Glass reacts with
H2SO3
HF
HNO3
K2Cr2O7
- Energy to be supplied to the radioactive nucleus for the emission of a neutron is __________ MeV.
- While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
- For a spontaneous natural process at constant temperature and pressure, the free energy of the system…
- Hardening of steel is not possible, unless it is heated __________ critical point.
- Leakage in a cooking gas cylinder is detected by
- Silicon percentage in silicon steel used for electrical equipments is about
- Propulsion of rocket follows from the
- __________ is not used as a material of construction in thermocouples.
- About __________ ton of coke is required in a cupola to produce one ton of casting.
- Fog is an example of colloidal system of
- Pick out the wrong statement.
- Pick out the wrong statement about coating/electroplating of metals.
- Notched bar test is used for testing the __________ of a material.
- Flue gases pass through the following boiler accessories in a high pressure natural circulation boiler.A.…
- Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot
- Steel is welded using the __________ flame.
- Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil,…
- Which of the following is a commonly used manometric liquid for low pressure range?
- Atomic __________ of an element is a whole number.
- Liquid nitrogen containers can be made from
- CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because…
- Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
- Hot & cold working of material causes its __________ deformation.
- Magnesium is present in
- What is the value of included angle of a triangular notch for maximum discharge?
- Brazing filler metal used for joining steel plates
- Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal &…
- Superheating of steam is done at constant
- The highest stress that a material can withstand for a specified length of time without excessive deformation…
- Ammonia leakage in the refrigeration system is detected by