. Zero vector (Null vector)  ii. Resultant vector  iii. Negative vectors iv. Equal vectors 

Last Answer : Define and explain the following terms: i. Zero vector (Null vector) ii. Resultant vector ... vectors iv. Equal vectors v. Position vector

Assertion : In potentiometer experiment, null point cannot be obtained if emf of unknown battery is more than the emf of known battery. Reason : By in

Description : Assertion : In potentiometer experiment, null point cannot be obtained if emf of unknown battery is more than the emf of known battery. Reason : By in

Last Answer : Assertion : In potentiometer experiment, null point cannot be obtained if emf of unknown battery is ... If Assertion is false but Reason is true.

Assertion : In case of potentiometer experiment, if emfs of known and unknown both batteries are increased two times, then null point length will rema

Description : Assertion : In case of potentiometer experiment, if emfs of known and unknown both batteries are increased two times, then null point length will rema

Last Answer : Assertion : In case of potentiometer experiment, if emfs of known and unknown both batteries are ... If Assertion is false but Reason is true.

A resistance R is to be measured using a meter bridge. Student chooses the standared resistance S to be `100 Omega`. He finds the null point at `l_(1)

Description : A resistance R is to be measured using a meter bridge. Student chooses the standared resistance S to be `100 Omega`. He finds the null point at `l_(1)

Last Answer : A resistance R is to be measured using a meter bridge. Student chooses the standared resistance ... a more accurate measurement with a meter bridge

Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is near about the centre of the wire.

Description : Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is near about the centre of the wire.

Last Answer : Show that the percentage error in the measurement of resistance by a metre bridge is minimum when the null point is ... B. 50 cm C. 80 cm D. 100 cm

Is Gary Null Ultimate Lifetime Diet shake safe for a nursing mother trying to lose pregnancy weight?

Description : Is Gary Null Ultimate Lifetime Diet shake safe for a nursing mother trying to lose pregnancy weight?

Last Answer : No no not at all. During pregnancy every mother Should consult to doctor before taking this diet.Again keep in mind it can be taken as food supplementation but not for reducing weight

Null means what in bank terms?

Description : Null means what in bank terms?

Last Answer : Null defines the value in a banking account as zero, no value. Zero or null are used to state the same idea on banking and investment documents.

A shunt-fed quarter-wavelength Marconi antenna A. has maximum RF impedance to ground at its feedpoint B. has a current null at its feedpoint C. has a zero DC resistance to ground D. has zero RF resistance to ground

Description : A shunt-fed quarter-wavelength Marconi antenna A. has maximum RF impedance to ground at its feedpoint B. has a current null at its feedpoint C. has a zero DC resistance to ground D. has zero RF resistance to ground

Last Answer : C. has a zero DC resistance to ground

Very low signal strength in antenna. A. Minor lobes B. Null C. Antenna patterns D. Major lobes

Description : Very low signal strength in antenna. A. Minor lobes B. Null C. Antenna patterns D. Major lobes

Last Answer : B. Null

Skip zone is otherwise known as A. Empty zone B. Shadow zone C. Null zone D. Zone of silence

Description : Skip zone is otherwise known as A. Empty zone B. Shadow zone C. Null zone D. Zone of silence

Last Answer : D. Zone of silence

In radio High frequency communications the higher the radio frequency the ______. A. Higher it can reach B. Shorter it can reach C. Effect is null D. Longer it can reach

Description : In radio High frequency communications the higher the radio frequency the ______. A. Higher it can reach B. Shorter it can reach C. Effect is null D. Longer it can reach

Last Answer : D. Longer it can reach

When electric potential is null, then the electric field intensity will be a) 0 b) 1 c) dA/dt d) –dA/dt

Description : When electric potential is null, then the electric field intensity will be a) 0 b) 1 c) dA/dt d) –dA/dt

Last Answer : d) –dA/dt

Curl of gradient of a vector is a) Unity b) Zero c) Null vector d) Depends on the constants of the vector

Description : Curl of gradient of a vector is a) Unity b) Zero c) Null vector d) Depends on the constants of the vector

Last Answer : c) Null vector

Divergence of gradient of a vector function is equivalent to a) Laplacian operation b) Curl operation c) Double gradient operation d) Null vector

Description : Divergence of gradient of a vector function is equivalent to a) Laplacian operation b) Curl operation c) Double gradient operation d) Null vector

Last Answer : a) Laplacian operation

Why is my Javascript execution always returning null?

