91.

92.

93.

94.

96.

Inside which of the following hydraulic pumps a crescent shaped spacing can be
found ?

(^) External gear pump (B) Internal gear pump
(C) Vane type pump (D) Lobe pump

Which of the following is true about temperature sensors ?

(A) | Its electrical resistance increases with increase in temperature
(B) 15 electrical resistance decreases with increase in temperature
(C) It could be fitted with a balancing coil gauge

0) 15 electrical resistance remains unchanged irrespective of temperature changes

Which of the following components serves the purpose of retaining the piston down
against the seat in balanced condition in a pressure relief valve ?

(^) Heavy spring (B) Poppet
(C) Adjusting screw (D) Light spring

Which of the following is a dependant factor on fluid flow rate of a variable flow control
valve ?

(A) Pressure difference ൯) The size of throttle gap
(C) Viscosity of oil (D) All of these

Which of the following is not true about pneumatic systems ?
(^) FRL assembly also add small quantities of oil into the compressed air systems
(B) The expansion of PRV is Pressure Return Valve

(C) Pressure switch can restart the compressor motor when the pressure drops
below a pre-set value

(D) Spool valve is a type of slide valve

Which of the following is false about Orifices ?

(A) An orifice is the simplest method for controlling fluid flow
(B) The orifice is always connected in parallel with the pump
(C) Variable orifice is a calibrated needle valve

(D) Orifices create a pressure drop

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