Fluid Dynamics — Physics MCQs (Class 11)
Free chapter-wise Physics MCQs with answers for MDCAT, FSc and entry tests.
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#1 The SI unit of pressure is:
A) pascal
B) newton
C) watt
D) joule
#2 Pressure is defined as:
A) force per unit area
B) density times velocity
C) force times area
D) area per unit force
#3 If force is applied over a large area, pressure:
A) decreases
B) increases
C) remains the same
D) varies with velocity
#4 A force of 10 N is applied on an area of 5 cm². What is the pressure?
A) $2\ \text{Pa}$
B) $500\ \text{Pa}$
C) $0.5\ \text{Pa}$
D) $10\ \text{Pa}$
#5 For an ideal fluid, the equation of continuity is:
A) $A_1v_1=A_2v_2$
B) $v_1=v_2$
C) $F_1A_1=F_2A_2$
D) $P_1v_1=P_2v_2$
#6 Bernoulli’s equation is derived from:
A) conservation of mechanical energy
B) conservation of momentum
C) Newton's second law
D) Newton's third law
#7 In a fluid flowing through a pipe, the pressure is highest:
A) where the speed is lowest
B) where the speed is highest
C) in the middle of the pipe
D) at the entrance of the pipe
#8 According to Pascal's law:
A) pressure exerted on a confined fluid is transmitted equally in all directions
B) pressure increases with depth
C) fluid velocity remains constant
D) force equals area
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