- Nickel
- Brass
- Chromel
- Invar
1 Answers
Call
Talk Doctor Online in Bissoy App
An emf of the order of mV is generated when two solutions of different hydrogen ion concentration are separated by a thin glass wall. This is the working principle of a?
Answer: Option 1 Let'
1 Answers 1 views
Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
Answer: Option 1 Difference in times required by the first man (A) and second man (B) = 3 hours. Also, if ta and tb are the respective times, then tb -...
1 Answers 6 views
Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ρ = Density of substance, S = Specific heat, and k = Thermal conductivity)?
Answer: Option 1 Thermal Diffusivity is defined as the ratio of heat conducted to the heat energy stored per unit volume of a material.the thermal conductivity of a substance divided...
1 Answers 1 views
Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).?
Answer: Option 2 Let'
1 Answers 1 views
Which of the metals has the maximum thermal conductivity?
Answer: Option 3 Silver has the maximum thermal conductivity.
1 Answers 1 views
The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.?
Answer: Option 2 Let'
1 Answers 1 views
The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?
Answer: Option 4 Let'
1 Answers 1 views
Which of the following filled system expansion thermometers has the lowest positive temperature measurement capability?
Answer: Option 2 Let'
1 Answers 1 views