Which of the following high resistance materials has the highest operating temperature ?

Match List-I with List-II and select the correct answer using the code given below the Lists: List I (Low-Latitude Climate) List I (Characteristic) A. Wet Equatorial 1. Uniform temperatures, mean near 27°C B. Monsoon and trade wind coastal 2. Marked temperature cycle with very high temperature before the rainy season C. Wet-dry tropical 3. Temperatures show an annual cycle with a high temperature in the high-Sun season Strong temperature cycle. with intense temperature during the high-Sun season D. Dry tropical 4. Strong temperature cycle, with intense temperature during the high-Sun season

A

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

B

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

C

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

D

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

Consider the following statements: 1. Both ferromagnetic and ferrimagnetic materials have domain structures; each domain has randomly oriented magnetic moments when no external field is applied. 2. Both ferromagnetic and ferrimagnetic materials make those domains that have a favourable orientation to the applied field grow in size. 3. The net magnetic moment in ferromagnetic materials is higher than that in ferrimagnetic materials. 4. The net magnetic moment in ferrimagnetic materials is higher than that in ferromagnetic material. Which of the above statements are correct?

A

1 and 4 only

B

1, 2 and 4

C

2 and 4 only

D

1, 2 and 3

Consider the following statements regarding the pattern of temperature during the summer season in India. I. In March, the highest temperature can be observed in the Southern parts of the country. II. In April, the highest temperature is recorded in the central India mainly in Madhya Pradesh. III. In May, the highest temperature can be observed in Punjab and Haryana. Which among the above statements is/are correct?

A

Both II and III

B

Both I and II

C

Both I and III

D

All I, II and III

Which of the following high resistance materials have highest operating temperature?

A

Kanthal

B

Manganin

C

Nichrome

D

Eureka

For achieving high starting torque and high operating efficiency an induction motor should have _______ rotor circuit resistance and _______ circuit resistance under operating condition.

A

high, low

B

low, high

C

low, low

D

high, high

Assertion (A): A high operating ratio indicates a favourable position.
Reason (R): A high operating ratio leaves a high margin to meet non-operating expenses.

A

Both (A) and (R) are correct, and (R) correctly explains (A)

B

Both (A) and (R) are correct, but (R) does not explain (A)

C

Both (A)and (R) are incorrect

D

(A) is correct, but (R) is incorrect

Consider the following statements for piezoelectric materials: 1. All piezoelectric materials are ferroelectric materials also. 2. Piezoelectric materials have a high value of dielectric constant. Which of the above statements is/are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that

A

The system comprises of partially mis-cible liquids

B

The system comprises of miscible liquids

C

The system comprises of an azeotrope

D

On heating, a vapor phase will appear ; while on cooling, a solid phase will appear

Total resistance in welding is composed of: (i) Resistance of electrode (ii) Contact resistance between electrode and work piece (iii) Contact resistance between two work piece plates (iv) Resistance of work piece Which of the following is correct?

A

i

B

ii, iii and iv

C

ii and iv

D

I, ii, iii and iv

For an instrumentation amplifier, the following parameters are given (a) High input resistance and low power consumption (b) Low input resistance and low power consumption (c) High CMRR and high slew rate (d) Low CMRR and high slew rate Which of the given parameters are a major requirement for an instrumentation amplifier?

A

(a) and (d)

B

(b) and (c)

C

(a) and (c)

D

(c) and (d)

Which of the following high resistance materials has the highest operating temperature ?

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