Description : Why is my Javascript execution always returning null?

Last Answer : ou need to return from your javascript snippet to return a value, so: js.executeScript(“document.title”); will return null, but: js.executeScript(“return document.title”); will return the title of the document.

can we create a null as a key for a map collection ?

Description : can we create a null as a key for a map collection ?

Last Answer : Ans. Yes , for Hashtable. Hashtable implements Map interface.

. What is null hypothesis?

Description : . What is null hypothesis?

Last Answer : "The statement being tested in a test of [statistical] significance is called the null hypothesis. The test of significance is designed to assess the strength of the evidence against the null hypothesis. Usually, ... is a statement of 'no effect' or 'no difference'. It is often symbolized as H0.

Can null keys be entered in cluster index, normal index ?

Description : Can null keys be entered in cluster index, normal index ?

Last Answer : Yes.

Which of the following matrix is used for load flow studies? a) null matrix b) Unit matrix c) Z bus matrix d) Y bus matrix

Description : Which of the following matrix is used for load flow studies? a) null matrix b) Unit matrix c) Z bus matrix d) Y bus matrix

Last Answer : d) Y bus matrix

Normally Z bus matrix is a a) null matrix b) sparse matrix c) full matrix d) unit matrix

Description : Normally Z bus matrix is a a) null matrix b) sparse matrix c) full matrix d) unit matrix

Last Answer : full matrix

The result of the logical comparison (NULL = NULL) will be… And in the case of (NULL != NULL)

Description : The result of the logical comparison (NULL = NULL) will be… And in the case of (NULL != NULL)

Last Answer : False in both cases.

A hypothesis that States the nature (positive or negative) of the interaction between two or more variables is called a. Associated Hypothesis b. Casual Hypothesis c. Null Hypothesis d. Directional Hypothesis

Description : A hypothesis that States the nature (positive or negative) of the interaction between two or more variables is called a. Associated Hypothesis b. Casual Hypothesis c. Null Hypothesis d. Directional Hypothesis

Last Answer : d. Directional Hypothesis

If a research finding is statistically significant, then ____. a. The observed result is probably not due to chance b. The observed result cannot possibly be due to chance c. The observed result is probably a chance result d. The null hypothesis of “no relationship” is probably true

Description : If a research finding is statistically significant, then ____. a. The observed result is probably not due to chance b. The observed result cannot possibly be due to chance c. The observed result is probably a chance result d. The null hypothesis of “no relationship” is probably true

Last Answer : a. The observed result is probably not due to chance

Pointer holds A) Value of variable B) Address of variable C) Value and address of variable D) Always null

Description : Pointer holds A) Value of variable B) Address of variable C) Value and address of variable D) Always null

Last Answer : B) Address of variable

The property of binary tree is A) The first subset is called left subtree B) The second subtree is called right subtree C) The root cannot contain NULL D) The right subtree can be empty

Description : The property of binary tree is A) The first subset is called left subtree B) The second subtree is called right subtree C) The root cannot contain NULL D) The right subtree can be empty

Last Answer : D) The right subtree can be empty

The ..................... is essentially used to search for patterns in target string. A) Like Predicate B) Null Predicate C) In Predicate D) Out Predicate

Description : The ..................... is essentially used to search for patterns in target string. A) Like Predicate B) Null Predicate C) In Predicate D) Out Predicate

Last Answer : A) Like Predicate

Reflexivity property says that X Y is true if Y is …………………. A) Subset of X B) Null set of X C) Super set of Y D) Subset of Y

Description : Reflexivity property says that X Y is true if Y is …………………. A) Subset of X B) Null set of X C) Super set of Y D) Subset of Y

Last Answer : A) Subset of X