167901. If two pumps identical in all respects and each capable of delivering a discharge Q against a head H are connected in series, the resulting discharge is :
167902. The power obtained from an impulse turbine is proportional to the number of nozzles used. A pelton turbine with six nozzles has a specific speed of 8.1. The specific speed per nozzle is :
167903. During idling of a petrol engine requires :
167904. In investment casting the pattern :
167905. In the Orsat apparatus KOH solution is used to absorb :
167906. For the same compression ratio :
167907. The knocking in SI engine gets reduced :
167908. Work input to the air compressor with n as index of compression
167909. The thermal conductivity is expressed as :
167910. In SI engines which one of the following is the correct order of the fuels with increasing detonation tendency :
167911. The Nusselt number in natural convection is a function of Prandtl number and :
167912. The emissivity of a body is equal to absorptivity when the body remains in thermal equilibrium. This law refers to as :
167913. In a vapour compression cycle the condition of refrigerant is saturated liquid :
167914. Upto critical radius of insulation the heat flow :•
167915. As relative humidity decreases the dew point will be-------------wet bulb temperature.
167916. A two stroke engine has a speed of 750 rpm. A four stroke engine having an identical cylinder size running at 1500 rpm. The theoretical output of the two stroke engine will be :
167917. Coriolis component of acceleration is present exists whenever a point moves along a path that has :
167918. The speed of an engine is seen to fluctuate Continuously above and below mean speed. The governor is said to be :
167919. Which motor will be suitable for traction?
167920. When two spur gears having involute profiles on their tooth engage the line of action is tangential to :
167921. Crowning of pulleys is generally done :'.
167922. The diameter of shaft is increased from 50 mm to 100 mm all other conditions remaining unchanged. How many times the torque carrying capacity increases?
167923. If a compression coil spring of stiffness 10 N/m is cut into two equal parts and the used in parallel the equivalent spring stiffness will be :
167924. A differential gear in an automobile is :
167925. The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes turn to left. The effect of gyroscopic couple on the aeroplane will be :
167926. In a locomotive the ratio of the connecting rod length to crank radius is kept large in order to :
167927. In order to facilitate the starting of locomotive in any position, the crank of a locomotive with two cylinders are placed :
167928. The ratio of maximum displacement of the forced vibration to the deflection due to static force is known as :
167929. A mild steel rod having 50 mm diameter and 500 mm length is to be turned on a lathe. Determine the machining lime to reduce the rod to 45 mm in one pass when cutting speed is 30 m/min and a feed of 0.7 mm/rev is used :
167930. For producing more accurate holes, the sequence of operations to be followed is :
167931. The main purpose of chaplets used in foundary practice are :
167932. In oxy-acetylene gas welding the volume of oxygen required per unit volume of acetylene :
167933. Tempering of hardened steel is done to increase its :
167934. The angle which is found between the face of the cutting tool and the normal to the machined surface at the cutting edge is called :
167935. The hardness with which the bond holds the cutting points or abrasives inthe term :
167936. The gears manufactured on generating principlein :
167937. Quick returning mechanism is used in :
167938. During ultrasonic machining the metal removal is achieved by :
167939. According to Indian standard specifications the total number of designated grades of fundamental tolerances are :
167940. In a metric thread designated by M12 x 1.5 specify that the thread has :
167941. In a steam engine the joint to be used for connecting the piston rod and cross-head is :
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