Question: Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle. [A]. volume [B]. pressure [C]. heat [D]. none of these Answer: Option A Explanation: No answer description available for this question.
Question: A material lacking in toughness is usually termed as [A]. plastic [B]. malleable [C]. brittle [D]. ductile Answer: Option C Explanation: No answer description available for this question.
Question: Electrode potential is not concerned with the measurment of [A]. pH value [B]. temperature [C]. viscosity [D]. density Answer: Option B Explanation: No answer description available for this question.
Question: The pH value is the measure of hydrogen ion concentration in a solution. The term pH stands for the __________ in the solution. [A]. power of hydrogen ion concentration [B]. percentage of hydrogen ions [C]. presence of hydrogen ions…
Steel produced from phosphatic iron is _______________ in nature? A. Malleable B. DuctileC. Brittle D. Tough
Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its________________? A. Lower cost B. Abundant availabilityC. Resistance to vegetable acids as the tin plate are commercially used in…
Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type________________? A. Parallel flow with equal heat capacitiesB. Counter flow with equal heat capacities C. Counter flow with…
Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is ________________ mm? A. 15B. 25 C. 10 D. 30
Out of the following substances, one ton of ______________ will store the maximum heat for a rise of 30°C in temperature ? A. Steel B. LigniteC. Water D. Lime stone
On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is__________________? A. CreepB. Toughness C. Tensile strength D. Fatigue