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Which of the following heart valves are mechanical valves? i. Ball Valve ii. Autograft Valve iii. Xenograft Valve iv. Single Leaflet Valve v. Homograft Valve vi. Bi leaflet Valves
Consider the following statements regarding JFET: 1. The relationship between the drain current and gate-to-source voltage of a JFET is a nonlinear. 2. The minimum current for JFET occurs at pinch-off voltage defined by VGS = VP. 3. A current controlled device is one in which a current defines the operating conditions of the device. Which of the above statements are correct?
A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is
Though a needle valve is similar to a gate valve in design and operation it can be used as a throttling valve.
Assertion (A): A JFET can be used as a current source.Reason (R): In beyond pinch off region the current in JFET is nearly constant.
Assertion (A): A JFET can be used as a current source.
Reason (R): In beyond pinch off region the current in JFET is nearly constant.
For the same terminal conditions and valve size, the pressure drop in a fully opened globe valve as compared to that in a gate valve is
Which of the figures shown in the options is an F-head engine as per valve arrangement (SV is suction valve, whereas EV is Exhaust valve)?
Two pipes M and N can fill a tank in 30 minutes and 35 minutes respectively and a valve A can empty that tank in 70 minutes. All of the three start their work and after sometime valve has been closed. If total time taken to fill the tank from the beginning is 18 minutes, find after how many minutes valve was closed?
A valve clearance of about 0.3 mm is usually given to ensure that the valve closes fully. What is tappet clearance in an overhead valve engine?