Dear Students, SSCJunior Engineer Exam is the next target for the aspirants. We are providing previous year questions especially for SSC JE 2017-18 Exam will be conducted from 22 January to 25 January 2018. We have provided other emphasizing questions from Mechanical Engineering in the quiz given below. Attempt this quiz and prepare yourself flawlessly. We wish you good luck for the upcoming Exams.
Q1. According to first law of thermodynamics
(a) Total internal energy of a system during a process remains constant
(b) Total energy of a system remains constant
(c) Work done by a system is equal to the heat transfer by the system
(d) Internal energy, enthalpy and entropy during a process remain constant.
Q2. Zeroth law of thermodynamics form the basis of measurement of
(a) Pressure
(b) Temperature
(c) Heat exchange
(d) Work
Q3. Which phenomenon will occur when the valve at the discharge end of a pipe connected to a reservoir is suddenly closed?
(a) Cavitation
(b) Erosion
(c) Hammering
(d) Surging
Q4. Which one of the following causes lift on an immersed body in a fluid stream ?
(a) Buoyant forces
(b) Resultant fluid force on the body
(c) Dynamic fluid force component exerted on the body parallel to the approach velocity
(d) Dynamic fluid force component exerted on the body normal to the approach velocity
Q5. Which one of the following statements is correct ?
Irrotational flow is characterized as the one in which
(a) the fluid flows alone a straight line
(b) the fluid does not rotate as it move along
(c) the net rotation of fluid particles about their mass centres remains zero
(d) the streamlines of flow are curved and closely spaced
Q6. What is the ratio of displacement thickness to momentum thickness for linear velocity distribution over a flat plate ?
(a) 1.5
(b) 2.0
(c) 2.5
(d) 3.0
Q7. In a perfect gas having ratio of specific heats as 1.4, what is the strength of a normal shock with upstream Mach number equal to 5.0 ?
(a) 27
(b) 28
(c) 29
(d) 24
Q8. Which of the following machines does not require quick return mechanism?
(a) Slotter
(b) Planer
(c) Shaper
(d) Broaching
Q9. Milling machine is classified as horizontal or vertical type, depending on the position of
(a) spindle
(b) work piece
(c) milling cutter
(d) work table or bed
Q10. The taper provided on pattern for its easy and clean withdrawal from the mould is called
(a) taper allowance
(b) draft allowance
(c) distortion allowance
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