Instrumentation Transducers Mock Test 1

10%

Question 1 of 10

1. How systematic errors are eliminated?

Finding variance of reading

Frequent measurement

Finding mean of reading

Replacement of instrument

Question 1 of 10

Question 2 of 10

2. What are the four terminals in four terminal resistance?

Four voltage terminals

Two potential terminals and two current terminals

3 current terminals and one voltage terminal

Four current terminals

Question 2 of 10

Question 3 of 10

3. Why 4 terminal resistors are used?

To increase current flow

None of the mentioned

For protection

To overcome parasitic resistances

Question 3 of 10

Question 4 of 10

4. In a measuring system what is the term used to specify a difference between higher and lower calibration values?

Span

Range

Threshold

Drift

Question 4 of 10

Question 5 of 10

5. What will you call an impedance with a zero phase angle?

Impedance itself

Resistance

Zero impedance

Reactance

Question 5 of 10

Question 6 of 10

6. Amplifier with power supply and output circuits galvanically isolated are called ______________

Inverting amplifier

None of the mentioned

Isolation amplifier

Differential amplifier

Question 6 of 10

Question 7 of 10

7. Which of the following can be the range of input impedance of voltmeter?

less than 1Ω

Between 1Ω and 10Ω

unpredictable

Very high

Question 7 of 10

Question 8 of 10

8. What is the result of the expression f(t)= u (t+2) – u (t-3)?

f (t) = 1 for -2 ≤ t ≤ -1

f (t) = 1 for -2 ≤ t ≤ 0

f (t) = 1 for -2 ≤ t ≤ 3

f (t) = 1 for 2 ≤ t ≤ 3

Question 8 of 10

Question 9 of 10

9. Uncertainty in quantity X is given by ΔX. Then what will be the uncertainty in quantity R for which R=c.X?

(ΔX)c

|c|.ΔX

ΔX

^ΔX⁄_|c|

Question 9 of 10

Question 10 of 10

10. What is ‘live zero’?

Output non zero for zero input

Output zero for zero input

Output null for all input

Output unpredictable

Question 10 of 10