Q. Device used as a standard for the calibration of pressure gauges is a

View solution

Q. X-rays are

View solution

Q. Diffusion co-efficient of a metal in a solid solution depends upon its

View solution

Q. Cast iron contains __________ percent carbon.

View solution

Q. Alloys having more than 80% copper are generally more

View solution

Q. Theoretical volume of oxygen required for complete combustion of 1Nm³ of acetylene, in oxy-acetylene welding is __________ Nm³ .

View solution

Q. Out of the following, the joint produced by __________ has the lowest strength.

View solution

Q. Dies for wire drawing are generally made of

View solution

Q. The starting of a car takes time in winter, because the

View solution

Q. The elastic strain in copper is due to the

View solution

Q. Ammonia leakage in the refrigeration system is detected by

View solution

Q. Fibre glass is a composite material of

View solution

Q. According to thermodynamic Farenhite scale, the fundamental interval between ice point to steam point is

View solution

Q. Maximum consumption of limestone is in the __________ industry.

View solution

Q. Austenite is not

View solution

Q. Stainless steel is welded with difficulty because of

View solution

Q. For preparation of porous bearings by powder metallurgy, preferred particle shape is

View solution

Q. The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.

View solution

Q. High speed steel tools retain their hardness upto a temperature of __________ °C.

View solution

Q. Wrought iron does not have

View solution